对变浆电源进行测试，可描绘出励磁电流-时间波形，转矩电流-时间波形，位置-时间波形，速度-时间波形，Ia、Ib-时间波形，位置、速度-时间波形和相关参数。-Test of variable plasma power can depict the excitation current- time waveform, torque current- time waveform, the location- the time wave, the speed- the time wave, Ia, Ib-time waveform, position, speed- the time waveforms and parameters.