基于矢量控制的五相永磁同步电机相电流重构方法研究

摘要

Considering the problem of over many current sensors used in five-phase permanent magnet synchronous motor control system,a new method of current reconstruction for five-phase permanent magnet synchronous motor was proposed.This method used only two current sensors to realize full acquisition of five-phase current,could effectively reduce the cost and complexity of the hardware circuit.The reconstruction precision and speed could meet the needs of five-phase permanent magnet synchronous motor control.Finally,the proposed method was validated in MATLAB.Results showed the correctness and effectiveness of the proposed method.%针对五相永磁同步电机控制需要电流传感器数量多、成本高的问题,提出了一种五相永磁同步电机相电流重构方法.它只使用两个电流传感器便可实现对五相电流的全采集,能有效减少硬件电路的成本和复杂性,重构精度和速度能够满足五相电机控制的需要.最后在MATLAB仿真中对所提方法进行验证,仿真结果证实了所提方法的正确性和有效性.