Power Supply

ITER-India has achieved significant milestones in developing cutting-edge high-voltage power supply systems for the world's largest nuclear fusion project. Operating under the Institute for Plasma Research (IPR), the group has established High Voltage Power Supply technology through systematic development spanning over two decades. ITER-India's power supply development activities represent innovations, systematic industrial partnerships, and comprehensive validation programs.

Development Timeline and Milestones

The systematic development program with key achievements:
2014
ICHVPS Commissioned at ITER-India facility
2016
Commissioned successfully 96kV 7.2MW manufactured by M/s. Electronics Corporation of India Ltd. under the Technology Transfer Agreement with IPR
2018
Thales RF source integration; 40kW RF generator commissioned
2019
SPIDER first beam achievement using Indian Acceleration Grid Power Supply at 30kV, confirming "perfect integration" within complex electrical systems
2021
EC MHVPS commissioned for gyrotron applications
2022
Gyrotron testing completed with 1MW, 1000s repetitive shots demonstration
2024
Successful ITER power and pulse requirements demonstration with 170 GHz, 1MW, 3600s specifications

Installed Power supplies

96kV, 7.2MW AGPS Installed at RFX, Italy
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96kV, 7.2MW AGPS Installed at RFX, Italy
ICHVPS Installed at ITER-India
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27kV + 14kV, 3MW dual output ICHVPS Installed at ITER-India
EC MHVPS Installed at ITER-India
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55kV, 6MW EC MHVPS Installed at ITER-India
DNB AGPS Installed at ITER-India
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96kV, 7.5MW DNB AGPS Installed at ITER-India

Progressive RF Development Program

Systematic solid-state RF generator development: 5kW (2016) → 40kW (2018) → 200kW (under development) for plasma source applications, demonstrating scalable technology advancement.

Solid state RF generator - Phase wise development

5kW, 1MHz Solid state RF generator for Plasma source Commissioned in 2016
5kW, 1MHz Solid state RF generator for Plasma source Commissioned in 2016
40 kW, 1MHz Solid state RF generator for Plasma source Commissioned in 2018
40 kW, 1MHz Solid state RF generator for Plasma source Commissioned in 2018
200 kW, 1MHz RFPS Solid state RF generator for DNB Plasma source Under Development
200 kW, 1MHz RFPS Solid state RF generator for DNB Plasma source Under Development

Transmission Line

Prototype Testing
Prototype Testing
Installation and integration with HVDECK
Installation and integration with HVDECK
Design for ITER going on
Design for ITER going on

HV Deck

HV DECK Site preparations
HV DECK Site preparations
HV DECK Installed
HV DECK Installed

Operations

  • Successful demonstration with CEC and Thales make ICRF sources for 3600s and beyond.
  • Extensive Operations with IC, EC, LHCD sources at II lab/IPR
  • Successful demonstration with 1MW Gyrotron for 1000s repetitive shots.
  • Continuous operations

Issues – resolutions – improvements – continuous interactions

summary-operation-2019
Summary of operation done in year 2019 illustrating operation points

Improvements/Risk Mitigation

  • Obsolesce management,
    • Controller hardware
    • Controller firmware
    • Interface hardware
  • Refinement of Operating modes and test scenarios
  • Heatsink with SS tubing
imp-risk-mitigation

Infrastructure facilities

  • Equipment Layout mimicking IO site provisions
  • 22kV Distribution system
  • Dummy loads
  • DM water facility

Industrial Participation

ECIL Strategic Collaboration

Partnership with Electronics Corporation of India Limited (ECIL) has enabled large-scale manufacturing with technology transfer success. ECIL completed Final Design Review (FDR) with Manufacturing Readiness Review (MRR) scheduled for March 2026. Current production includes 8 units of dual output ICPS and 4 units of ECPS for ITER France delivery.

Indigenous Supply Chain Development

Over two decades, ITER-India developed comprehensive vendor capabilities for high-performance components including multi-secondary transformers, SPS modules, and specialized measurement devices, all meeting stringent international standards (IEC 60038, NFC, Eurocode 8). Supporting ITER's 20-year lifecycle, systems utilize mostly COTS components.

Equipment Development
  • Multi-Secondary Cast Resin Transformers
    Multi-Secondary Cast Resin Transformers
  • CURRENT MEASURING UNITS (CMU)
    CURRENT MEASURING UNITS (CMU)
  • MULTI-SECONDARY OIL COOLED TRANSFORMERS
    MULTI-SECONDARY OIL COOLED TRANSFORMERS
  • HV Cable Feedthrough
    HIGH VOLTAGE WALL THROUGH BUSHING
  • ps-module-1
    Switched Power Supply Module for High Voltage PS
  • HMU-image-1
    VOLTAGE MEASURING UNITS (VMU)
  • 8kV 480kW HVPS with Soft Charging System
    8kV, 480kW, FAST MODULATING POWER SUPPLY
  • Composite High Voltage Transmission Line for Electrical/RF power, hydraulic/gas feed
    Composite High Voltage Transmission Line for Electrical/RF power, hydraulic/gas feed
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