基于射频技术的无刷同步电机励磁电流的检测

Measuring Excitation Current of Brushless Synchronous Motor Based on RF Technology

无刷同步电机的励磁系统对励磁电流的测量是制约该励磁方式发展的一大障碍。设计了一个射频系统可以用来解决同步电机的励磁电流的测量问题。该系统可以方便地检测到同步电机励磁机的整流二极管的工作状态并且可以动态地显示励磁电流,极大地方便了运行人员做出判断,而且结构简单、方便实用。

The development of brushless excitation is restricted by the difficulty of measuring excitation current of synchronous motor. A RF system is designed to measure the excitation current of synchronous motor. With this system, the state of the silicon rectifier diode of the main excitation machine can be detected, and the excitation current can be displayed dynamically. It is very convenient for the operators to do a right judgment. The system features simple structure and easy operation.