PATENTS

1. Patent number: 565711

Inventor's Name(s): V. T. Somasekhar, Suresh Lakhimsetty

Title of Patent: A FOUR-LEVEL DUAL INVERTER FED OPEN END WINDING INDUCTION MOTOR (OEWIM) DRIVE 

Country of Patent: India

Date of Issue: 29/04/2025

JOURNALS

1. Manne Bharathi, Obbu Chandra Sekhar, Suresh Lakhimsetty, "Performance evaluation of flux reversal machines with rare-earth and non-rare earth excitations for micro wind energy," Current Applied Physics, Vol. 80, 2025, Pages 51-63, ISSN 1567-1739, https://doi.org/10.1016/j.cap.2025.09.002.

2. G. Yadav, D. Gohil, J. Venkataramanaiah and S. Lakhimsetty, "A New Control Method to Operate Isolated MLI as a Fast Fault-Tolerant Configuration for Handling a Wide Variety of Open Circuit Failures," in IEEE Transactions on Power Electronics, doi: 10.1109/TPEL.2025.3571474. 

3. Lakhimsetty, S., Patnana, H. K., Manwar, A. S., & Somasekhar, V. T. (2023). Hybrid-Clamping SVPWM Scheme for a Four-Level Open-End Winding Induction Motor Drive. Electric Power Components and Systems, 52(3), 457–470. https://doi.org/10.1080/15325008.2023.2226674.

4. Kumar, PH, Lakhimsetty, S, Somasekhar, VT. A low-cost fault-tolerant permanent magnet brush-less direct current motor drive for low-power electric vehicle applications. Int J Circ Theor Appl. 2023; 51(9): 4442-4453. doi:10.1002/cta.3642.

5. Kumar, PH, Mishra, D, Lakhimsetty, S, Somasekhar, VT. A space vector PWM scheme for an open-end winding induction motor drive with a reduced power loss Int Trans Electr Energ Syst. 2021; 31(11):e13104. doi:10.1002/2050-7038.13104.

6. Lakhimsetty, S.; Hema Kumar, P, Somasekhar, VT. 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. Int Trans Electr Energ Syst. 2021; 31:e12814. https://doi.org/10.1002/2050-7038.12814.

7. Chandra Sekhar, O, Lakhimsetty, S, Bhat, AH. A comparative experimental analysis of fractional order PI controller based direct torque control scheme for induction motor drive. Int Trans Electr Energ Syst 2021; 31:e12705. https://doi.org/10.1002/2050 7038.12705.

8. P. H. Kumar, S. Lakhimsetty and V. T. Somasekhar, "An Open-End Winding BLDC Motor Drive With Fault Diagnosis and Autoreconfiguration," in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 8, no. 4, pp. 3723-3735, Dec. 2020, doi: 10.1109/JESTPE.2019.2948968. ISSN: 2168-6777.

9. Chandra Sekhar O, Lakhimsetty, S. Direct torque control scheme for a five‐level multipoint clamped inverter fed induction motor drive using fractional‐order PI controller. Int Trans Electr Energ Syst 2020; 30:e12474. https://doi.org/10.1002/2050-7038.12474

10. S. Lakhimsetty and V. T. Somasekhar, "An Efficient Predictive Current Control Strategy for a Four-Level Open-End Winding Induction Motor Drive," IEEE Transactions on Power Electronics, vol. 35, no. 6, pp. 6198-6207, June 2020. DOI: 10.1109/TPEL.2019.2954864. ISSN No. 0885-8993.

11. S. Lakhimsetty and V. T. Somasekhar, "A Four-Level Open-End Winding Induction Motor Drive With a Nested Rectifier–Inverter Combination With Two DC Power Supplies," IEEE Transactions on Power Electronics, vol. 34, no. 9, pp. 8894-8904, Sept. 2019. ISSN No. 0885-8993, DOI: 10.1109/TPEL.2018.2884023

12. S. Lakhimsetty, V. S. P. Satelli, R. S. Rathore and V. T. Somasekhar, "Multilevel Torque Hysteresis-Band Based Direct-Torque Control Strategy for a Three-Level Open-End Winding Induction Motor Drive for Electric Vehicle Applications," IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 7, no. 3, pp. 1969-1981, Sept. 2019. ISSN:- 2168-6777, DOI: 10.1109/JESTPE.2018.2870382

13. S. Lakhimsetty and V. T. Somasekhar, "Discontinuous decoupled SVPWM schemes for a four-level open-end winding induction motor drive with waveform symmetries," IET Power Electronics, vol. 11, no. 2, pp. 280-292, 20 2 2018. ISSN No.: 1755-4535, DOI: 10.1049/iet-pel.2017.0096

14. S. Lakhimsetty, N. Surulivel and V. T. Somasekhar, "Improvised SVPWM Strategies for an Enhanced Performance for a Four-Level Open-End Winding Induction Motor Drive," in IEEE Transactions on Industrial Electronics, vol. 64, no. 4, pp. 2750-2759, April 2017. ISSN No.: 0278-0046, DOI: 10.1109/TIE.2016.2632059.

15. L. Suresh., G. R. S. Naga Kumar., M. V. Sudarsan and  K. Rajesh “ A Comparative Analysis of PWM Techniques for ZSI in Application of Electric Vehicles ” Journal of Electrical Systems, Vol.9, Issue-4, December 2013, pp.453-467 [ISSN 1112-5209].

16. L. Suresh., G.R.S.Naga Kumar & Dr. O. Chandra Sekhar “Analysis of Fuel Cell Based Converters in Application of Microgrids” Journal of Electrical Engineering (JEE) Vol. 15 Iss. 1 Jan. 2015, pp 191 - 198 [ISSN 1582-4594].

National / International Conferences

1. G. Yadav, D. M. Gohil, J. Venkataramanaiah and S. Lakhimsetty, "A Fault Tolerant N-Level Isolated Inverter Topology to Handle All Open Circuit Switch Faults Using Output Voltage Deviation Technique," 2024 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), Mangalore, India, 2024, pp. 1-6, doi: 10.1109/PEDES61459.2024.10961917. 

2. S. Lakhimsetty, V. T. Somasekhar and O. C. Sekhar, "A Phase-Clamped Proportional Duty Decoupled SVPWM Technique for a Four-Level Open-End Winding Induction Motor Drive," 2024 IEEE 4th International Conference on Sustainable Energy and Future Electric Transportation (SEFET), Hyderabad, India, 2024, pp. 1-5, doi: 10.1109/SEFET61574.2024.10717950. 

3. O. C. Sekhar, A. H. Bhat and S. Lakhimsetty, "Development of a Sensor-Less Control Scheme for SRM-Based PHEV," 2024 IEEE 4th International Conference on Sustainable Energy and Future Electric Transportation (SEFET), Hyderabad, India, 2024, pp. 1-5, doi: 10.1109/SEFET61574.2024.10717886. 

4. K. N. V. Sandeep and S. Lakhimsetty, "Dual PV String Fed Single-Phase Grid Connected System Using Heric Converter," 2024 IEEE 4th International Conference on Sustainable Energy and Future Electric Transportation (SEFET), Hyderabad, India, 2024, pp. 1-5, doi: 10.1109/SEFET61574.2024.10718030. 

5. L. Sravya and S. Lakhimsetty, "Voltage Vector-based Predictive Current Control Strategy for Three-Level Open-Winding Induction Motor Drive," 2023 IEEE 3rd International Conference on Smart Technologies for Power, Energy, and Control (STPEC), Bhubaneswar, India, 2023, pp. 1–5, doi: 10.1109/STPEC59253.2023.10430910. 

6. C. S. Obbu and S. Lakhimsetty, "Design of a Linear Permanent Magnet Synchronous Motor with Minimized Cogging Force," 2023 IEEE IAS Global Conference on Renewable Energy and Hydrogen Technologies (GlobConHT), Male, Maldives, 2023, pp. 1-3, doi: 10.1109/GlobConHT56829.2023.10087648.

7. S. T. Ramsham and S. Lakhimsetty, "Fuzzy-Logic Speed Controller for 3-Level Open-End Winding Induction Motor Drive with Predictive Torque Control Technique," 2022 Second International Conference on Power, Control and Computing Technologies (ICPC2T), 2022, pp. 1-5, doi: 10.1109/ICPC2T53885.2022.9776783.

8. S. Lakhimsetty and K. M. Shaik, "A Comparative Analysis of Current Control Strategies for a Solar based Single-Phase Grid Connected Inverter," 2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET), 2021, pp. 1-5, doi: 10.1109/SeFet48154.2021.9375693.

9. S. V. S. Prasad, R. R. Singh, V. T. Somasekhar and S. Lakhimsetty, "Performance evaluation of an induction motor drive with direct torque control for open-end winding and cascaded three-level topologies," 2017 6th International Conference on Computer Applications in Electrical Engineering-Recent Advances (CERA), Roorkee, 2017, pp. 308-313.

10. S. Lakhimsetty and V. K. J. D. Prasad, "Comparative performance analysis of decoupled SVPWM techniques for a four-level open-end winding induction motor drive," 2016 IEEE 7th Power India International Conference (PIICON), Bikaner, 2016, pp. 1-6.

11. K. S. Sivanandan, L. Suresh, and T. S. Sirish “ Design and Development of Microcontroller Based Control Model for Hybrid Assistive Limb (Knee)” 2nd International Conference on Signals, Systems & Automation (ICSSA 2011) on 24th and 25th of January 2011 at G H Patel college of engineering and Technology, Gujarat.

Books / Book-Chapters Published

1. Lakhimsetty, S., Myneni, H. and Sekhar, O.C. (2024). Single Inverter Switched SVPWM Scheme for Four-Level Open-End Winding Induction Motor Drive. In Multilevel Converters (eds S. Ahmad, F.I. Bakhsh and P. Sanjeevikumar). https://doi.org/10.1002/9781394167371.ch5. ISBN 978-1-394-16632-9