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MS & PhD in Power Electronics | Senior R&D Engineer | Specialist in Grid connected SST, BESS, Wind and Motor Drives

Profile Summary

I am a power electronics engineer and researcher with a MS and PhD from IIT Madras (CGPA 9.06/10) and Post-Doctoral experience at the PEMSEC Lab, University of Houston. I currently serve as a Senior R&D Engineer. I have more than 7 years of experience in Power Electronics domain. My core research and industrial expertise are in grid-connected renewable energy systems, BESS, Solar, and Wind, with both Grid-Following (GFL) and Grid-Forming (GFM) control architectures. Solid State Transformer (SST) technology for medium-voltage grid and motor drive applications. I led the design, hardware development, and full control system implementation of a 3-stage 20kW CHB-based SST (1.65kV MVAC / 600V LVDC / 300V LVAC) in collaboration with an industry partner MR Germany. This is among the very few research groups globally to have built and validated MV-rated SST hardware. My publication record includes 5 first-author peer-reviewed IEEE journal papers and 6 IEEE conference papers. I also hold a filed Indian patent on MV grid-connected converter. Beyond SST, my expertise spans the full power electronics domain: grid-connected inverter control (GFL and GFM), motor drives (sensored and sensorless FOC), SiC and Si/IGBT device applications, EV charging systems, and simulation using PSCAD, MATLAB Simulink, and PLECS. Hardware implementation using CCS (DSP) and Quartus (FPGA). I am well-positioned to take work on: 1. Renewable energy (Wind, Solar) and energy storage grid-connected (2L-VSI or Multilevel) converter systems and their control: GFL and GFM 2. Power electronic converter and its control solution for EV charging and EV charging station. 3. Solid State Transformer (SST) and its control, Technology with WBG devices (SiC MOSFET) for data center, charging stations, renewable power generation, etc. 4. Motor drives and their control: Scalar, FOC with sensor, and sensorless. 5. Isolated DC/DC converter with high frequency link.

Subject Matter Expertise

• ☆ Electrical Engineering
• ☆ Semiconductors
• ☆ Power Engineering
• ☆ Electronics Engineering
• ☆ Renewable Energy
• ☆ Solar Energy
• ☆ Wind Turbine Design
• ☆ Wind Energy
• ☆ Hydropower
• ☆ Electric Power

Services

• Research
• Consulting
• Product Development

Research Feasibility Study, Technology Scouting, Scientific and Technical Research

Consulting Scientific and Technical Consulting

Product Development Formulation, Recipe Development, Product Evaluation, Product Validation, Product Compliance , Concept Development, Product Launch Support, Prototyping

Work Experience

Senior R&D Power Electronic Engineer

Hitachi

February 2025 - Present

Post-Doctrocal Fellow

University of Houston

July 2024 - January 2025

Researcher

IIT Madras

August 2018 - July 2024

Education

PhD

Indian Institute of Technology, Madras

August 2018 - July 2024

MS

Indian Institute of Technology, Madras

August 2018 - July 2024

Certifications

• Certification details not provided.

Publications

JOURNAL ARTICLE

Himanshu Patel, Shekhar Bhawal, Kamalesh Hatua, Subhashish Bhattacharya (2025). Closed-Loop Control of Common DC-Link Voltage of Solid-State Transformer From Medium-Voltage Stage Using Quasi-Square-Wave Modulation . IEEE Journal of Emerging and Selected Topics in Power Electronics.

Himanshu Patel, Kamalesh Hatua, Subhashish Bhattacharya (2025). Hybrid Modulation Technique of MV Grid-Connected Cascaded H-Bridge-Based Power Electronic Transformer Technology . IEEE Journal of Emerging and Selected Topics in Power Electronics.

Himanshu Patel, Shekhar Bhawal, Kamalesh Hatua (2025). Solid-State Transformer (SST)-Based High-Frequency MV Propulsion Drive With New Modulation Technique . IEEE Transactions on Transportation Electrification.

Himanshu Patel, Shekhar Bhawal, Harikrishnan P, Kamalesh Hatua, Subhashish Bhattacharya (2024). Three Stage Power Electronic Transformer Based MVAC Collection System and Its Control System Design for Offshore Wind Power Generation Mills . IEEE Transactions on Energy Conversion.

Patel, Himanshu, Chahar, Sourabh, Bhawal, Shekhar, Hatua, Kamalesh (2024). Soft Start-Up Technique for Solid State Transformer . IEEE Texas Power and Energy Conference, TPEC.

Patel, Himanshu, Bhawal, Shekhar, Harikrishnan, P., Hatua, Kamalesh, Bhattacharya, Subhashish (2024). Three Stage Power Electronic Transformer Based MVAC Collection System and Its Control System Design for Offshore Wind Power Generation Mills . IEEE Transactions on Energy Conversion.

Patel, Himanshu, Titus, Jose, Hatua, Kamalesh, Rao, S. Eswara (2023). Power-Loss Ride-Through With Reduced Number of Voltage Sensors in a Cascaded H-Bridge Inverter Fed Vector Controlled Induction Motor Drive . IEEE Transactions on Industry Applications.

Himanshu Patel, Jose Titus, Kamalesh Hatua, S Eswara Rao (2023). Power-Loss Ride-Through with Reduced Number of Voltage Sensors in a Cascaded H-Bridge Inverter fed Vector Controlled Induction Motor Drive . IEEE Transactions on Industry Applications.

Patel, Himanshu, Bhawal, Shekhar, Hatua, Kamalesh, Vasudevan, Krishna, Bhattacharya, Subhashish (2023). Solid-State Transformer Based on Naturally Cell Balanced Series Resonant Converter With Cascaded H-Bridge Cells Switched at Grid Frequency . IEEE Transactions on Power Electronics.

CONFERENCE PAPER

Chahar, S., Patel, H., Hatua, K. (2024). Control of Cascaded H - Bridge and Series Resonant Dual Active Bridge (DC-DC) based Solid State Transformer under Unbalance Grid . IEEE International Communications Energy Conference (INTELEC).

Patel, H., Bhawal, S., Hatua, K. (2023). MV Propulsion Drive using Solid State Transformer (SST) Technology . IEEE Texas Power and Energy Conference (TPEC).

Titus, J., Patel, H., Anurag, M.B., Bhawal, S., Dey, S., Saravanan, D., Hatua, K., Rao, S.E. (2022). Online Soft Restart of a Cascaded H-Bridge Inverter fed Induction Motor Drive After Cell Faults . IEEE International Conference on Power Electronics, Smart Grid, and Renewable Energy (PESGRE).

Patel, Himanshu, Bhawal, Shekhar, Hatua, Kamalesh (2022). Power Electronic Transformer with H-Bridge Cells Switched in Stair-case Mode and A Voltage Source Inverter in High Frequency Mode in MV Stage . IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES).

Patel, H., Titus, J., Hatua, K., Rao, S.E. (2022). Power-Loss Ride-Through in a Cascaded H-Bridge Inverter Fed Vector Controlled Induction Motor Drive . IEEE International Conference on Power Electronics, Smart Grid, and Renewable Energy (PESGRE).