Faculty

Professor Gedam's research focuses on inverter control, PWM optimisation, and renewable energy systems. His contributions include:

• DC Voltage Ripple Minimisation: Developed novel PWM sequencing and switching vector algorithms, achieving up to 35 per cent reduction in DC voltage ripple.
• Dual Inverter Systems: Investigated capacitor current stress and ripple characteristics for dual-inverter-fed machines, proposing optimised switching strategies.
• Solar Grid Integration: Designed filtering and control techniques to mitigate common-mode voltages, enhance current shaping, and improve harmonic compensation in solar-interfaced inverters.
• Battery Charging Applications: Worked on bidirectional DC–DC converters and grid-synchronised single-stage battery charging stations.
• Weak Grid Operation: Proposed adaptive control strategies for grid-forming inverters under fault ride-through and voltage imbalance conditions.
• Wind Turbines: Worked on the wind turbine during his tenure at General Electric.

Multiple patents and high-impact IEEE publications support Professor Gedam's research outputs. These include Transactions on Power Electronics, Transactions on Industrial Electronics, Journal of Emerging and Selected Topics in Power Electronics, and Transactions on Power Delivery

Journals

• Gedam, A. I., and Sekhar, K. R. (2022). Minimum DC Voltage Ripple Switching Sequence Elicitation for Dual Inverter Through AC Load Error Volt-Sec Computation. IEEE Transactions on Power Electronics, 37(12), 15654–15665. https://doi.org/10.1109/TPEL.2022.3193886
• Gedam, A. I., and Sekhar, K. R. (2024). 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, 71(11), 13682–13692. https://doi.org/10.1109/TIE.2024.3376816
• Gedam, A. I., Sekhar, K. R., and Kumar, N. (2024). A New Minimum DC Voltage Ripple Generating PWM Selection Algorithm for Voltage Source Inverter. IEEE Journal of Emerging and Selected Topics in Power Electronics, 13(1), 1177–1187 https://doi.org/10.1109/JESTPE.2024.3470337
• Reddy, P. M., Gedam, A. I., and Sekhar, K. R. (2024). A Solar Series Grid Following Harmonic Compensator with Enhanced Grid Current Shaping and Active Power Injection Capability. IEEE Transactions on Power Delivery, 39(3), 1563–1574. https://doi.org/10.1109/TPWRD.2024.3369098
• Gupta, B. K., Sekhar, K. R., and Gedam, A. I. (2022). Solar Interfaced Series Inverter With Provision of Common DC Bus Grounding. IEEE Transactions on Industrial Electronics, 69(4), 3656–3666. https://doi.org/10.1109/TIE.2021.3073303

Conferences

• Gedam, A. I., Gupta, B. K., and Sekhar, K. R. (2019). Evaluation of DC Link Capacitor for Solar Fed Dual Inverter with Zero Sequence Elimination PWM. In 2019 IEEE PES GTD Grand International Conference and Exposition Asia (GTD Asia) (pp. 667–672). https://doi.org/10.1109/GTDAsia.2019.8716014
• Gedem, A., Ranjan, R., Mishra, N., and Sekhar, K. R. (2022). Modelling and Design of Grid Synchronised Three Phase Single Stage Battery Charging Station. In 2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) (pp. 1–6). https://doi.org/10.1109/PEDES56012.2022.10080656
• Lone, A. H., Gedam, A. I., and Sekhar, K. R. (2023). Voltage Support and Imbalance Mitigation during Voltage Sags by Renewable Energy Fed Grid-Connected Inverters. In 2023 IEEE IAS Global Conference on Renewable Energy and Hydrogen Technologies (GlobConHT) (pp. 1–6). https://doi.org/10.1109/GlobConHT56829.2023.10087647
• Lone, A. H., Gedam, A. I., and Sekhar, K. R. (2023). Fault Ride Through with Conformance to Grid Voltage Limits in Photovoltaic Grid Connected Inverters. In 2023 IEEE IAS Global Conference on Emerging Technologies (GlobConET) (pp. 1–6). https://doi.org/10.1109/GlobConET56651.2023.10150098
• Sekhar, K. R., Gupta, B. K., and Gedam, A. I. (2019). The Closed Loop Controller Gain Characterization for Enhanced Current Quality in Solar Inverters Coupled with Weak Grid. In 2019 8th International Conference on Renewable Energy Research and Applications (ICRERA) (pp. 696–701). https://doi.org/10.1109/ICRERA47325.2019.8996644
• Gupta, B. K., Gedam, A. I., and Sekhar, K. R. (2019). A Dual Inverter Based Grid Connected Solar Power Conditioning System With Coordinated Closed Loop Control. In 2019 IEEE Innovative Smart Grid Technologies-Asia (ISGT Asia) (pp. 2178–2183). https://doi.org/10.1109/ISGT-Asia.2019.8880886
• Gupta, B. K., Sekhar, K. R., and Gedam, A. I. (2019). Balanced Per-Phase Sequential Switching to Suppress Circulating Current in Grid Connected Modular Solar Inverters. In 2019 8th International Conference on Renewable Energy Research and Applications (ICRERA). https://doi.org/10.1109/ICRERA47325.2019.8996838

Patents

• Suppression of common mode voltages and circulating currents through sequential switching of modular grid-connected inverters with common DC bus coupling (Patent No: 464017).
• Single-stage extended range voltage rectifier circuitry and control method thereof for battery charging application (Registered at Indian Patent Office with application no: 202111016095).
• A method and system for performing adaptive gain adjustment in solar inverters (Registered at the Indian Patent Office with application no: 202311045914).
• A smart solar water pumping system (Registered at the Indian Patent Office with application no: 202411053132).

Basic Electrical Engineering, Basic Power Electronics, Advance Power Electronics