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K. Ramachandra Sekhar

Associate Professor
Room No-118, J C Bose building, IIT Ropar
sekhar@iitrpr.ac.in
+91-188-1232215
Google Scholar Profile


Introduction

Research Highlights

16

Journal Publications

24

Conference Publications

6

Research Projects

4

Patents

0

Awards & Honours

Qualifications
  1. Ph.D
Research Interests
  • Power electronics
  • Renewable energy sources
  • microgrids
  • control systems
  • Drives
Brief Research Profile

  1. 1. Aashish Kumar, K Ramachandra Sekhar, "A Novel DC Capacitor Deficit Power Balancing Mechanism for Innate Maximum Power Tracking With Eliminated Regulators in PV-Inverters", IEEE Transactions on Industrial Electronics, ,  , 2025
  2. 2. Aashish Kumar; Baibhav Kumar Gupta; A.Surya Kiran;K Ramachandra Sekhar, "An Adaptive Fractional Voltage MPPT with the Exponential Sliding AC Voltage and Current Controllers for Enhanced Power Processing Integrity", IEEE Transactions on Industry Applications, ,  , 2025
  3. 3. Aashish Kumar, K Ramachandra Sekhar, A Surya Kiran, "The Grid interfaced PV-driven Dual Port Solar System with Improved Depth of Power Extraction under Solar Irradiance Disparity (Accepted)", IEEE Transactions on Power Electronics, ,  , 2025
  4. 4. Reddy, P Mahesh; Gupta, Baibhav Kumar; K Ramachandra Sekhar;, "Design and Implementation of Load Network Time Constant Computation Based Solar Active Power Filters Cum Injector for Industrial Loads/Grids", IEEE Access, ,  , 2024
  5. 5. Reddy, P Mahesh; Gedam, Amol Ishwarrao; K Ramachandra Sekhar;, "A Solar Series Grid Following Harmonic Compensator with Enhanced Grid Current Shaping and Active Power Injection Capability", IEEE Transactions on Power Delivery, ,  , 2024
  6. 6. Gedam, Amol Ishwarrao; K Ramachandra Sekhar;, "A Novel Switching Vector Sequencing Method to Optimize DC Voltage Ripple in Dual Inverter Drive Without Affecting Load Current Ripple", IEEE Transactions on Industrial Electronics, ,  , 2024
  7. 7. Reddy, P Mahesh; K Ramachandra Sekhar;, "Instantaneous Induced Braking Energy Modeling and Disperse Inverter Voltage Vector Synthesis for Maximum Energy Recovery in IM-based Drives", IEEE Transactions on Industry Applications, ,  , 2024
  8. 8. Gedam, Amol Ishwarrao; K Ramachandra Sekhar; Kumar, Nikhil;, "A New Minimum DC Voltage Ripple Generating PWM Selection Algorithm for Voltage Source Inverter", IEEE Journal of Emerging and Selected Topics in Power Electronics, ,  , 2024
  9. 9. Gupta, Baibhav Kumar; Kumar, Aashish; K Ramachandra Sekhar;, "A configurable multi input port hybrid inverter topology with quadrupled voltage gain for PV and hybrid applications", CPSS Transactions on Power Electronics and Applications, ,  , 2024
  10. 10. Gupta, Baibhav Kumar; K Ramachandra Sekhar;, "A current controller gain characterization of weak grid coupled solar inverter through impedance interaction modeling", IEEE Transactions on Industrial Electronics, 70,  2520-2530, 2022
  11. 11. Gedam, Amol Ishwarrao; K Ramachandra Sekhar;, "Minimum DC voltage ripple switching sequence elicitation for dual inverter through AC load error volt-sec computation", IEEE Transactions on Power Electronics, 37,  15654-15665, 2022
  12. 12. Gupta, Baibhav Kumar; K Ramachandra Sekhar; Kumar, Aashish;, "A novel multigain single-stage grid-connected inverter with asynchronous switching for intra-inverter circulating current elimination", IEEE Transactions on Power Electronics, 37,  15641-15653, 2022
  13. 13. Gupta, Baibhav Kumar; K Ramachandra Sekhar; Gedam, Amol Ishwarrao;, "Solar Interfaced Series Inverter with Provision of Common DC bus Grounding", IEEE Transactions on Industrial Electronics, ,  , 2021
  14. 14. K Ramachandra Sekhar; Srinivas, Srirama;, "Torque ripple reduction PWMs for a single DC source powered dual‐inverter fed open‐end winding induction motor drive", IET Power Electronics, 11,  43-51, 2018
  15. 15. K Ramachandra Sekhar; Srinivas, S;, "Discontinuous decoupled PWMs for reduced current ripple in a dual two-level inverter fed open-end winding induction motor drive", IEEE Transactions on Power Electronics, 28,  2493-2502, 2012
  16. 16. Srinivas, S; K Ramachandra Sekhar;, "Theoretical and experimental analysis for current in a dual-inverter-fed open-end winding induction motor drive with reduced switching PWM", IEEE Transactions on Industrial Electronics, 60,  4318-4328, 2012

  • 1. Lone, Azad Hamza; Gedam, Amol Ishwarrao; K Ramachandra Sekhar;, "Voltage Support and Imbalance Mitigation during Voltage Sags by Renewable Energy Fed Grid Connected Inverters", 2023 IEEE IAS Global Conference on Renewable Energy and Hydrogen Technologies (GlobConHT), ,  1-6, 2023
  • 2. Lone, Azad Hamza; Gedam, Amol Ishwarrao; K Ramachandra Sekhar;, "Fault Ride Through with Conformance to Grid Voltage Limits in Photovoltaic Grid Connected Inverters.", 2023 IEEE IAS Global Conference on Emerging Technologies (GlobConET), ,  1-6, 2023
  • 3. Reddy, P Mahesh; Manjunath, K; K Ramachandra Sekhar; Gupta, Baibhav Kumar;, "Nonlinear Load Time-Constant Based Filter Inductance Design for PV-Driven Grid-Connected SAF/PFC in EV Charging Infrastructure", IECON 2023-49th Annual Conference of the IEEE Industrial Electronics Society, ,  1-6, 2023
  • 4. Kumar, Aashish; Karn, Manish; Gupta, Baibhav Kumar; K Ramachandra Sekhar;, "A direct current MPPT control with eliminated outer loop for grid interfaced solar inverter", 2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), ,  1-5, 2022
  • 5. Reddy, P Mahesh; K Ramachandra Sekhar;, "The Effect of Disperse voltage on Dynamic Braking Energy Recovery in Induction Motor Based EV Drives", 2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), ,  1-6, 2022
  • 6. Gedem, Amol Ishwarrao; Ranjan, Ravi; Mishra, Nitish; K Ramachandra Sekhar;, "Modelling and Design of Grid Synchronised Three Phase Single Stage Battery Charging Station", 2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), ,  1-6, 2022
  • 7. Kumar, Aashish; Gupta, Baibhav Kumar; K Ramachandra Sekhar;, "Double Integral Sliding Surface MPP Control for Single Stage Grid Connected Inverte", 2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), ,  1-5, 2022
  • 8. Meikap, Somnath; K Ramachandra Sekhar;, "Pole-Zero Analysis of a simple Gate Driver Circuit over the medium range of frequency used in Power Electronics Devices", 2020 IEEE Applied Power Electronics Conference and Exposition (APEC), ,  103-106, 2020
  • 9. Barot, Rohan; K Ramachandra Sekhar;, "Printed circuit board for reducing common mode current and a method thereof", , ,  , 2019
  • 10. Gupta, BK; Gedam, AI; K Ramachandra Sekhar;, "Evaluation of DC Link Capacitor for Solar Fed Dual Inverter with Zero Sequence Elimination PWM", , ,  , 2019
  • 11. Gupta, Baibhav Kumar; Gedam, Amol Ishwarrao; K Ramachandra Sekhar;, "A dual inverter based grid connected solar power conditioning system with coordinated closed loop control", 2019 IEEE Innovative Smart Grid Technologies-Asia (ISGT Asia), ,  2178-2183, 2019
  • 12. K Ramachandra Sekhar; Gupta, Baibhav Kumar; Gedam, Amol Ishwarrao;, "The closed loop controller gain characterization for enhanced current quality in solar inverters coupled with weak grid", 2019 8th International Conference on Renewable Energy Research and Applications (ICRERA), ,  696-701, 2019
  • 13. Gupta, Aakriti; K Ramachandra Sekhar;, "A DC planar bus bar of high-frequency power converter with enhanced current distribution", 2019 21st European Conference on Power Electronics and Applications (EPE\'19 ECCE Europe), ,  P. 1-P. 10, 2019
  • 14. Gupta, Baibhav Kumar; K Ramachandra Sekhar; Gedam, Amol Ishwarrao;, "Balanced per-phase sequential switching to suppress circulating current in grid connected modular solar inverters", 2019 8th International Conference on Renewable Energy Research and Applications (ICRERA), ,  686-691, 2019
  • 15. K Ramachandra Sekhar; Bhatt, Aalok; Kawashima, Tetsuya;, "A New High Power Solar Inverter Topology with Reduced DC Potential for Enhanced Reliability", PCIM Asia 2017; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, ,  1-6, 2017
  • 16. Patel, Prashant; K Ramachandra Sekhar; Patel, Yashpal;, "A novel control strategy to enhance the current quality in grid tied solar inverter", 2016 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), ,  1-6, 2016
  • 17. K Ramachandra Sekhar; Barot, Rohan; Patel, Prashant; Kumar, N Vinoth;, "A novel topology for improved DC bus utilization in PMSG based wind energy generation system", 2015 International Conference on Renewable Energy Research and Applications (ICRERA), ,  525-530, 2015
  • 18. K Ramachandra Sekhar; Kumar, N Vinoth; Harada, Yasushi;, "Impact of renewable energy control center on voltage stability and transmission network efficiency in wind farm integrated grid", 2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), ,  1-6, 2014
  • 19. K Ramachandra Sekhar; Srinivas, S;, "Current ripple analysis for an asymmetric dual two-level inverter drive with reduced common mode voltage PWM technique", 2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), ,  1-6, 2012
  • 20. Kalaiselvi, J; K Ramachandra Sekhar; Srinivas, S;, "Common mode voltage elimination PWMs for a dual two-level VSI with single inverter switching", 2012 IEEE International Symposium on Industrial Electronics, ,  234-239, 2012
  • 21. K Ramachandra Sekhar; Srinivas, S;, "Effect of a CMV elimination PWM on stator current ripple in a dual two-level inverter fed induction motor drive", International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion, ,  395-400, 2012
  • 22. K Ramachandra Sekhar; Srinivas, S;, "Current ripple analysis in a decoupled SVPWM controlled dual two-level inverter fed open-end winding induction motor drive", 2011 2nd Power Electronics, Drive Systems and Technologies Conference, ,  373-378, 2011
  • 23. Srinivas, S; K Ramachandra Sekhar;, "HYBRID PWM SWITCHING STRATEGY FOR A THREE‐LEVEL INVERTER FED INDUCTION MOTOR DRIVE WITH OPEN‐END WINDINGS", AIP Conference Proceedings, 1239,  141-147, 2010
  • 24. K Ramachandra Sekhar; Mohan, Shravan; Srinivas, S;, "An improved PWM for a dual two-level inverter fed open-end winding induction motor drive", The XIX International Conference on Electrical Machines-ICEM 2010, ,  1-6, 2010

  • 1. Patent, "Circuit for controlling gate current of a semiconductor switching device" ISBN: published by - US Patent 10,187,051(Granted) Year: 2019 authors- K Ramachandra Sekhar;
  • 2. Patent, "Harmonic erasure unit and method of harmonic erasure" ISBN: published by - JP Patent 2,017,070,186 (Granted) Year: 2017 authors- Patel Prashant, K Ramachandra Sekhar;
  • 3. Patent, "Printed circuit board for reducing common mode current and a method thereof" ISBN: published by - US Patent 10,271,422 (Granted) Year: 2019 authors- K Ramachandra Sekhar; Rohan Barot
  • 4. Patent, "suppressing circulating current through sequential switching of modular inverters in grid applications" ISBN: published by - Indian Patent, 202011014453 (Granted) Year: 2013 authors- Baibhav Kumar Gupta K Ramachandra Sekhar; Amol

S. No. Title Funding Agency Role Start Year - End Year Amount (In Lacs) Details
1 Implementation of IoT Based Energy Management Tool For Grid Integrated Solar Irrigation System Nidhi Prayas PI 2020 - 2022 10.000
2 Implementation of Adaptive Reactive Power Compensation Mechanism for Enhanced Power Quality in Weak Grid Connected Solar Inverter under Varying Solar Irradiance SERB-CRG PI 2021 - 2024 32.000
3 The AI Enabled Solar based Multi port High Gain Electric Vehicle AC Charging Station for Domestic and Commercial Use MeiTY-Industry PI 2022 - 2024 66.000
4 Design, Modeling, and Development of Solar- Based Enhanced Active Power Filter to Support EV Charging Infrastruc- ture Interfaced with the Grid SERB-TARE PI 2022 - 2025 19.000
5 Design and implementation of the controller for IPMSM driven compressors used in the refrigeration system DST IMPRINT-2 PI 2025 - 2025 10.000
6 Design and Implementation of Power Converter for renewable energy sources to integrate with hybrid micro grid/utility grid ISIRD-IIT Ropar PI 2018 - 2021 50.000

S. No. Title Funding Agency Start Year - End Year Amount (In Lacs) Details

Code Title L-T-P-S-C Type Degree Year Semester

  • 1. Baibhav Kumar Gupta (Completed)
  • 2. Mahesh Reddy (Completed)
  • 3. Amol Ishwarrao Gedam (Completed)
  • 4. Aashish Kumar(Thesis submitted)