关键词: HL-2M 装置；脉冲发电机；调速设备；高压变频器 

Abstract: The high voltage inverter, a speed control device for HL-2M 300MVA pulse generator mainly 
consists of input and output parts, power unit, and control part. The commissioning and test operation of the 
high-voltage inverter were carried out. The test shows that its input harmonic content is small and the output 
waveform is also a perfect sine wave. The time from start-up phase to operating speed phase is 16 minutes and the 
re-acceleration time does not exceed 5 minutes, which can meet the experimental discharge requirements. The 
no-load current and rotor time constant were optimized according to the commissioning situation, and the 
performance was optimal at the no-load current of 300A and the rotor time constant of 1.34s. 

Key words: HL-2M tokamak, Pulse generator, Speed regulation requirement, High voltage inverter