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Patents

Granted Patents (1 Patent)

#1 “METHOD FOR ESTABLISHING MESHED HYBRID AC AND DC GRIDS WITH SMART SOLID STATE TRANSFORMER”

Chandan Kumar, Dwijasish Das

IIT Guwahati, India • Patent No.: 396702 • Granted in 2022

Journal Publications

Peer-Reviewed International Journals & Transactions (38 Publications)

#1 “Inductor Current Ripple Suppression in Dual Active Bridge Converters Using Finite Control Set Model Predictive Control”

S. Meikap, C. Kumar, F. D. M. Carnielutti and J. Rodriguez

IEEE Transactions on Industrial Electronics • 2026 • DOI: 10.1109/TIE.2026.3718189 →

#2 “Virtual Oscillator Control for Synthesising Virtual Inertia in a Smart Transformer-Based AC Microgrids”

S. Gaurav, C. Kumar and M. Liserre

IEEE Transactions on Industrial Electronics • 2026 • DOI: 10.1109/TIE.2026.3697438 →

#3 “Applications and Services of Solid-State Transformers in Active Distribution Networks—A Critical Review”

Felix Wald, V. M. Hrishikesan, Oriol Gomis-Bellmunt, Haoran Ji, Masoud Davoudi, Ali Bidram, Mazheruddin Syed, Martina Joševski, Sebastian Brüske, Chandan Kumar, Rafael Peña Alzola, Ilknur Colak, Sanjeev Pannala, Marco Liserre and Giovanni De Carne

IEEE Transactions on Smart Grid • vol. 16, no. 5, pp. 3615-3637, Sept. 2025 • DOI: 10.1109/TSG.2025.3574007 →

#4 “Power Control in Andronov-Hopf Virtual Oscillator Converters for ST-Based LV Distribution Systems”

Sahil Gaurav, Sante Pugliese, Marius Langwasser, Chandan Kumar, Marco Liserre

IEEE Transactions on Industrial Electronics • 2025 • DOI: 10.1109/TIE.2025.3546379 →

#5 “A Meshed Hybrid Microgrid Configuration With Unified Power Quality Conditioner”

Devendra Kumar, V. M. Hrishikesan, Anup Kumar Deka, Dwijasish Das, Chandan Kumar, M. K. Mishra

IEEE Journal of Emerging and Selected Topics in Power Electronics • 2025 • DOI: 10.1109/JESTPE.2025.3536859 →

#6 “Observer-Based Control Using Super-Twisting Technique for a PV-Wind-HESS-Based DC Microgrid Feeding Constant Power Loads”

Tony Thomas, Mahesh Mishra, Chandan Kumar, Macro Liserre

IEEE Journal of Emerging and Selected Topics in Power Electronics • 2025 • DOI: 10.1109/JESTPE.2024.3469635 →

#7 “Control of a PV-Wind Based DC Microgrid With Hybrid Energy Storage System Using Lyapunov Approach and Sliding Mode Control”

Tony Thomas, Mahesh K Mishra, Chandan Kumar, Marco Liserre

IEEE Transactions on Industry Applications • 2024 • DOI: 10.1109/TIA.2023.3349359 →

#8 “Net Load Forecast Error Compensation for Peak Shaving in a Grid-Connected PV Storage System”

Manojkumar Rampelli, Chandan Kumar, Sanjib Ganguly, Joãs P. S. Catalão

IEEE Transactions on Power Systems • 2024 • DOI: 10.1109/TPWRS.2023.3317309 →

#9 “Stabilization of Smart Transformer Based Islanded Meshed Hybrid Microgrid During Electric Vehicle Charging Transients”

Dwijasish Das, Chandan Kumar, Marco Liserre

IEEE Journal of Emerging and Selected Topics in Industrial Electronics • 2023 • DOI: 10.1109/JESTIE.2023.3294088 →

#10 “Rule-Based Peak Shaving Using Master-Slave Level Optimization in a Diesel Generator Supplied Microgrid”

Manojkumar Rampelli, Chandan Kumar, Sanjib Ganguly, Hoay Beng Gooi, Saad Mekhilef, João P. S. Catalão

IEEE Transactions on Power Systems • 2023 • DOI: 10.1109/TPWRS.2022.3187069 →

#11 “Power Loss Minimization in Smart Transformer Enabled Low Voltage Islanded Meshed Hybrid Microgrid”

Dwijasish Das, Rampelli Manojkumar, Chandan Kumar, Sanjib Ganguly

IEEE Access Journal • 2022 • DOI: 10.1109/ACCESS.2022.3224001 →

#12 “Coordinated Control Scheme for EV Charging and Volt/Var Devices Scheduling to Regulate Voltages of Active Distribution Networks”

Arunima Dutta, Sanjib Ganguly, Chandan Kumar

Sustainable Energy, Grids and Networks • 100761, 2022 • DOI: 10.1016/j.segan.2022.100761 →

#13 “Coordinated Volt/Var Control of PV and EV Interfaced Active Distribution Networks Based on Dual-Stage Model Predictive Control”

Arunima Dutta, Sanjib Ganguly, Chandan Kumar

IEEE Systems Journal • 2022 • DOI: 10.1109/JSYST.2021.3110509 →

#14 “MPC-Based Coordinated Voltage Control in Active Distribution Networks Incorporating CVR and DR”

Arunima Dutta, Sanjib Ganguly, Chandan Kumar

IEEE Transactions on Industry Applications • 2022 • DOI: 10.1109/TIA.2022.3163108 →

#15 “Optimal Demand Response in a Residential PV Storage System Using Energy Pricing Limits”

Manojkumar Rampelli, Chandan Kumar, Sanjib Ganguly

IEEE Transactions on Industrial Informatics • 2022 • DOI: 10.1109/TII.2021.3103014 →

#16 “An MVDC Based Meshed Hybrid Microgrid Enabled Using Smart Transformers”

Hrishikesan V M, Chandan Kumar, and Marco Liserre

IEEE Transactions on Industrial Electronics • 2022 • DOI: 10.1109/TIE.2021.3071683 →

#17 “Partial Start-up Scheme for Smart Transformer in Meshed Hybrid Islanded Grid Operation”

Dwijasish Das, Chandan Kumar

IEEE Transactions on Industry Applications • 2022 • DOI: 10.1109/TIA.2021.3124862 →

#18 “Impact of Optimal Control of Distributed Generation Converters in Smart Transformer Based Meshed Hybrid Distribution Network”

Chandan Kumar, Manojkumar Rampelli, Sanjib Ganguly, Marco Liserre

IEEE Access Journal • 2021 • DOI: 10.1109/ACCESS.2021.3119349 →

#19 “The Role of Renewable Energy System in Reshaping the Electrical Grid Scenario”

Giampaolo Buticchi, Chi-Seng Lam, Ruan Xinbo, Marco Liserre, Davide Barater, Mohamed Benbouzid, Oriol Gomis-Bellmunt, Carlos Andrés Ramos-Paja, Chandan Kumar, Rongwu Zhu

IEEE Open Journal of the Industrial Electronics Society • 2021 • DOI: 10.1109/OJIES.2021.3102860 →

#20 “Optimal Peak Shaving Control Using Dynamic Demand and Feed-in Limits for Grid-Connected PV Sources with Batteries”

Manojkumar Rampelli, Chandan Kumar, Sanjib Ganguly, Joao Catalao

IEEE Systems Journal • 2021 • DOI: 10.1109/JSYST.2020.3045020 →

#21 “Increasing Voltage Support Using Smart Power Converter Based Energy Storage System and Load Control”

Hrishikesan V M, Dwijasish Das, Chandan Kumar, Hoay Beng Gooi, Saad Mekhilef, Xiaoqiang Guo

IEEE Transactions on Industrial Electronics • 2021 • DOI: 10.1109/TIE.2020.3042165 →

#22 “Single-Phase Step-Up Switched-Capacitor-Based Multilevel Inverter Topology With SHEPWM”

Marif Daula Siddique, Saad Mekhilef, Sanjeevikumar Padmanaban, Mudasir Ahmed Memon, and Chandan Kumar

IEEE Transactions on Industry Applications • 2021 • DOI: 10.1109/TIA.2020.3002182 →

#23 “Operation and Control of the Smart Transformer in Meshed and Hybrid Grids: Choosing the Appropriate Smart Transformer Control and Operation Scheme”

Rongwu Zhu, Marco Liserre, Marius Langwasser, Chandan Kumar

IEEE Industrial Electronics Magazine • 2021 • DOI: 10.1109/MIE.2020.3005357 →

#24 “Operation of Meshed Hybrid Microgrid During Adverse Grid Conditions With Storage Integrated Smart Transformer”

Hrishikesan V M and Chandan Kumar

IEEE Open Journal of the Industrial Electronics Society • 2021 • DOI: 10.1109/OJIES.2021.3073142 →

#25 “Smart Transformer Enabled Meshed Hybrid Distribution Grid”

Dwijasish Das, Hrishikesan V M, Chandan Kumar, Marco Liserre

IEEE Transactions on Industrial Electronics • 2021 • DOI: 10.1109/TIE.2020.2965489 →

#26 “A new voltage control strategy to improve performance of DSTATCOM in electric grid”

Chandan Kumar, Mahesh K. Mishra, Saad Mekhilef

IEEE, CES Transactions on Electrical Machines and Systems • 2020 • DOI: 10.30941/CESTEMS.2020.00036 →

#27 “Voltage Control Using Smart Transformer via Dynamic Optimal Setpoints and Limit Tolerance in a Residential Distribution Network with PV Sources”

Manojkumar Rampelli, Chandan Kumar, Sanjib Ganguly, Hoay Beng Gooi, Saad Mekhilef

IET Generation Transmission & Distribution • 2020 • DOI: 10.1049/iet-gtd.2020.0213 →

#28 “Model Predictive Control-based Optimal Voltage Regulation of Active Distribution Networks with OLTC and reactive power capability of PV Inverters”

Arunima Dutta, Sanjib Ganguly, and Chandan Kumar

IET Generation Transmission & Distribution • 2020 • DOI: 10.1049/iet-gtd.2020.0378 →

#29 “Capacity Enhancement of a Radial Distribution Grid Using Smart Transformer”

Hrishikesan V M, Anup Kumar Deka, Chandan Kumar

IEEE Access Journal • 2020 • DOI: 10.1109/ACCESS.2020.2987602 →

#30 “Sizing and SOC-Management of a Smart Transformer-Based Energy Storage System”

Chandan Kumar, Rongwu Zhu, Giampaolo Buticchi, Marco Liserre

IEEE Transactions on Industrial Electronics • 2018 • DOI: 10.1109/TIE.2017.2784389 →

#31 “Design of external inductor for improving performance of voltage controlled DSTATCOM”

Chandan Kumar, Mahesh K. Mishra, Marco Liserre

IEEE Transactions on Industrial Electronics • 2016 • DOI: 10.1109/TIE.2016.2552148 →

#32 “Operation and control of an improved performance interactive DSTATCOM”

Chandan Kumar, Mahesh K Mishra

IEEE Transactions on Industrial Electronics • 2015 • DOI: 10.1109/TIE.2015.2420635 →

#33 “Predictive voltage control of transformer less dynamic voltage restorer”

Chandan Kumar, Mahesh K Mishra

IEEE Transactions on Industrial Electronics • 2015 • DOI: 10.1109/TIE.2014.2365753 →

#34 “A grid connected dual voltage source inverter with power quality improvement features”

M. V. Manoj Kumar, Mahesh K Mishra, Chandan Kumar

IEEE Transactions on Sustainable Energy • 2015 • DOI: 10.1109/TSTE.2014.2386534 →

#35 “An improved hybrid DSTATCOM topology to compensate reactive and nonlinear loads”

Chandan Kumar, Mahesh K Mishra

IEEE Transactions on Industrial Electronics • 2014 • DOI: 10.1109/TIE.2014.2321355 →

#36 “A multifunctional DSTATCOM operating under stiff source”

Chandan Kumar, Mahesh K Mishra

IEEE Transactions on Industrial Electronics • 2014 • DOI: 10.1109/TIE.2013.2276778 →

#37 “A voltage controlled DSTATCOM for power quality improvement”

Chandan Kumar, Mahesh K Mishra

IEEE Transactions on Power Delivery • 2014 • DOI: 10.1109/TPWRD.2014.2310234 →

#38 “A simple digital control algorithm for three phase shunt active filter: simulation and experimentation”

S Srinath, Chandan Kumar, M P Selvan

Frontiers in Energy, Springer Berlin Heidelberg • 2014 • DOI: 10.1007/s11708-013-0288-0 →

Conference Publications

Peer-Reviewed International & National Conference Proceedings (103 Publications)

#1“Fast Decoupling Control of TAB Converters Under EV Load Transients”

Somnath Meikap, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#2“Smart Transformer fed Asymmetrical Quad-Active Bridge based Power Supply for Data Centre Loads”

Anandh N, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#3“Current Stress Reduction in Neutral Point Clamped Triple Active Bridge Converter using Five Level Modulation Techniques”

Sumit Kumar, Somnath Meikap, Sanjib Ganguly, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#4“Modular Multilevel Converter based Single Stage High Power Conversion for Wireless Power Transfer”

Nilutpal Sarma, Hitesh Malviya, Ravindranath Adda, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#5“Improved Fault-ride-through Capability through Virtual Oscillator Control in Smart Transformer-based AC Microgrids”

Sahil Gaurav, Lakshmi Kant Rao, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#6“AC Short-Circuit Fault Detection with Reduced Sensors Using the Discrete Wavelet Transform in ST-Based Hybrid Microgrid”

Lakshmi Kant Rao, Sahil Gaurav, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#7“Improved Power Sharing in Smart Transformer-based Single-Phase AC Distribution Systems”

Visuno Naleo, Sahil Gaurav, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#8“Coordinated Voltage and Power Flow Control for Meshed Smart Transformer based Distribution Networks”

Nikita Ramachandra, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#9“Fault-Tolerant Modular Multilevel Converter with Distributed Energy Resource-Integrated Submodule”

Hitesh Malviya, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#10“UPS Architecture of ST based AQAB Converter for Data Centre Critical Loads”

Anandh N, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#11“Adaptive Virtual Impedance-Enabled Virtual Oscillator Control for Smart Transformer-Based AC Microgrids”

Sahil Gaurav, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#12“Selective Harmonic Extraction-Based Fault Detection for ST-Dominated MT-MVdc Networks”

Satyavarta Kumar Prince, Chandan Kumar

12th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2026) • IIT Guwahati, Assam, India • 16–19 Dec. 2026

#13“Impact of AC Faults on DC Dynamics of Smart Transformer LV Converter: HIL Validation”

Lakshmi Kant Rao, Somnath Meikap, Chandan Kumar, Zoran Miletic, Werner Tremmel, Thomas I. Strasser

2026 IEEE North-East India International Energy Conversion Conference and Exhibition (NE-IECCE 2026) • NIT Meghalaya, India • 12–14 June 2026

#14“Virtual Oscillator-Based Dual-Loop Control of a Grid-Forming Modular Multilevel Converter for Large-Scale PV Integration in MVac Grids”

Hitesh Malviya, Sahil Gaurav, Chandan Kumar

2026 IEEE North-East India International Energy Conversion Conference and Exhibition (NE-IECCE 2026) • NIT Meghalaya, India • 12–14 June 2026

#15“DC Distance Protection Scheme for ST Based Multi-Terminal MVdc Network”

Satyavarta Kumar Prince, Chandan Kumar

2026 IEEE North-East India International Energy Conversion Conference and Exhibition (NE-IECCE 2026) • NIT Meghalaya, India • 12–14 June 2026

#16“Model Predictive Control-Based Power Management in Smart Transformer-Enabled Medium Voltage DC Distribution Networks”

Nikita Ramachandra, Chandan Kumar

2026 IEEE North-East India International Energy Conversion Conference and Exhibition (NE-IECCE 2026) • NIT Meghalaya, India • 12–14 June 2026

#17“A New Method to Establish Smart Transformer-based Meshed Hybrid ac and dc Distribution Grids”

Chandan Kumar, Sahil Gaurav, Somnath Meikap, and Hitesh Malviya

12th National Power Electronics Conference (NPEC) • NIT Calicut, India • 14–16 Dec. 2025

#18“A Wavelet Transform Approach for Short-Circuit Fault Diagnosis in Smart Transformer-Based Meshed Hybrid Microgrids”

Lakshmi Kant Rao, Sahil Gaurav, and Chandan Kumar

12th National Power Electronics Conference (NPEC) • NIT Calicut, India • 14–16 Dec. 2025

#19“Performance Analysis of Modular Multilevel DC-DC Converter: Impact of Arm Inductors”

Atheeshlal Pallath, Hitesh Malviya, and Chandan Kumar

12th National Power Electronics Conference (NPEC) • NIT Calicut, India • 14–16 Dec. 2025

#20“MPC-Enabled DAB Converter Control to Reduce LVdc Ripple in SST-Based Microgrid”

Somnath Meikap, Hitesh Malviya, Sahil Gaurav, and Chandan Kumar

4th IEEE International Conference on Power Electronics Smart Grid and Renewable Energy (PESGRE) • IIT Dharwad, Hubli, Karnataka, India • 18–21 Dec. 2025

#21“Virtual Oscillator Control-Enabled Unbalanced Fault Ride-Through in Smart Transformer-Based AC Microgrids”

Sahil Gaurav, Lakshmi Kant Rao, and Chandan Kumar

4th IEEE International Conference on Power Electronics Smart Grid and Renewable Energy (PESGRE) • IIT Dharwad, Hubli, Karnataka, India • 18–21 Dec. 2025

#22“Virtual Oscillator based Dual Loop Control for Grid Forming Modular Multilevel Converter”

Hitesh Malviya, Sahil Gaurav, and Chandan Kumar

4th IEEE International Conference on Power Electronics Smart Grid and Renewable Energy (PESGRE) • IIT Dharwad, Hubli, Karnataka, India • 18–21 Dec. 2025

#23“Reverse Startup Procedure for Multi-terminal Smart Transformer Supplying Data Centres”

Anandh N, Dwijasish Das, and Chandan Kumar

2nd IEEE Guwahati Subsection Conference (GCON) • Nirjuli, Arunachal Pradesh, India • 18–20 June 2025

#24“Virtual Oscillator Control of Series-Connected PV Powered Converters for MV Grid Integration”

Sahil Gaurav, Hitesh Malviya, Somnath Meikap and Chandan Kumar

2nd IEEE Guwahati Subsection Conference (GCON) • Nirjuli, Arunachal Pradesh, India • 18–20 June 2025

#25“Asymmetrical PV Power Injection in Modular Multilevel Converter with Battery Energy Storage Systems for Ripple Power Reduction”

Hitesh Malviya, Jose Rodriguez, Chandan Kumar

17th IEEE 2025 - Energy Conversion Congress & Exposition - Asia (ECCE Asia 2025) • Bangalore, India • 11–24 May 2025

#26“Chopper Circuit based DC Voltage Balancing in Neutral Point Clamped Dual Active Bridge Converter”

Perika Mouni Rishitha, Somnath Meikap, Chandan Kumar

17th IEEE 2025 - Energy Conversion Congress & Exposition - Asia (ECCE Asia 2025) • Bangalore, India • 11–24 May 2025

#27“Model Predictive Control based Adaptive Phase Shift Modulation for Neutral Point Clamped Dual Active Bridge Converter System”

Somnath Meikap, Chandan Kumar, Jose Rodriguez

17th IEEE 2025 - Energy Conversion Congress & Exposition - Asia (ECCE Asia 2025) • Bangalore, India • 11–24 May 2025

#28“Double Pancake Spiral Coil based Wireless Power Transfer System for EV Charging”

Akash Vishwakarma, Sahil Gaurav, Chandan Kumar

17th IEEE 2025 - Energy Conversion Congress & Exposition - Asia (ECCE Asia 2025) • Bangalore, India • 11–24 May 2025

#29“Volt/Var Control of Smart Transformer fed Active Distribution Networks”

Arunima Dutta, Sanjib Ganguly, Chandan Kumar

11th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • Mangalore, India, pp. 1–6 • 2024

#30“Model Predictive Control of Solar PV and Battery Converters using Droop Control”

Devendra Kumar, Somnath Meikap, Chandan Kumar, Fernanda Carnielutti and Jose Rodriguez

11th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • Mangalore, India, pp. 1–6 • 2024

#31“AC Short-Circuit Fault Detection and Isolation in Islanded Microgrid”

Lakshmi Kant Rao and Chandan Kumar

11th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • Mangalore, India, pp. 1–6 • 2024

#32“A Finite Control Set Based Model Predictive Control for Reducing Inductor Current Ripple in Dual Active Bridge Converter”

Somnath Meikap, Chandan Kumar, Fernanda Carnielutti and Jose Rodriguez

11th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • Mangalore, India, pp. 1–6 • 2024

#33“MPC Based Phase Angle Adjustment for Optimal Power Transfer in Neutral Point Clamped Dual Active Bridge Converter”

Somnath Meikap, Ram Gopal, Chandan Kumar and Jose Rodriguez

11th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • Mangalore, India, pp. 1–6 • 2024

#34“Inertia Synthesis for AHO Controlled Converters in Smart Transformer Based Distribution Systems”

Sahil Gaurav and Chandan Kumar

11th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • Mangalore, India, pp. 1–6 • 2024

#35“Development of FPGA-based Interface Card for Power Electronic Converter Control”

Hitesh Malviya and Chandan Kumar

11th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • Mangalore, India • 2024

#36“Coded Power Transfer for Power Electronic Converter System”

Visuno Naleo, Hitesh Malviya, Anandh N and Chandan Kumar

11th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • Mangalore, India • 2024

#37“Dual Loop based Andronov-Hopf Oscillator Control of Grid-Connected Photovoltaic Systems”

Sahil Gaurav and Chandan Kumar

50th Annual Conference of the IEEE Industrial Electronics Society (IECON 2024) • Chicago, Illinois, USA • 2024

#38“Smart Transformer Based Ship Microgrid System”

Dwijasish Das and Chandan Kumar

11th National Power Electronics Conference (NPEC) • IIT Guwahati, India • 14–16 Dec. 2023

#39“UPS Operation of Smart Transformer Fed Triple-Active Bridge Converter for Data Centres”

Anandh N, Dwijasish Das and Chandan Kumar

11th National Power Electronics Conference (NPEC) • IIT Guwahati, India • 14–16 Dec. 2023

#40“Model Predictive Control of Isolated Three-Phase Four-Wire Grid Forming Converter”

Devendra Kumar, Chandan Kumar

11th National Power Electronics Conference (NPEC) • IIT Guwahati, India • 14–16 Dec. 2023

#41“LCL-LCL Topology based Resonant Inductive Wireless Power Transfer System”

Sahil Gaurav, Chandan Kumar and Ashish Meena

11th National Power Electronics Conference (NPEC) • IIT Guwahati, India • 14–16 Dec. 2023

#42“Coil Coupling Design for Resonant Inductive Wireless Power Transfer System”

Sahil Gaurav, Chandan Kumar and Ashish Meena

11th National Power Electronics Conference (NPEC) • IIT Guwahati, India • 14–16 Dec. 2023

#43“Operation and Control of Modular Multilevel DC-DC Converter for EV Charging Application”

Sanjay Kumar Sahu, Shwet Prasoon, Sahil Gaurav and Chandan Kumar

11th National Power Electronics Conference (NPEC) • IIT Guwahati, India • 14–16 Dec. 2023

#44“An NPC Based Triple Active Bridge Isolated Converter for Fast Onboard Battery Charger for All Electric Ship”

Somnath Meikap, Chandan Kumar

11th National Power Electronics Conference (NPEC) • IIT Guwahati, India • 14–16 Dec. 2023

#45“An Arduino Based Modular Battery Management System for Protection and Real Time Monitoring of Lithium-Ion Cell”

Somnath Meikap, Nihal Kumar, Chandan Kumar

11th National Power Electronics Conference (NPEC) • IIT Guwahati, India • 14–16 Dec. 2023

#46“Multiport DC Fast EV Charger Based on Modular Multilevel Converter and Quad-Active Bridge”

Hitesh Malviya, Chandan Kumar

11th National Power Electronics Conference (NPEC) • IIT Guwahati, India • 14–16 Dec. 2023

#47“Power Management of a Smart Transformer based Ship Microgrid”

Arunima Dutta, Rampelli Manojkumar, Chandan Kumar

11th National Power Electronics Conference (NPEC) • IIT Guwahati, India • 14–16 Dec. 2023

#48“Virtual Oscillator Control of Smart Transformer based Meshed Low Voltage Distribution Grid”

Sahil Gaurav, Chandan Kumar

2023 IEEE Energy Conversion Congress and Exposition (ECCE) • Nashville, Tennessee, USA • 29 Oct.–2 Nov. 2023

#49“Operation of a New Fault-Tolerant Dual Active Bridge Converter”

Somnath Meikap, Hitesh Malviya, Chandan Kumar

2023 IEEE Energy Conversion Congress and Exposition (ECCE) • Nashville, Tennessee, USA • 29 Oct.–2 Nov. 2023

#50“Performance Enhancement of Quad Active Bridge Converter during Faults”

Somnath Meikap, Hitesh Malviya and Chandan Kumar

49th Annual Conference of IEEE Industrial Electronics Society (IECON) • Singapore • 16–19 Oct. 2023

#51“Hardware Design and Development of Modular Multilevel Converter”

Kumar Mayank, Atul Verma, Somnath Meikap, Chandan Kumar

IEEE CPE-POWERENG • Nordic Hotel Forum, Tallinn, Estonia • 14–16 June 2023

#52“Smart Transformer Enabled Triple-Active Bridge Converter for Modern Data Centres”

Anandh N, Dwijasish Das, Chandan Kumar

22nd National Power Systems Conference (NPSC) • IIT Delhi, India • 17–19 Dec. 2022

#53“Model Predictive Control of Bi-Directional DC-DC Converter for Battery Charger Application”

Devendra Kumar, Chandan Kumar

22nd National Power Systems Conference (NPSC) • IIT Delhi, India • 17–19 Dec. 2022

#54“Coordinated Control of EV Charging Stations in Smart Transformer Based Microgrid”

Sahil Gaurav, Chandan Kumar

22nd National Power Systems Conference (NPSC) • IIT Delhi, India • 17–19 Dec. 2022

#55“Modular Multilevel DC-DC Converter Based EV Battery Charger”

Shwet Prasoon, Sahil Gaurav, Devendra Kumar, Chandan Kumar

IEEE 10th Power Electronics, Drives and Energy Systems (PEDES) • MNIT Jaipur, India • 14–17 Dec. 2022

#56“UPS Operation of Multi-Terminal Smart Transformer for Islanded Operation of Data Centres”

Dwijasish Das, Anandh N, Chandan Kumar

IEEE 10th Power Electronics, Drives and Energy Systems (PEDES) • MNIT Jaipur, India • 14–17 Dec. 2022

#57“Multi Terminal Smart Transformer for Green Data Centres”

Dwijasish Das, Anandh N, Chandan Kumar

IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) • Kiel, Germany • 26–29 June 2022

#58“Optimal Power Management of Multi-Port Converter System in Electric Vehicle Charging Station”

Somnath Meikap, Chandan Kumar, Abhishankar Kumar

IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) • Kiel, Germany • 26–29 June 2022

#59“A Multi-Port Converter System for Grid Tied Electric Vehicle Charging Station”

Somnath Meikap, Dwijasish Das, Chandan Kumar, Giampaolo Buticchi

IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) • Kiel, Germany • 26–29 June 2022

#60“Modelling and Control of Modular Multilevel Converter and Dual Active Bridge Based Fast Electric Vehicle Charger”

Atul Verma, Kumar Mayank, Somnath Meikap, Chandan Kumar

IEEE 4th International Conference on Energy, Power and Environment (ICEPE) • NIT Meghalaya, India • 29 Apr.–1 May 2022

#61“Model Predictive based Coordinated Voltage Control of Active Distribution Networks with Distributed Generation and Electric Vehicles”

Arunima Dutta, Sanjib Ganguly, Chandan Kumar

IEEE 4th International Conference on Energy, Power and Environment (ICEPE) • NIT Meghalaya, India • 29 Apr.–1 May 2022

#62“Single Phase Modular Multilevel Converter for Photovoltaic Application”

Gaureej Gauttam, Hrishikesan V. M. and Chandan Kumar

IEEE 4th International Conference on Energy, Power and Environment (ICEPE) • NIT Meghalaya, India • 29 Apr.–1 May 2022

#63“Smart Transformer as a Variable Frequency Transformer”

Dwijasish Das, Chandan Kumar

6th IEEE Workshop on the Electronic Grid (eGrid 2021) • 8–10 Nov. 2021

#64“Operation and Control of Unified Power Quality Conditioner Enabled Meshed Hybrid Microgrid”

Hrishikesan V M, Devendra Kumar, Dwijasish Das, Chandan Kumar

IEEE 15th International Conference on Compatibility, Power Electronics and Power Engineering (CPEPOWERENG) • Florence, Italy • 14–16 July 2021

#65“Dynamic Voltage Control Using Unified Power Quality Conditioner with Storage”

Hrishikesan V M, Devendra Kumar, Chandan Kumar

IEEE 15th International Conference on Compatibility, Power Electronics and Power Engineering (CPEPOWERENG) • Florence, Italy • 14–16 July 2021

#66“Coordinated Voltage Control of Active Distribution Network in presence of PV and Energy Storage System”

Arunima Dutta, Sanjib Ganguly, Chandan Kumar

12th IEEE 2021 - Energy Conversion Congress & Exposition - Asia (ECCE Asia 2021) • Singapore • 24–27 May 2021

#67“Optimal Placement of Smart Transformer Low Voltage Converter in Meshed Hybrid Distribution Network”

Chandan Kumar, Rampelli Manojkumar, Sanjib Ganguly

12th IEEE 2021 - Energy Conversion Congress & Exposition - Asia (ECCE Asia 2021) • Singapore • 24–27 May 2021

#68“Optimal Power Management for Islanded Operation of ST-based Meshed Hybrid LV Microgrid”

Dwijasish Das, Rampelli Manojkumar, Chandan Kumar, Sanjib Ganguly

12th IEEE 2021 - Energy Conversion Congress & Exposition - Asia (ECCE Asia 2021) • Singapore • 24–27 May 2021

#69“Optimal Demand Response Using Dynamic Electricity Price Limit in a Hybrid AC/DC System”

Rampelli Manojkumar, Chandan Kumar, Sanjib Ganguly

21st National Power Systems Conference (NPSC) • IIT Gandhinagar, India • 17–19 Dec. 2020

#70“Improved Power Sharing and Voltage Regulation with Modified Droop Control in Microgrid”

Sourav Kumar Ghosh, Chandan Kumar

21st National Power Systems Conference (NPSC) • IIT Gandhinagar, India • 17–19 Dec. 2020

#71“Multifunctional Model Predictive Control of Grid Connected Voltage Source Converter”

Devendra Kumar, Dwijasish Das, Chandan Kumar

9th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • MNIT Jaipur, India • 16–17 Dec. 2020

#72“Partial Start-up Scheme for ST to Reconnect to MV Grid from LV Side Islanded Operation”

Dwijasish Das, Chandan Kumar

9th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • MNIT Jaipur, India • 16–17 Dec. 2020

#73“Model Predictive Control based Coordinated Voltage Control in Active Distribution Network utilizing OLTC and DSTATCOM”

Arunima Dutta, Sanjib Ganguly, Chandan Kumar

9th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • MNIT Jaipur, India • 16–17 Dec. 2020

#74“BESS-PV Integrated Islanded Operation of ST-based Meshed Hybrid Microgrid”

Dwijasish Das, Hrishikesan V M, Chandan Kumar

9th IEEE International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia) • Nanjing, China • 29 Nov.–2 Dec. 2020

#75“Control and Sizing of Smart Transformer in Distribution Grid”

Chandan Kumar, Hrishikesan V M, Dwijasish Das, Sourav Kumar Ghosh

9th IEEE International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia) • Nanjing, China • 29 Nov.–2 Dec. 2020

#76“Smart Transformer Based Meshed Hybrid Microgrid with MVDC Interconnection”

Hrishikesan V M and Chandan Kumar

46th Annual Conference of IEEE Industrial Electronics Society (IECON) • Singapore • 18–21 Oct. 2020

#77“Power Loss Minimization in Smart Transformer Based Meshed Hybrid Distribution Network”

Chandan Kumar, Rampelli Manojkumar, Sanjib Ganguly, Marco Liserre

46th Annual Conference of IEEE Industrial Electronics Society (IECON) • Singapore • 18–21 Oct. 2020

#78“Voltage Control Using Smart Transformer for Increasing Photovoltaic Penetration in a Distribution Grid”

Rampelli Manojkumar, Hrishikesan V M, Chandan Kumar, Sanjib Ganguly

20th IEEE International Conference on Intelligent System Application to Power Systems (ISAP) • IIT Delhi, New Delhi, India • 10–14 Dec. 2019

#79“Voltage Control in Active Distribution Networks and an Approach based on Model Predictive Control”

Arunima Dutta, Sanjib Ganguly, Chandan Kumar

8th International Conference on Power Systems (ICPS) • Jaipur, India • 20–22 Dec. 2019

#80“A New Single-Phase Single Source Nine Level Boost Inverter Topology”

Marif Daula Siddique, Saad Mekhilef, Noraisyah Mohamed Shah, Chandan Kumar

45th Annual Conference of the IEEE Industrial Electronics Society (IECON2019) • Lisbon, Portugal • 14–17 Oct. 2019

#81“Smart Transformer-based Hybrid LVAC and LVDC Interconnected Microgrid”

Dwijasish Das, Hrishikesan V M, Chandan Kumar

4th IEEE Southern Power Electronics Conference (SPEC) • Nanyang Technological University, Singapore • 10–13 Dec. 2018

#82“A Flexible and Coordinated Voltage Control Strategy for Smart Transformer”

Hrishikesan V M, Dwijasish Das, Chandan Kumar

8th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • IIT Madras, Chennai, India • 18–21 Dec. 2018

#83“Flexible Power Transfer in Smart Transformer Interconnected Microgrids”

Hrishikesan V M, Chandan Kumar, Marco Liserre

44th Annual Conference of the IEEE Industrial Electronics Society (IECON2018) • Washington DC, USA • 21–23 Oct. 2018

#84“Smart Transformer Based Loop Power Controller in Radial Power Distribution Grid”

Chandan Kumar, Xiang Gao, Marco Liserre

8th IEEE PES Innovative Smart Grid Technologies Conference Europe • Sarajevo, Bosnia and Herzegovina • 21–25 Oct. 2018

#85“Operation and Control of Smart Transformer Based Distribution Grid in a Microgrid System”

Dwijasish Das, Chandan Kumar

8th National Power Electronics Conference (NPEC) • Pune, India • Dec. 2017

#86“Power Management in a ST Integrated Medium Voltage Grid”

Hrishikesan V M, Chandan Kumar

8th National Power Electronics Conference (NPEC) • Pune, India • Dec. 2017

#87“Voltage Quality Improvement in Smart Transformer Integrated Distribution Grid”

Hrishikesan V M, Chandan Kumar, Marco Liserre

43rd Annual Conference of the IEEE Industrial Electronics Society (IECON2017) • Beijing, China • Oct./Nov. 2017

#88“Investigation of Load Compensation Features of Smart Transformer in Medium Voltage Grid”

Chandan Kumar, Rongwu Zhu, Marco Liserre

43rd Annual Conference of the IEEE Industrial Electronics Society (IECON2017) • Beijing, China • Oct./Nov. 2017

#89“Operation and Control of Smart Transformer-based Electric Vehicles Charging System”

Chandan Kumar, Giampaolo Buticchi, Marco Liserre

43rd Annual Conference of the IEEE Industrial Electronics Society (IECON2017) • Beijing, China • Oct./Nov. 2017

#90“Smart Transformer Application for Improving Performance of Loads in Partial Disconnection of MV/HV Power System”

Chandan Kumar, Zhixiang Zou, Marco Liserre

Annual IEEE Energy Conversion Congress & Exposition (ECCE 2016) • Milwaukee, Wisconsin, USA • 18–22 Sept. 2016

#91“LCL Filter Based UPQC Configuration for Power Quality Improvement”

Chandan Kumar, Mahesh K. Mishra, Marco Liserre

IEEE Power and Energy Society General Meeting (PESGM) • Boston, MA, USA • 17–21 July 2016

#92“A New Prospective of Smart Transformer application: Dual Microgrid (DMG) Operation”

Chandan Kumar, Marco Liserre

41st Annual Conference of the IEEE Industrial Electronics Society (IECON2015) • Yokohama, Japan • Nov. 2015

#93“Smart Transformer for Improving Performance of Medium Voltage Power Distribution System”

Chandan Kumar, Marco Liserre

6th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG2015) • Aachen, Germany • June 2015

#94“A Control Scheme to Enhance DSTATCOM Operation in Power Distribution System”

Chandan Kumar, Mahesh K Mishra, M. V. Manoj Kumar

6th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG2015) • Aachen, Germany • June 2015

#95“Enhanced Utilization of Grid-Connected Inverter”

Chandan Kumar, Mahesh K Mishra, M. V. Manoj Kumar

6th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG2015) • Aachen, Germany • June 2015

#96“A Dual Three-leg VSI Based DSTATCOM in Three Phase Four-Wire Distribution Systems”

M. V. Manoj Kumar, Mahesh K Mishra, Chandan Kumar

6th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG2015) • Aachen, Germany • June 2015

#97“Dual-functional DSTATCOM with flexible mode transfer for power quality improvement”

Chandan Kumar, Mahesh K Mishra

IEEE Power and Energy Society General Meeting (PESGM) • Washington DC, USA, pp. 1–5 • July 2014

#98“A multi-functional DSTATCOM operating in voltage control mode”

Chandan Kumar, Mahesh K Mishra

IEEE International Conference on Industrial and Information Systems (ICIIS) • Kandy, Sri Lanka, pp. 271–276 • Dec. 2013

#99“Energy conservation and power quality improvement with voltage controlled DSTATCOM”

Chandan Kumar, Mahesh K Mishra

IEEE Annual India Conference (INDICON) • IIT Bombay, India, pp. 1–6 • Dec. 2013

#100“A modified DSTATCOM topology with reduced VSI rating, dc link voltage, and filter size”

Chandan Kumar, Mahesh K Mishra

IEEE International Conference on Clean Electrical Power (ICCEP) • Alghero, Italy, pp. 325–331 • June 2013

#101“A control algorithm for flexible operation of DSTATCOM for power quality improvement in voltage and current control mode”

Chandan Kumar, Mahesh K Mishra

IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) • IISc Bangalore, India, pp. 1–6 • Dec. 2012

#102“Digital feedback control based dynamic voltage compensator for voltage sag mitigation: simulation and experimental validation”

S Srinath, Chandan Kumar, M P Selvan

IEEE International Conference on Industrial and Information Systems (ICIIS) • IIT Madras, India, pp. 1–6 • Aug. 2012

#103“Dynamic voltage compensator: transformation less control perspective”

S Srinath, Chandan Kumar, M P Selvan

IEEE PES Conference on Innovative Smart Grid Technologies (ISGT) • Kerala, India, pp. 65–70 • Dec. 2011

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Past Members

Smart Energy Conversion Laboratory • Alumni Directory by Role

Post-Doctoral Fellow (PDF)

#1
Nikita Ramchandra
Nikita RamchandraBatch: 2025–2026
PDF

PhD Alumni

#1
Hrishikesan V. M.
Hrishikesan V. M.Batch: 2015–2021
PhD
#2
Arunima Dutta
Arunima DuttaBatch: 2017–2022
PhD
#3
Rampelli Manoj Kumar
Rampelli Manoj KumarBatch: 2017–2023
PhD
#4
Dwijasish Das
Dwijasish DasBatch: 2015–2023
PhD

M.Tech Alumni

#1
Mohit Shekar Chaudhari
Mohit Shekar ChaudhariBatch: 2018–2020
M.Tech
#2
Gaureej Gauttam
Gaureej GauttamBatch: 2019–2021
M.Tech
#3
Ayush Mathur
Ayush MathurBatch: 2019–2021
M.Tech
#4
Anurag Lalitkumar Laumas
Anurag Lalitkumar LaumasBatch: 2019–2021
M.Tech
#5
Abhinav Singh Rao
Abhinav Singh RaoBatch: 2019–2021
M.Tech
#6
Atul Verma
Atul VermaBatch: 2020–2022
M.Tech
#7
Kumar Mayank
Kumar MayankBatch: 2020–2022
M.Tech
#8
Praveen Nath
Praveen NathBatch: 2021–2023
M.Tech
#9
Ashish Meena
Ashish MeenaBatch: 2021–2023
M.Tech
#10
Sanjay Kumar Sahu
Sanjay Kumar SahuBatch: 2021–2023
M.Tech
#11
Akash Vishwakarma
Akash VishwakarmaBatch: 2022–2024
M.Tech
#12
Ram Gopal
Ram GopalBatch: 2022–2024
M.Tech
#13
Visuno Naleo
Visuno NaleoBatch: 2022–2024
M.Tech
#14
Perika Mouni Rishitha
Perika Mouni RishithaBatch: 2023–2025
M.Tech
#15
Atheeshlal Lalsan Pallat
Atheeshlal Lalsan PallatBatch: 2023–2025
M.Tech
#16
Vikas Pal
Vikas PalBatch: 2024–2026
M.Tech
#17
Drashti Girishkumar Doshi
Drashti Girishkumar DoshiBatch: 2024–2026
M.Tech

B.Tech Alumni

#1
Banothu Vijender
Banothu VijenderBatch: 2015–2019
B.Tech
#2
Yerikipati Venkata Naga Saran
B.Tech
#3
Mukesk Kumar Meena
Mukesk Kumar MeenaBatch: 2016–2020
B.Tech
#4
Sachin Raj
Sachin RajBatch: 2016–2020
B.Tech
#5
Akash Pandauriya
Akash PandauriyaBatch: 2016–2020
B.Tech
#6
Rishabh Sethi
Rishabh SethiBatch: 2017–2021
B.Tech
#7
Arsh Singla
Arsh SinglaBatch: 2017–2021
B.Tech
#8
Gaurav Kumar
Gaurav KumarBatch: 2017–2021
B.Tech
#9
Naman Jain
Naman JainBatch: 2017–2021
B.Tech

Project Staff

#1
Gaddala Ravi Kumar
Gaddala Ravi KumarFormer Research Project Staff
Project Staff
#2
Gaurav Gautam
Gaurav GautamFormer Research Project Staff
Project Staff
#3
Anup Kumar Deka
Anup Kumar DekaFormer Research Project Staff
Project Staff
#4
Surya Prakash Bharti
Surya Prakash BhartiFormer Research Project Staff
Project Staff
#5
Abhay Pathak
Abhay PathakFormer Research Project Staff
Project Staff
#6
Sweta Kumari
Sweta KumariFormer Research Project Staff
Project Staff

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Experimental Setups & Research Facilities

Smart Energy Conversion Laboratory (SECL) • Department of EEE, IIT Guwahati • Click any setup row to expand/collapse or click any image to zoom

Expand All (10) Collapse All
#1 Smart Transformer-Based AC Microgrids
Name – Sahil Gaurav, PhD Student ▾

The experimental setup is developed for the real-time implementation and validation of advanced control strategies for smart transformer (ST)-based AC microgrids. The setup comprises a smart transformer with medium-voltage (MV) and low-voltage (LV) power converter stages, two distributed generation (DG) converters, configurable load banks, interfacing filters, and a DC power supply. The ST LV converter operates as the primary grid-forming unit to establish and regulate the voltage and frequency of the AC microgrid, while the DG converters enable the integration and coordinated operation of distributed energy resources.

A dSPACE MicroLabBox real-time controller is employed to implement converter control algorithms, signal acquisition, and switching signal generation. The modular configuration of the setup facilitates experimental investigation of grid-forming and grid-following control, power sharing, virtual inertia, fault ride-through, protection, and dynamic performance of converter-dominated AC microgrids under different load and generation conditions.

Smart Transformer-Based AC Microgrids — Schematic Diagram
Schematic Diagram Schematic • Click to Zoom
Smart Transformer-Based AC Microgrids — Experimental Setup
Experimental Setup Hardware Setup • Click to Zoom

Name – Sahil Gaurav, PhD Student

#2 Smart Transformer Enabled Data Centre Power Delivery Infrastructure
Name - Anandh N., PhD Student ▾

Development of power electronics provide efficient solutions for power supply in data centres. To deliver power from medium voltage (MV) utility grid to low voltage (LV) ac/dc loads in data centres, smart transformer (ST) is a popular choice. In ST, the number of cascaded power conversion stages is considerably reduced, resulting in lesser complexity, lower losses, higher reliability and higher power density of data centre power supplies.

The smart transformer is a power electronic transformer constructed using various power converters namely medium-voltage (MV) converter, dual-active bridge (DAB) converter and low-voltage (LV) converter along with auxiliary circuits and components in the laboratory. The ST-MV converter is realized with a SEMIKRON voltage source converter. All the voltages and currents necessary for monitoring and control were sensed with a 20 channel transducer circuit fabricated in the laboratory. The signals from the transducer circuit were fed to a 16 channel signal conditioning circuit to make them suitable for the analog to digital converter (ADC) of the ezDSP-F28335 digital controller which is used to control the converter. For the ST isolated dc-dc stage, a DAB converter is developed with a power rating of 1.5 kW used to supply the critical loads of data centre. The circuit consists of eight IGBTs, four on the primary and four on the secondary side linked with a high frequency isolation transformer. The PCB is designed with sensors, protection and delay generation circuits for the proper operation of the converter. The SEMIKRON voltage source converter is used as the ST-LV converter which draws power from the LVdc bus, maintained by the ST-DAB converter and supplies the data centre ac loads.

Experimental setup for Smart Transformer based Data Centre (Hardware)
Experimental setup for Smart Transformer based Data Centre. Hardware Setup • Click to Zoom
Experimental setup for Smart Transformer based Data Centre (Architecture)
Experimental setup for Smart Transformer based Data Centre. Schematic • Click to Zoom

Name - Anandh N., PhD Student

#3 Renewable and Storage Enabled Modular Multilevel Converter
Name – Hitesh Malviya, PhD Student ▾

The long-term objective of this research is to develop a Modular Multilevel Converter (MMC)-based architecture that supports the integration of photovoltaic (PV) sources and battery energy storage systems (BESS) within selected submodules (SMs). Such an approach is expected to reduce the number of power conversion stages, improve efficiency, and provide additional grid-support functionalities. As an initial step toward this objective, a three-phase MMC hardware prototype has been developed and successfully made operational.

Technical Insight: The developed 4 kW MMC consists of full-bridge submodules employing IGBT switches. FOD3182 gate drivers are used for switch control, with an RCD snubber provided across each switch for protection. Each SM is equipped with an LV25-P voltage sensor and overvoltage protection circuitry. A dedicated digital interface board based on the Xilinx ZedBoard has been designed for real-time control, modulation, measurement, and interfacing of the MMC.

Number of SM per arm 3
Nominal SM voltage 200
Filter inductance 15 mH
Arm inductance 1.7 mH
SM capacitance 1.88 mF
Nominal virtual DC link voltage 600 V
Fig. MMC Hardware Setup
Fig. MMC Hardware Setup Hardware Setup • Click to Zoom
Fig. Renewable and storage energy integrated MMC for ST
Fig. Renewable and storage energy integrated MMC for ST Schematic • Click to Zoom
Fig. Structure of MMC based ST integrating PV and BESS
Fig. Structure of MMC based ST integrating PV and BESS Schematic • Click to Zoom

Name – Hitesh Malviya, PhD Student

#4 Voltage Balancing in Modular Multilevel DC-DC Converter
Name – Saish Nitin Kamble, M.Tech Student ▾

The experimental setup consists of a three-submodule Modular Multilevel DC–DC Converter (MMC) with series arm inductors, developed for investigating capacitor-voltage balancing and circulating-current suppression.

Each submodule incorporates an IGBT-based H-bridge, capacitor, gate-driver, protection, snubber, and voltage-sensing circuits. A TMS320F28335 DSP generates the required PWM switching signals, while voltage and current feedback is conditioned and supplied to the DSP through its ADC channels.

A three-phase AC source is applied to an autotransformer, followed by a rectifier to obtain the required DC-link voltage. A 4700 µF bulk capacitor stabilizes the DC bus, while an auxiliary isolated supply powers the control and gate-driver circuits. The converter output is connected to a varistor load through an MCB.

A DSO and host PC are used for waveform observation and monitoring.

Voltage Balancing in Modular Multilevel DC-DC Converter — Schematic
Schematic Diagram Schematic • Click to Zoom
Voltage Balancing in Modular Multilevel DC-DC Converter — Hardware Setup
Experimental Setup Hardware Setup • Click to Zoom

Name – Saish Nitin Kamble, M.Tech Student

#5 Short-Circuit Fault Detection and Isolation in ST-based Hybrid Microgrids
Name - Lakshmi Kant Rao, PhD Student ▾

The schematic of the ST-based meshed hybrid MG is shown in Fig. 1. The three-stage ST comprises an MV-side converter, an isolated DC–DC conversion stage, and an LV-side converter. The MV converter interfaces the ST with the medium-voltage ac network and maintains the MV dc-link voltage. The isolated DC–DC stage transfers power between the two dc buses while regulating the LV dc-link voltage. Finally, the LV converter operates as a controlled voltage source and provides grid-forming (GFM) functionality to the LV AC network. To supply the local loads and support the ST LV converter, DG units are connected to the MG and operated in grid-following (GFL) mode.

Unlike Conventional power transformers (CPTs), smart transformers (STs) can provide fast voltage and power regulation in LVac and MVac grids while maintaining power quality. However, these converter-dominated microgrids pose challenges for reliable short-circuit fault detection and isolation. Conventional overcurrent and directional overcurrent protection schemes become less reliable due to the limited short-circuit current capability of converters and bidirectional power flow. These methods rely on multiple sensors and high-speed communication, increasing system complexity and cost.

The objective of this work is to develop a protection scheme for converter-dominated meshed hybrid MGs that can detect and classify ac short-circuit faults with reduced sensor requirements, low dependence on fault-current magnitude, and no communication requirement. In addition, the scheme aims to achieve fast and selective isolation of the faulty section while maintaining continuity of supply to the healthy sections of the MG.

Figure 1(a) Circuit configuration of experimental setup.
Figure 1(a) Circuit configuration of experimental setup. Schematic • Click to Zoom
Figure 1(b) Picture of the experimental setup of the ST-based hybrid microgrid.
Figure 1(b) Picture of the experimental setup of the ST-based hybrid microgrid. Hardware Setup • Click to Zoom

Name - Lakshmi Kant Rao, PhD Student

#6 UPQC (Multifunctional DC-AC converter), Electric Vehicle Charger and Solar Photovoltaic
Name – Devendra Kumar, PhD Student ▾

The operation of a meshed hybrid microgrid is realized using UPQC.

The dc link of UPQC is used to form a low voltage dc (LVdc) line.

The LVdc line is connected parallel to the low voltage ac (LVac) lines.

The loads and distribution generation units are integrated to ac and dc lines using power electronic converters.

UPQC (a) Schematic Diagram
(a) Schematic Diagram Schematic • Click to Zoom
UPQC (b) Experimental Setup (Labeled)
(b) Experimental Setup Hardware Setup • Click to Zoom
UPQC Complete Laboratory Bench
Complete Laboratory Testbed Hardware Setup • Click to Zoom

Name – Devendra Kumar, PhD Student

#7 AC-AC MMC-based single-stage high-power conversion for wireless power transfer
Name - Nilutpal Sarma, PhD Student ▾

An AC-AC modular multilevel converter-based single-stage high-power conversion for wireless power transfer system is proposed. The MMC is connected to the low-frequency (LF) MVAC grid and the output is connected to a medium-frequency (MF) AC load. By eliminating the intermediate DC-link, the system size can be reduced.

Features

  • Single-stage power conversion can be more energy efficient for high-power conversion due to a reduced number of conversion stages.
  • Direct AC-AC conversion systems require less capacitor-based structure, which increases the power density and reliability of the system.
  • AC-AC MMC can provide independent voltage and frequency control at the output for multiple loads.
  • Modular structure provides scalability and redundancy to the system.
AC-AC MMC-based single-stage high-power conversion for wireless power transfer — Schematic
System Schematic (MMC & RIWPT) Schematic • Click to Zoom
AC-AC MMC-based wireless power transfer — Experimental Setup
Experimental Setup (3-phase MMC, Coupling coils & Arm inductors) Hardware Setup • Click to Zoom

Name - Nilutpal Sarma, PhD Student

#8 NPC-DAB Converter
Name – Somnath Meikap, PhD Student ▾
  • NPC DAB is operated using a DSP F28379D.
  • A signal conditioning is used to convert ac signal in the sensors to shifted DC signal for DSP.
Fig. Block Diagram NPC-DAB hardware setup.
Fig. Block Diagram NPC-DAB hardware setup. Block Diagram • Click to Zoom
Fig. Picture of complete NPC-DAB hardware setup, (a) NPC Bridge, (b) H bridge, (c) High Frequency Transformer, (d) Voltage and current sensors.
Fig. Picture of complete NPC-DAB hardware setup, (a) NPC Bridge, (b) H bridge, (c) High Frequency Transformer, (d) Voltage and current sensors. Hardware Setup • Click to Zoom

Name – Somnath Meikap, PhD Student

#9 Multilevel Multi-port Converter for Electric Vehicle Charging Stations
Name – Sumit Kumar, PhD Student ▾

Motivation for Multilevel Multi-port Converter:

A multilevel multi-port converter can integrate multiple energy sources, such as solar PV, battery storage, and EV charging stations, thereby improving energy utilization and overall efficiency. It can also balance power losses between the inner and outer switches, which helps to improve system efficiency and reliability. In addition, effective fault diagnosis and mitigation are important for maintaining stable operation and avoiding unexpected system shutdowns.

Objectives:

  • To develop an integrated and high-speed control method capable of coordinating multilevel multi-port converter systems alongside associated DC–DC and DC–AC converters, to improve dynamic response, minimize control delays, and ensure stable, efficient operation under varying load and source conditions.
  • To develop an advanced, low-passive-component fault detection and diagnosis architecture for multilevel multi-port converters that enables rapid, accurate, and real-time identification of system abnormalities, thereby enhancing reliability, operational safety, and resilience under dynamic operating conditions.

To develop advanced, unified control algorithms for multi-port converter systems that can simultaneously coordinate renewable energy sources and battery storage across multiple DC links, thereby enabling optimized real-time power flow, improved energy utilization, and enhanced operational efficiency for EV charging infrastructures.

System Description: The overall block diagram of the system is shown in Fig. (a), and the circuit diagram of the Neutral Point Clamped Triple Active Bridge (NPC-TAB) converter is shown in Fig. (b). The NPC-TAB converter consists of one NPC bridge on the primary side and two full-bridges on the secondary side, which are connected through a galvanically isolated three-winding high-frequency transformer. The NPC bridge is connected to an MVdc link and both full bridges are connected to different LVdc buses to maintain the converters output voltage.

Fig. (a) Block Diagram — Multilevel Multi-port Converter
(a) Block Diagram Block Diagram • Click to Zoom
Fig. (b) Circuit Diagram — Neutral Point Clamped Triple Active Bridge (NPC-TAB)
(b) Circuit Diagram Circuit Diagram • Click to Zoom

Name – Sumit Kumar, PhD Student

#10 Experimental Setup for Single Phase Smart Transformer for Low Voltage Distribution system
Name – Visuno Naleo, PhD Student ▾

The experimental set up is developed to implement and validate control schemes for single-phase based smart transformer (ST) for low voltage distribution network. The setup consist of MV and LV converter stages and two DG converters, loads, interfacing filters and DC power supply. A dSPACE MicroLabBox is used for real-time control implementation and PC for monitoring the real-time control signals.

Single Phase Smart Transformer — Schematic Diagram
Schematic Diagram Schematic • Click to Zoom
Single Phase Smart Transformer — Converter Stages and Load Rack
Converter Stages & Load Rack Hardware Setup • Click to Zoom
Single Phase Smart Transformer — dSPACE MicroLabBox and Host PC Monitoring
dSPACE MicroLabBox & PC Monitoring Hardware Setup • Click to Zoom

Name – Visuno Naleo, PhD Student

               

Research Projects

Sponsored Research, Fellowship & Innovation Projects (16 Projects)

#1“Exploring performance of PV and energy storage integrated modular multilevel converter (MMC)”

Coordinator: Dr. Chandan Kumar (PI), Dr. Sanjib Ganguly (co-PI)

Sponsoring Agency: ANRF-ARG • Amount: 68,77,640 Rupees • Duration: 2025–28

#2Recipient of Research Group Linkage Programme supported by Alexander von Humboldt Foundation for 55,000 EURO

Sponsoring Agency: Alexander von Humboldt Foundation • Amount: 55,000 EURO • Duration: 2023–26

#3“Investigation and Exploration of Smart Transformer Based ship microgrid systems”

Coordinator: Dr. Chandan Kumar (PI), Dr. Sanjib Ganguly (co-PI)

Sponsoring Agency: TIH • Amount: 23.30 lakhs Rupees • Duration: 2023–25

#4“Development of Modular Multilevel dc-dc Converter for Electric Vehicles Charging”

Coordinator: Dr. Chandan Kumar (mentor) with students Shwet Prasoon and Sahil Gaurav

Sponsoring Agency: NEWGEN IEDC • Amount: 2.5 lakhs Rupees • Duration: 2023–24

#5Received IIT Guwahati Research Concept Grand Challenge Award 2022: Amount 2 lakhs Rupees.

IIT Guwahati Research Concept Grand Challenge Award • Amount: 2 lakhs Rupees • 2022

#6“Development of smart transformer based electric vehicle charging station with high PV penetration”

Coordinator: Dr. Chandan Kumar (PI), Dr. Sanjib Ganguly (co-PI)

Sponsoring Agency: SERB • Amount: 28,71,264 Rupees • Duration: 2022–26

#7“Development of Digital Twin for PEM fuel cell-battery hybrid energy system for vehicular applications”

Coordinator: Dr. Sanjib Ganguly (PI), Dr. Chandan Kumar (co-PI)

Sponsoring Agency: SERB • Amount: 28,66,900 Rupees • Duration: 2023–26

#8“Smart Transformer enabled hybrid grid for efficient and green data centers”

Coordinator: Dr. Chandan Kumar (mentor) with student Dwijasish Das

Sponsoring Agency: Intel India Research Fellowship Program 2021 • Amount: 7.50 lakh Rupees • Duration: 2021–22

#9“Development of a SiC-based highly efficient fault-tolerant multi-port power converter for automotive application”

Coordinator: Dr. Chandan Kumar (mentor) with students Somnath Meikap and Kumar Mayank

Sponsoring Agency: NEWGEN IEDC • Amount: 2.5 lakhs Rupees • Duration: 2022–2023

#10“Design, operation, and control of distributed generation (DG) integrated unified power quality conditioner (UPQC) in electric grid”

Coordinator: Dr. Chandan Kumar (PI), Dr. Ravindranath Adda

Sponsoring Agency: CPRI • Amount: 32.28 lakh Rupees • Duration: 2019–2021 Status: Ongoing

#11“Design, control and management of distributed generation in microgrid”

Coordinator: Dr. Chandan Kumar • Collaborator: Prof. Saad Mekhilef (University of Malaya, Malaysia) and Prof. HB Gooi (Nanyang Technological University, Singapore)

Sponsoring Agency: ASEAN-India Science & Technology Development Fund (AISTDF) • Amount: 21.52 lakh Rupees • Duration: 2018–2020 Status: Completed

#12“Design, Operation and Control of Smart Transformer-based Microgrid System”

Coordinator: Dr. Chandan Kumar

Sponsoring Agency: Department of Science and Technology, India • Amount: 52.82 lakh Rupees • Duration: 2018–2021 Status: Completed

#13“Development of Energy Management Strategies for Smart Transformer Based Microgrid System”

Coordinator: Dr. Chandan Kumar

Sponsoring Agency: Ministry of Electronics and Information Technology, India • Amount: 37 lakh Rupees • Duration: 2018–2023 Status: Completed

#14“Operation and control of parallel power converters for stable, efficient and continuous operation of electric grid”

Coordinator: Dr. Chandan Kumar

Sponsoring Agency: Indian Institute of Technology Guwahati, Guwahati, India • Amount: 10 lakh Rupees • Duration: 2018–2020 Status: Ongoing

#15“Design and Prototype Development of Efficient Wind-Driven Doubly Fed Induction Generator-PV Hybrid System with Smart Controller for Reliable Supply to Isolated Loads”

Coordinator: Dr. Vijayakumar K (Principal Investigator at NIT Jaipur, India), Prof. R A Gupta, Dr. C Periasamy, Dr. Chandan Kumar

Sponsoring Agency: Ministry of New and Renewable Energy, India • Amount: 30.53 lakh Rupees • Duration: 2017–2020 Status: Completed

#16“Development of Multifunctional Grid Connected Inverter”

Coordinator: Dr. Chandan Kumar

Sponsoring Agency: Indian Institute of Technology Guwahati, Guwahati, India • Amount: 5.00 lakh Rupees • Duration: 2015–2016 Status: Completed

People

Chandan Kumar

Associate Professor
Email: chandank@iitg.ac.in

Satyavarta Kr Prince

PDF
Email: skprince2509@iitg.ac.in

Devendra Kumar

PhD
Email: devendrak@iitg.ernet.in

Somnath Meikap

PhD
Email: somnath_meikap@iitg.ac.in

Lakshmi Kant Rao

PhD
Email: lakshmi@iitg.ac.in

Anandh N

PhD
Email: anandh_n@iitg.ac.in

Sahil Gaurav

PhD
Email: sahilgaurav@iitg.ac.in

Hitesh Malviya

MS+PhD
Email: m.hitesh@iitg.ac.in

Sumit Kumar

PhD
Email: sumitk2118@iitg.ac.in

Nilutpal Sarma

PhD
Email: s.nilutpal@iitg.ac.in

Visuno Naleo

PhD
Email: visuno@iitg.ac.in

MANOJ DAHAL

PhD
Email: m.dahal@iitg.ac.in

Surendra Sukhadeve

PhD
Email: surendrasukh@iitg.ac.in

Sonal

PhD
Email: sonal1@iitg.ac.in

SAISH NITIN KAMBLE

M.Tech
Email: k.saish@iitg.ac.in

Abhishek Gupta

Project Staff
Email: abhishek01@rnd.iitg.ac.in

Contact Address