采用电磁隔离霍尔元件进行电流检测，采用了IGBTCPV 363m 4 K模块组成逆变桥来实现功率主回路直流到交流的逆变。
Electromagnetism isolated Hall sensor is used to sense the phase current of the PMSM, and the IGBT CPV363M4K module is used to implement the inverter.
开关式励磁调节器主回路设计中需要考虑的两个主要问题是开关器件的尖峰电压和冲击电流。
Two main problems in designing the main circuit of switching mode excitation controller are peek voltage and over current of switching device.
电压、电流真有效值变换精度高、速度快，电压真有效值负反馈闭环控制主回路网压波动补偿精度高；
The RMS converters of voltage and current have the advantages of high speed and precision, and with the feedback of RMS, the fluctuate of power voltage can be compensated at high precision.
主回路采用由18个晶闸管组成的三相零式电路，并辅以晶闸管的保护电路，通过控制可以得到低频正弦波的电压（电流）输出；
The main circuit is consisted of 18 thyristors circuit and protection circuit. With the help of control subsystem, it can get the output of low frequency voltage (current) with the shape of sine wave;
该系统主回路为高低高结构电流源型变频器，采用单片机为核心的数字控制器，其控制策略采用转子磁通定向直接矢量控制。
This system is a high low high CSI, of which controller is based on a single chip computer. The control strategy adopts vector control.
该系统主回路为高低高结构电流源型变频器，采用单片机为核心的数字控制器，其控制策略采用转子磁通定向直接矢量控制。
This system is a high low high CSI, of which controller is based on a single chip computer. The control strategy adopts vector control.
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