关键词: 永磁同步电机, 矢量控制, 二自由度PID控制, 神经网络

Abstract:

Permanent magnet synchronous motors using the vector control strategy,in order to improve the system tracking performance with anti-interference performance in consideration,can change speed loop control by one degree of freedom PID control to two degrees of freedom PID control.And since PID control parameters can not be change,in order to reduce the system error we can introduce the BP neural network algorithm to the system compensation.Simulation results show that both the system tracking characteristics and anti-jamming performance are improved.

Key words: PMSM;neural network;two degrees PID control;vector control