大容量多相同步推进电动机新型调速系统的研究

Research on the Novel Regulating Speed System for Multi-phase High-power Propulsive Synchronous Motor

在分析了 N相并联 H桥拓扑结构的大容量同步推进电机变频调速系统及其常规运行方案的基础上 ,提出了四拍 PWM运行方案 .仿真和试验结果表明该方案不但适用于任意相同步电动机的调速 ,而且还具有主开关器件承受电压低、系统缺相运行能力高、电枢绕组

The circuit topology and operation project affect performance of the regulation speed system. An operation project with four step PWM is presented which is based on the analysis about the circuit topology and operation project of the regulating speed system of high power propulsive synchronous motor. The results obtained from simulation and experiments confirm that the regulation speed system fits for any phase synchronous motor, has lower voltage endured by power switch, and frequency of armature winding PWM higher than that of power switch, stronger operation capability in subtraction phase.