300MVA 脉冲发电机高压变频器调速装置设计及调试

HL-2M 装置 300MVA 脉冲发电机组的调速装置高压变频器主要由输入和输出部分、功率单元、控制部分组成。对高压变频器进行了调试及试验运行。试验表明其输入谐波含量小，输出波形也是完美正弦波，启动到工作转速的时间为 16min，再加速时间未超过 5min，能够满足实验放电要求。根据调试情况对空载电流及转子时间常数进行了优化，在空载电流为 300A、转子时间常数为 1.34s 时，其性能为最优。

Design and testing of high voltage inverter speed regulating devicefor 300MVA pulse generator

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.