The Fusion Power Electronic Systems (FPES) Division, established in 2016, focuses on the indigenous design and development of megawatt-class power supply systems and associated technologies for fusion research. The division emphasizes modular, scalable, and standardized architectures to enhance system reliability, availability, and maintainability while minimizing on-site inventory and installation footprint. FPES supports the Government of India's Atmanirbhar Bharat initiative through indigenous technology development and collaborative programs with industry and research institutions.
FPES has established the Ultra High Voltage Systems (UHVS) Laboratory at IPR and has successfully designed and developed advanced high-voltage systems, including a 500 kV/100 mA DC power supply (scalable to 1000 kV), a 250 kV/2 A DC power supply (scalable to 500 kV), and a 300 kV multi-grid ion extraction and acceleration system for future Neutral Beam Injection (NBI) applications and high-voltage component qualification.
Critical subsystems—including high-frequency IGBT-based converters, high-voltage high-frequency transformers, Cockcroft–Walton symmetrical voltage multipliers, multilevel T-NPC inverters, transformer rectifiers, current limiting resistors, precision voltage dividers, HV earth switches, and modular resistive load banks—have been conceptualized, designed, prototyped, and validated entirely in-house, demonstrating IPR's capability in advanced fusion power electronics and ultra-high-voltage engineering.
