C UPENDRA REDDY
Contact Information:
Phone: 08011097437
07382315384
E-mail id:
cp.reddy@iitg.ac.in
uppi.251@gmail.com
uppi.251252@gmail.com
Permanent Address:
S/O C VISWANATHA REDDY,
MADUR (Vig)&(Post),
CHAPADU (Mandal),
KADAPA (Dist),
Pin:516362,
ANDHRA PRADESH.
CURRICULUM VITAE
Career Objective
To work hard in a challenging environment that uses my skills
and knowledge to the best in order to achieve organizational goals and
leads to success, which provides opportunities to learn and to develop
innovative skills and accomplish my goals.
Academic record
Currently working toward the Ph.D. degree at Indian Institute of
Technology Guwahati , India from 2013
M.TECH 2011
Institute Of Technology Banaras Hindu University
Electrical Machines And Drives
C.G.P.A: 8.05
B.TECH (EEE) 2008
Jawaharlal Nehru Technological University HYD
Sree Kalahastheeswara Institute of Technology, Srikalahasthi.
Aggregate: 73.14%
Intermediate (M.P.C) 2003
Board Of Intermediate Education
Ravindra Residential Junior College, Kurnool.
Aggregate: 83.1%
Technical skills
Simulation: MATLAB.
Programming: Verilog , HMI, SCADA (intouch, Rs view32 ),
Plc Programming: ALLEN BRADLEY,GE ,SIEMENS
DCS ( S7- 400, ABB (AC-700F))
Drives: SIEMENS, DANFOSS, ABB
Area of Interest
Power Electronics , and Control of Induction motor Drives
Personal Data:
Name :C. Upendra Reddy
Father :C.Viswanatha Reddy
Sex : Male
Nationality : Indian
Marital Status : Single
Languages Known to speak
and write: English, Telugu,
Hindi.
Hobbies: Playing Basket Ball,
Shuttle, listening music and
watching movies.
Academic Project
PhD Project Title :- Performance evaluation of Direct
Torque Control Of Induction Motor.
Description: Direct torque control is a method of variable speed
operation, which enables simple control of high performance
induction motor drives. This is still a rather novel and attractive
research area where a lot of work remains to be done. The main aim of
this work is to attempt to achieve an improvement over the
existing solutions by analyzing and solving some of the existing
problems. The specific objectives of the research work are:
1. Investigation of various flux linkage estimation methods
suitable for direct torque control of induction machines.
2. Investigation of the impact of torque error status selection
methods on direct torque control and analysis of suitable
means for the compensation of ripples.
3. Investigation of speed estimation schemes suitable for sensor-
less direct torque control of induction machines in the speed
mode of operation.
4. Realization of an experimental setup for investigation of
performance of direct torque control induction motor drive.
M.Tech Project Title :- Torque Ripple Reduction In Direct
Torque Control Of Induction Motor.
Description: Direct torque control
(DTC) of an induction motor fed
by a voltage source
inverter is a simple scheme that does not need long
computation time, can be implanted without mechanical speed sensors
and is less sensitive to parameter variations. In principle, the motor
terminal voltages and currents are sampled and used to estimate the motor
flux, torque and speed. Based on estimates of the flux position and the
instantaneous errors in torque and stator flux magnitude, a voltage vector
is selected to restrict the torque and the flux errors within their respective
torque and flux hysteresis bands.
In the conventional DTC, the selected voltage vector is
applied is applied for the whole switc
hing period regardless of the
magnitude of the torque error, this can result in high torque ripple and the
other reason for high torque ripple is low number voltage vectors
applied to the motor by the conventional DTC technique. By using the
SVM-DTC methodology, the six non-zero voltage vectors of the
standard voltage source inverter topology are divided into equal fraction
of these vectors is applied to the motor depending on the amount of the
torque error and in accordance with the conventional DTC scheme
basics. Thus torque ripple is reduced.
B.Tech Project Title: Simulation Study On Mathematical Model Of
Dc Shunt Motor.
Description: The main aim of this project is mathematical model of dc
shunt motor in C and the to study the effect of damping.
Publication
C. U. Reddy, K. K. Prabhakar, A. K. Singh and P. Kumar,
"Speed Estimation Technique Using Modified Stator Current
Error Based MRAS for Direct Torque Controlled Induction
Motor Drives," in IEEE Journal of Emerging and Selected
Topics in Power Electronics. 2019.
doi: 10.1109/JESTPE.2019.2901523
C. Upendra Reddy; Prabhakar, Kashyap; Singh, Amit Kumar;
Kumar, Praveen: “Direct Torque Control Induction Motor Drive
Performance Evaluation Based on Torque Error Status Selection
Methods”, IET Electrical Systems in Transportation, 2019,
DOI: 10.1049/iet-est.2018.5005IET Digital Library,
https://digital-library.theiet.org/content/journals/10.1049/iet-
est.2018.5005K.
K. Prabhakar, U. R. Chinthakunta, A. K. Singh and P. Kumar,
"Efficiency and performance analysis of DTC-based IM
drivetrain using variable dc-link voltage for electric vehicle
applications," in IET Electrical Systems in Transportation, vol.
8, no. 3, pp. 205-214, 9 2018.
C. Upendra Reddy, Kashyap Kumar Prabhakar, Amit Kumar
Singh and Praveen Kumar, "Flux estimation in DTC for wide
speed range," 2016 IEEE Power and Energy Society General
Meeting (PESGM), Boston, MA, 2016, pp. 1-5. doi:
10.1109/PESGM.2016.7741637.
C. U. Reddy, K. K. Prabhakar, A. K. Singh and P. Kumar,
"Performance evaluation of DTC IM drive for an EV
application," 2017 IEEE Power & Energy Society General
Meeting, Chicago, IL, 2017, pp. 1-5.
K. K. Prabhakar, A. K. Singh, C. U. Reddy and P. Kumar,
"Drive system for electric vehicle power train application using
DC to AC matrix converter," 2014 IEEE International
Conference on Power Electronics, Drives and Energy Systems
(PEDES), Mumbai, 2014, pp. 1-4.
A. K. Singh, C. U. Reddy, K. K. Prabhakar and P. Kumar,
"FPGA implementation of direct torque control of induction
motor with reduced ripples in torque and flux," 2015 IEEE
International Transportation Electrification Conference (ITEC),
Chennai, 2015, pp. 1-8.
A. K. Singh, P. Kumar, C. U. Reddy and K. Prabhakar,
"Simulation of direct torque control of induction motor using
Simulink, simplorer and maxwell software," 2015 IEEE
International Transportation Electrification Conference (ITEC),
Chennai, 2015, pp. 1-6.
K. K. Prabhakar, M. Ramesh, A. Dalal, C. U. Reddy, A. K.
Singh and P. Kumar, "Efficiency investigation for electric
vehicle powertrain with variable DC-link bus voltage," IECON
2016 - 42nd Annual Conference of the IEEE Industrial
Electronics Society, Florence, Italy, 2016, pp. 1796-1801.
K. K. Prabhakar, C. U. Reddy, A. K. Singh and P. Kumar,
"Inverter switching frequency prediction in DTC of induction
motor drive for an EV drivetrain," 2017 IEEE Power & Energy
Society General Meeting, Chicago, IL, 2017, pp. 1-4.