电流型两象限斩波器控制的无刷直流电动机

Two quadrant Current Chopper Control for Brushless DC Motor

采用在逆变器输入端加电流型两象限斩波器进行调压的方法，解决了稀土永磁无刷直流电动机因电枢电感小而带来的电流脉动大、不利于提高系统稳态性能等问题，并对这种调速系统的四象限工作原理进行了系统的分析，最后通过数字仿真和系统实验验证了采用电流型两象限斩波器能明显减小电流脉动。

In order to decrease the current ripple and improve the operating performances of the rare earth permanent magnetic brushless DC motor system,a two quadrant current chopper is used in the system and its operating principles are analyzed in this paper.The results of digital simulation and system experiment are presented and confirm that the system based on the two quadrant current chopper has attractive performances.