基于矢量控制的永磁同步电机控制系统的仿真

摘要

On the basis of the mathematical model of Permanent Magnet Synchronous Motor (PMSM),speed control system using the vector control theory is introduced in this paper. In Matlab6.5/Simulink,the isolated blocks, such as PMSM block, coordinate transformation block,three phase current source inverter controller block, PI modulation block etc are modeled. Then a double closed loop control system which consists of the inner current-loop and the outer speed-loop is constructed. The result of simulation testified the Vector Control theory is correct and realizable.%介绍了三相永磁同步电机常用的坐标系以及不同坐标系下的数学模型,并通过采用矢量控制方法实现电机的转速控制.在MATLAB6.5中的Simulink环境下,通过建立PMSM本体、坐标变换、电源逆变器、PI调节器等模块,搭建了永磁同步电机控制系统的速度和电流双闭环仿真模型.仿真结果验证了永磁同步电机矢量控制的正确性与可行性,为永磁同步电机控制系统设计提供了理论基础.