This advanced pulsed power supply serves as a core driver for PF and CS magnets in tokamak fusion devices. Designed with a fully modular architecture, it integrates three key subsystems: a high-density Energy Storage Unit, a high-efficiency Power Conversion Unit, and an intelligent Digital Control Unit. - Through adjustable power switch topologies and hybrid energy storage—combining aluminum electrolytic capacitors with supercapacitor modules—the system can be rapidly reconfigured between PF pulse magnet drive power supplies and CS pulse magnet drive power supplies, offering exceptional operational adaptability. - Delivers output currents up to ±10 kA (PF) and ±20 kA (CS), with a current rise rate of 1 kA/ms. The current fall rate is configurable via external series resistors, extending up to 2 kA/ms for CS operation. - Supports both voltage-controlled and current-controlled discharge regimes. Operators can select either mode prior to operation or switch between them in real time during discharge for unmatched waveform flexibility. - Equipped with multi-protocol communication interfaces (RS485, Ethernet, EtherCAT), the system enables seamless remote monitoring, control, and automation via integrated power supply control software. - Its modular construction allows for tailored adjustments to output voltage, current, pulse waveform, and timing parameters, ensuring optimal performance for specific experimental or operational requirements.
Item | Specification Description | |
Input | Input Voltage | 220VAC±15 |
Input Powe | 9kW | |
Stored Energy | 5.58MJ | |
| Output | Output Voltage | -520V~520V（PF），-400V~400V（CS） |
| Voltage Accuracy | ±5%FS | |
| Output Current | -10kA~10kA（PF），-20kA~20kA（CS） | |
| Current Accuracy | ±1%FS | |
| Current Rise Rate | ≤1kA/ms | |
| Current Fall Rate | ≤1kA/ms（PF），≤2kA/ms（CS） | |
| Output Pulse Duration | ≤500ms | |
| Discharge Interval | ≥10min | |
| Control | Regulation Control Cycle | 200us |
| Communication Interface | RS485, EtherCAT, Ethernet | |
| Control Mode | Voltage Control Mode, Current Control Mode | |
Energy Storage | Type | Electrolytic Capacitor Module, Supercapacitor Module |
| Discharge | Wire-wound Resistor, Water-cooled Resistor | |
Safety | Insulation Withstand Voltage | 2500VDC |
| Structure | Dimensions | 3200mm×2000mm×1600mm |
Environmental Conditions | Ambient Temperature | 0~45℃ |
| Humidity | ≤95%，Non-condensing | |
| Altitude | 0~2000m | |
| Cooling Method | Natural Cooling,Water Cooling | |
Discharge Current Waveform Examples | PF Discharge Waveform |  |
| CS Discharge Waveform |  | |
This pulsed tokamak magnet power supply employs a modular architecture, delivering high-current output, exceptional current slew rate (di/dt), and advanced waveform programming capabilities. It enables real-time, closed-loop waveform control based on both acquired data and user-defined profiles, making it an ideal solution for driving diverse magnet systems in fusion research.
Proven in rigorous operation on the SUNIST-2 tokamak, the system has successfully executed tens of thousands of continuous discharge cycles with outstanding stability and repeatability.
Beyond tokamak applications, its core technological strengths extend to the following fields:
Controlled Nuclear Fusion Research: Provides high-performance driving solutions for magnet systems in alternative fusion concepts, such as stellarators and Z-pinch devices.
Large-Scale Scientific Facilities: Serves as a critical power source for large superconducting magnet testing systems and particle accelerator complexes.
Specialized Industrial & Research Applications: Offers tailored pulsed power solutions for demanding processes including special material treatment, extreme condition simulation, and next-generation medical equipment.
