基于模糊理论的内置式永磁同步电机弱磁控制仿真研究

Weak Magnetic Control of Permanent Magnet Synchronous Motor Based on Fuzzy Theory

针对内置式永磁同步电机在弱磁运行状态下存在扰动时dg轴电流波动较大的问题,提出了一种基于模糊理论的智能控制策略,借助Matlab/Simulink软件搭建仿真模型,研究了该控制策略在永磁同步电机弱磁运行区突加负载时抑制dg轴电流波动的效果。仿真结果表明该控制策略在弱磁区突加负载时确实可以让电流波动减小。

As internal permanent magnet synchronous motor(IPMSM) running at weak magnet field with disturbance of a fluctuated current of axis, an intelligent control strategy is put forward based on fuzzy theory. By the means of simulation model built by Matlab/Simulink software, and the functions on restraining dq axis current fluctuation by the control strategy during the operation on weak magnet with sudden load of permanent magnet synchronous motor is investigated. The simulation results show that control strategy can reduce the fluctuation of currents during weak magnet operation with an accident added load.