Information
Key Notes
- Journal(s): 52
- Conference(s): 11
- PhD: Current - 2 Awarded - 8
63
PUBLICATIONS10
DOCTORAL STUDENTS3
PROJECTS2
PATENTSResearch Areas
Fault Tolerant Drives
Multilevel Inverters
Open-End Winding AC Motor Drives
PWM Strategies
Renewable Energy Systems
EDUCATION QUALIFICATION
| Degree | Institute | Year |
|---|---|---|
| Doctor of Philosophy | Indian Institute of Science Bangalore | 2003 |
| Master of Technology | Indian Institute of Technology Bombay | 1990 |
| Bachelor of Technology | NIT Warangal (erstwhile REC Warangal) | 1987 |
COURSES HANDLED
| Course | L-T-P | Credit | Degree Level |
|---|---|---|---|
| Applications of Digital Signal Processors(EE16005) | 3-0-0 | 3 | PG |
| Advanced Electric Drives(EE16004) | 3-0-0 | 3 | PG |
| Applications of Digital Signal Processors(EE5103) | 3-0-0 | 3 | PG |
| Advanced Electric Drives(EE5152) | 3-0-0 | 3 | PG |
PUBLICATIONS
Journal(s)
Hybrid-Clamping SVPWM Scheme for a Four-Level Open-End Winding Induction Motor Drive,
By S Lakhimsetty, HK Patnana, AS Manwar, VT Somasekhar,
Taylor & Francis,
Electric Power Components and Systems,
vol.52(3),
pp.457-470,
2024
A dual quasi Z-source based T-type five-level inverter with improved HERIC structure for photovoltaic applications,
By CK Das, A Kirubakaran, VT Somasekhar, KS Kumar,
IEEE,
IEEE Transactions on Industry Applications,
vol.59(4),
pp.4539-4549,
2023
A low‐cost fault‐tolerant permanent magnet brush‐less direct current motor drive for low‐power electric vehicle applications,
By PH Kumar, S Lakhimsetty, VT Somasekhar, International Journal of Circuit Theory and Applications ,
Wiley,
International Journal of Circuit Theory and Applications ,
vol.51(9),
pp.4442-4453,
2023
A quasi-switched capacitor based grid-connected PV inverter with minimum leakage current,
By P Manoj, A Kirubakaran, VT Somasekhar,
IEEE,
IEEE Journal of Emerging and Selected Topics in Power Electronics,
vol.11(6),
pp.5969-5978,
2023
An enhanced fault-tolerant and autoreconfigurable BLDC motor drive for electric vehicle applications,
By PH Kumar, VT Somasekhar,
IEEE,
IEEE Journal of Emerging and Selected Topics in Industrial Electronics,
vol.4(1),
pp.368-380,
2022
A single-stage quasi-Z-source-based 5-level grid-tied PV inverter with reduced leakage current,
By P Manoj, A Kirubakaran, VT Somasekhar,
IEEE,
IEEE Journal of Emerging and Selected Topics in Power Electronics,
vol.11 (1),
pp.826-835,
2022
An asymmetrical dual quasi-Z-source based 7-level inverter for PV applications,
By P Manoj, A Kirubakaran, VT Somasekhar,
IEEE,
IEEE Transactions on Energy Conversion,
vol.38 (2),
pp.1097-1107,
2022
A space vector PWM scheme for an open‐end winding induction motor drive with a reduced power loss,
By PH Kumar, D Mishra, S Lakhimsetty, VT Somasekhar,
Wiley,
International Transactions on Electrical Energy Systems,,
vol.31 (11),
pp.e13104,
2021
A nine-level transformerless boost inverter with leakage current reduction and fractional direct power transfer capability for PV applications,
By S Dhara, VT Somasekhar,
IEEE,
IEEE journal of emerging and selected topics in Power Electronics,
vol.10 (6),
pp.7938-7949,
2021
A cost‐effective and fault‐tolerant brushless direct current drive with open‐stator windings for low power electric vehicles,
By HK Patnana, S Veeramraju Tirumala,
Wiley,
International Journal of Circuit Theory and Applications,
vol.49 (9),
pp. 2885-2908,
2021
A quasi-Z-source-based five-level PV inverter with leakage current reduction,
By CK Das, K Annamalai, Somasekhar VeeramrajuTirumala,
IEEE,
IEEE Transactions on Industry Applications,
vol.58 (1),
pp. 400-412,
2021
A three-phase semi-single stage PV inverter with voltage boosting and leakage current minimization,
By S Dhara, VT Somasekhar,
IEEE,
IEEE Transactions on Circuits and Systems II: Express Briefs,
vol.69 (1),
pp.169-173,
2021
A quasi-Z-source-based space-vector-modulated cascaded four-level inverter for photovoltaic applications,
By P Manoj, K Annamalai, S Dhara, VT Somasekhar,
IEEE,
IEEE Journal of Emerging and Selected Topics in Power Electronics,
vol.10 (4),
pp.4749-4762,
2021
Hybrid space‐vector pulse width modulation strategies for a four‐level open‐end winding induction motor drive with an improvised harmonic performance and balanced DC‐link capacitors,
By S Lakhimsetty, P Hema Kumar, VT Somasekhar,
Wiley,
International Transactions on Electrical Energy Systems,
vol.31 (4),
pp.e12814,
2021
A three‐phase inverter circuit using half‐bridge cells and T‐NPC for medium‐voltage applications,
By A Tirupathi, K Annamalai, S Veeramraju Tirumala,
Wiley,
International Journal of Circuit Theory and Applications,
vol.48 (10) ,
pp.1744-1765,
2020
Impedance source-based multilevel inverter: A State-of-the-art review,
By JR Rahul, CK Das, K Annamalai, VT Somasekhar,
World Scientific Publishing Company,
Journal of Circuits, Systems and Computers,
vol.29 (13),
pp.2030011,
2020
A new structure of three‐phase five‐level inverter with nested two‐level cells,
By A Tirupathi, K Annamalai, S Veeramraju Tirumala,
Wiley,
International Journal of Circuit Theory and Applications,
vol.47 (9),
pp.1435-1445,
2019
A new hybrid flying capacitor–based single‐phase nine‐level inverter,
By A Tirupathi, K Annamalai, S Veeramraju Tirumala,
Wiley,
International Transactions on Electrical Energy Systems,
vol.29 (12),
pp.e12139,
2019
A seven-level VSI with a front-end cascaded three-level inverter and flying-capacitor-fed H-bridge,” ,
By T Abhilash, K Annamalai, SV Tirumala,
IEEE,
IEEE Transactions on Industry Applications,
vol.55 (6),
pp.6073-6088,
2019
An integrated semi-double stage-based multilevel inverter with voltage boosting scheme for photovoltaic systems,
By S Dhara, VT Somasekhar,
IEEE,
IEEE Journal of Emerging and Selected Topics in Power Electronics,
vol.8 (3),
pp.2326-2339,
2019
An open-end winding BLDC motor drive with fault diagnosis and auto-reconfiguration,
By PH Kumar, S Lakhimsetty, VT Somasekhar,
IEEE,
IEEE Journal of Emerging and Selected Topics in Power Electronics,
vol.8 (4),
pp.3723-3735,
2019
An efficient predictive current control strategy for a four-level open-end winding induction motor drive,
By S Lakhimsetty, VT Somasekhar,
IEEE,
IEEE Transactions on Power Electronics,
vol.35 (6),
pp.6198-6207,
2019
Discontinuous decoupled SVPWM schemes for a four‐level open‐end winding induction motor drive with waveform symmetries,
By S Lakhimsetty, VT Somasekhar,
IET,
IET Power Electronics,
vol.11 (2),
pp.280-292,
2018
Multilevel torque hysteresis-band based direct-torque control strategy for a three-level open-end winding induction motor drive for electric vehicle applications,
By S Lakhimsetty, VSP Satelli, RS Rathore, VT Somasekhar,
IEEE,
IEEE Journal of Emerging and Selected Topics in Power Electronics,
vol.7 (3),
pp.1969-1981,
2018
A four-level open-end winding induction motor drive with a nested rectifier–inverter combination with two DC power supplies,
By S Lakhimsetty, VT Somasekhar,
IEEE,
IEEE Transactions on Power Electronics,
vol.34 (9),
pp.8894-8904,
2018
Common-mode current elimination PWM strategy along with current ripple reduction for open-winding five-phase induction motor drive,
By R Karampuri, S Jain, VT Somasekhar,
IEEE,
IEEE Transactions on Power Electronics,
vol.34 (7),
pp.6659-6668,
2018
Sample-averaged zero-sequence current elimination PWM technique for five-phase induction motor with opened stator windings,
By R Karampuri, S Jain, VT Somasekhar,
IEEE,
IEEE Journal of Emerging and Selected Topics in Power Electronics,
vol.6 (2),
pp.864-873,
2017
Improvised SVPWM strategies for an enhanced performance for a four-level open-end winding induction motor drive,
By S Lakhimsetty, N Surulivel, VT Somasekhar,
IEEE,
IEEE Transactions on Industrial Electronics,
vol.64 (4),
pp.2750-2759,
2016
A single-stage photovoltaic system for a dual-inverter-fed open-end winding induction motor drive for pumping applications,
By S Jain, AK Thopukara, R Karampuri, VT Somasekhar,
IEEE,
IEEE Transactions on Power Electronics,
vol.30 (9),
pp.4809-4818,
2015
An integrated control algorithm for a single-stage PV pumping system using an open-end winding induction motor,
By S Jain, R Karampuri, VT Somasekhar,
IEEE,
IEEE Transactions on Industrial Electronics,
vol.63 (2),
pp.956-965,
2015
An SVPWM scheme for the suppression of zero-sequence current in a four-level open-end winding induction motor drive with Nested Rectifier–inverter,
By BV Reddy, VT Somasekhar,
IEEE,
IEEE Transactions on Industrial Electronics,
vol.63 (5),
pp.2803-2812,
2015
A Four-Level Inversion Scheme for a 6n-Pole Open-End Winding Induction Motor Drive for an Improved DC-Link Utilization,
By VT Somasekhar, BV Reddy, K Sivakumar,
IEEE,
IEEE Transactions on Industrial Electronics,
vol.61 (9),
pp.4565-4572,
2013
A dual inverter fed four-level open-end winding induction motor drive with a nested rectifier-inverter,
By BV Reddy, VT Somasekhar,
IEEE,
IEEE Transactions on Industrial Informatics,
vol.9 (2),
pp.938-946,
2012
Decoupled space-vector PWM strategies for a four-level asymmetrical open-end winding induction motor drive with waveform symmetries,
By BV Reddy, VT Somasekhar, Y Kalyan,
IEEE,
IEEE Transactions on Industrial Electronics,
vol.58 (11),
pp.5130-5141,
2011
Effect of zero-vector placement in a dual-inverter fed open-end winding induction-motor drive with a decoupled space-vector PWM strategy,
By VT Somasekhar, S Srinivas, KK Kumar,
IEEE,
IEEE Transactions on Industrial Electronics,
vol.55 (6),
pp.2497-2505,
2008
Effect of zero-vector placement in a dual-inverter fed open-end winding induction motor drive with alternate sub-hexagonal centre PWM switching scheme,
By VT Somasekhar, S Srinivas, KK Kumar,
IEEE,
IEEE Transactions on Power Electronics,
vol.23 (3),
pp.1584-1591,
2008
Space-vector-based PWM switching strategies for a three-level dual-inverter-fed open-end winding induction motor drive and their comparative evaluation,
By S Srinivas, VT Somasekhar,
IET,
IET Electric Power Applications,
vol.2 (1),
pp.19-31,
2008
An Efficient Switching Algorithm for the Implementation of Synchronous Space Vector Modulation for an Induction Motor Drive with (V/f) Control,
By K. Mallikarjuna Rao, Sunita Nadampalli, VT Somasekhar,
APEJ, Hongkong,
Asian Power Electronics Journal, Hongkong,
vol.2 (2),
pp.96-110,
2008
Switching algorithms for the dual inverter fed open-end winding induction motor drive for 3-level voltage space phasor generation,
By S Srinivas, VT Somasekhar,
APEJ, Hongkong,
Asian Power Electronics Journal,
vol.1(1),
pp.96-110,
2007
Pulse width-modulated switching strategy for the dynamic balancing of zero-sequence current for a dual-inverter fed open-end winding induction motor drive,
By VT Somasekhar, S Srinivas, B Prakash Reddy, C Nagarjuna Reddy, K Sivakumar,
IET,
IET Electric Power Applications,
vol.1 (4) ,
pp.591-600,
2007
A multilevel inverter system for an induction motor with open-end windings,
By VT Somasekhar, K Gopakumar, MR Baiju, KK Mohapatra, L Umanand,
IEEE,
IEEE Transactions on Industrial Electronics,
vol.52(3),
pp.824-836,
2005
Dual two-level inverter scheme for an open-end winding induction motor drive with a single DC power supply and improved DC bus utilisation,
By VT Somasekhar, K Gopakumar, MR Baiju,
IEE,
IEE Proceedings on Electric Power Applications,
vol.151 (2),
pp.230-238,
2004
A space vector based PWM method using only the instantaneous amplitudes of reference phase voltages for three level inverters,
By MR Baiju, K Gopakumar, VT Somasekhar, KK Mohapatra, L Umanand,
Taylor & Francis,
Journal of European Power Electronics & Drives,
vol.13(2),
pp.35-45,
2003
A harmonic elimination and suppression scheme for an open-end winding induction motor drive,
By KK Mohapatra, K Gopakumar, VT Somasekhar, L Umanand,
IEEE,
IEEE transactions on Industrial Electronics,
vol.50(6) ,
pp.1187-1198,
2003
Three-level inverter configuration cascading two two-level inverters,
By VT Somasekhar, K Gopakumar,
IEE,
IEE Proceedings-Electric Power Applications,
vol.150(3),
pp.245-254,
2003
Five-level inverter voltage-space phasor generation for an open-end winding induction motor drive,
By MR Baiju, K Gopakumar, KK Mohapatra, VT Somasekhar, L Umanand,
IEE,
IEE Proceedings-Electric Power Applications,
vol.150(5),
pp.531-538,
2003
A high resolution multilevel voltage space phasor generation for an open-end winding induction motor drive,
By MR Baiju, K Gopakumar, KK Mohapatra, VT Somasekhar, L Umanand,
Taylor & Francis,
Journal of European Power Electronics & Drives,
vol.13(4),
pp.29-37,
2003
A space-vector modulation scheme for a dual two-level inverter fed open-end winding induction motor drive for the elimination of zero-sequence currents,
By VT Somasekhar, K Gopakumar, EG Shivakumar,
Taylor & Francis,
European Journal of Power Electronics and Drives ,
vol.12(2),
pp.1-19,
2002
PWM inverter switching strategy for a dual two-level inverter fed open-end winding induction motor drive with a switched neutral,” ,
By VT Somasekhar, K Gopakumar, A Pittet, VT Ranganathan,
IEE,
IEE Proceedings-Electric Power Applications,
vol.149(2),
pp.152-160,
2002
Multilevel voltage space phasor generation for an open-end winding induction motor drive using a dual inverter scheme with asymmetrical DC-link voltages,
By VT Somasekhar, EG Shivakumar, K Gopakumar, A Pittet,
Taylor & Francis,
Journal of European Power Electronics and Drives,
vol.12(3),
pp.59-77,
2002
A harmonic elimination scheme for an open-end winding induction motor drive fed from two inverters using asymmetrical DC link voltages,
By KK Mohapatra, VT Somasekhar, K Gopakumar,
Taylor & Francis,
Journal of European Power Electronics and Drives,
vol.12(4),
pp.28-36,
2002
A PWM schenle for a 3-level inverter cascading two 2-level Inverters,
By VT Somasekhar, K Gopakumar, MR Baiju, KK Mohapatra, L Umanand,
Indian Institute of Science & Springer-Nature,
Journal of the Indian Institute of Science,
vol.82(1),
pp.23-36,
2002
Conference(s)
A Phase-Clamped Proportional Duty Decoupled SVPWM Technique for a Four-Level Open-End Winding Induction Motor Drive
By Suresh Lakhimsetty, VT Somasekhar, Obbu Chandra Sekhar,
IEEE 4th International Conference on Sustainable Energy and Future Electric Transportation (SEFET),
2024
An Integrated Four-leg Three-phase Transformerless PV Inverter with Voltage Boosting Capability
By S. Dhara and V. T. Somasekhar,
IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES),
2020
Improved H5 Circuit Based Five-Level Quasi Z - Source Inverter With Reduced Leakage Current
By C. K. Das, A. Kirubakaran and V. T. Somasekhar, "," 2020 , Jaipur, India, 2020,
IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES),
2020
A Zone-Based Modulation Strategy to Reduce the Leakage Current in Transformerless PV Inverters
By S. Dhara and V. T. Somasekhar ,
IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES),
2020
A Seven-Level Hybrid Inverter with DC-Link and Flying Capacitor Voltage Balancing
By T. Abhilash, A. Kirubakaran and V. T. Somasekhar ,
IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe),
2019
A Space Vector Modulated Quasi-Z-Source Based Four-Level VSI for PV Application
By P. Manoj, V. T. Somasekhar and A. Kirubakaran,
IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe),
2019
A Five-Level Quasi Z-Source Based NPC Inverter for PV Applications
By C. K. Das, A. Kirubakaran and V. T. Somasekhar,
IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe),
2019
Performance evaluation of an induction motor drive with direct torque control for open-end winding and cascaded three-level topologies
By S. V. S. Prasad, R. R. Singh, V. T. Somasekhar and S. Lakhimsetty,
6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA),
2017
Comparative evaluation of SVPWM strategies for a dual inverter fed open-end winding induction motor drive with a single DC power supply
By R. S. Rao, B. N. Chaitanya, N. Saichand and V. T. Somasekhar,
IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society ,
2014
A SVM based four-level open-end winding-induction motor drive with voltage balancing of DC-link capacitors using SVM based HCC front-end converter
By B. V. Reddy and V. T. Somasekhar,
2011 Annual IEEE India Conference (INDICON),
2011
A Space Vector based PWM Switching Scheme for the reduction of Common-Mode Voltages for a Dual Inverter fed Open-end Winding Induction motor Drive
By V. T. Somasekhar, S. Srinivas and K. Gopakkumar,
Power Electronics Specialists Conference,
2005
Patent(s)
A Four-Level Dual-Inverter Fed Open-End Winding Induction Motor (OEWIM) Drive (565711)
A multi-switch fault-tolerant BLDC motor drive system for low power electric vehicles (487617)
PROJECT / CONSULTANCY
Design and Development of Cacaded Quasi Z-Source Multilevel Inverter for Grid-connected Photo Voltaic System
Role:
Principal Investigator
Type: Research
Sponsor: Science and Engineering Research Board (SERB), INDIA
Project Cost (INR): 4109000
Date of Commencement: 23-06-2017 Date of Completion: 26-01-2021
Duration: 43 Months
Status: Completed
Type: Research
Sponsor: Science and Engineering Research Board (SERB), INDIA
Project Cost (INR): 4109000
Date of Commencement: 23-06-2017 Date of Completion: 26-01-2021
Duration: 43 Months
Status: Completed
Development of a High-efficiency Single-phase Quasi-Z-Source Based Isolated DC/AC Converter for PV Application
Role:
Co-Principal Investigator
Type: Research
Sponsor: Science and Engineering Research Board (SERB), INDIA
Project Cost (INR): 3337000
Date of Commencement: 23-06-2017 Date of Completion: 26-01-2021
Duration: 43 Months
Status: Completed
Type: Research
Sponsor: Science and Engineering Research Board (SERB), INDIA
Project Cost (INR): 3337000
Date of Commencement: 23-06-2017 Date of Completion: 26-01-2021
Duration: 43 Months
Status: Completed
Implementation of Efficient Switching Algorithms with Digital Signal Processor for Multilevel Inverter Configuration with Open-end Winding Induction Motor
Role:
Principal Investigator
Type: Research
Sponsor: MHRD
Project Cost (INR): 600000
Date of Commencement: 24-07-2004 Date of Completion: 23-07-2006
Duration: 24 Months
Status: Completed
Type: Research
Sponsor: MHRD
Project Cost (INR): 600000
Date of Commencement: 24-07-2004 Date of Completion: 23-07-2006
Duration: 24 Months
Status: Completed
RESEARCH FELLOWS / PhD STUDENTS
Current PhD Students
Dasari Siva Prasada Rao
Area of Research:
Fault diagnosis of Semiconductor devices in Open-End Winding PMSM Drives
KVVD Ramana Kumar
Area of Research:
Fault-tolerant PMSM drive for EV applications
Previous PhD Students
P. Manoj
(2023)
Area of Research:
Quasi-Z-Source based Multilevel Inverters
Sumon Dhara
(2022)
Area of Research:
Multilevel Transformerless PV Inverter Topologies
P. Hemakumar
(2021)
Area of Research:
Fault-Tolerant BLDCM Drives for EVs
T. Abhilash (Co-Supervisor)
(2020)
Area of Research:
Hybrid Multilevel Inverter Topologies for Medium Voltage App
Suresh Lakhimsetty
(2019)
Area of Research:
Improvised SVPWM Schemes for 4-L OEWIM Drives
K. Ramsha (Co-Supervisor)
(2018)
Area of Research:
PV powered multiphase OEWIM pump-drives
B. Venugopal Reddy
(2012)
Area of Research:
Circuit Topologies and PWM Schemes for 4-L OEWIM Drives
S. Srinivas
(2007)
Area of Research:
Zero-Vector Placement in 3-L Dual-inverter fed OEWIM Drives
CONFERENCE / WORKSHOP / SYMPOSIUM / SHORT TERM COURSE / FACULTY DEVELOPMENT PROGRAMME
ADDITIONAL RESPONSIBILITIES
- Dean, Research & Development (July, 2023 - June, 2024)
Last updated on March 22, 2026