基于模糊PI的永磁同步电机矢量控制研究

Study on Permanent Magnet Synchronous Motor Vector Control Based on Fuzzy PI

通过对永磁同步电机(PMSM)数学模型的分析,建立了基于SVPWM的永磁同步电机矢量控制系统。针对传统PI速度调节器(ASR)的永磁同步电机矢量控制系统,存在着速度脉动率大、频率响应慢,抗干扰能力较差的问题,提出了一种参数自整定模糊PI速度调节器,并在Matlab/Simulink环境下建立了系统仿真模型。仿真结果表明,采用了参数自整定模糊PI速度调节器的系统,抗干扰性更强,响应速度更快,无超调。

Through the analysis of the mathematic model of permanent magnet synchronous motor, established the permanent magnet synchronous motor vector control system based on SVPWM. Based on traditional PI speed regulator （ASR）, such weakness as big speed pulse rate, slow frequency response and low stability occur in the permanent magnet synchronous motor vector control system, put forward a parameter self-tuning fuzzy PI speed regulator, and under the environment of Matlab/Simulink simulation model was established. The simulation results show that the system parameters self-tuning fuzzy PI speed regulator, stronger anti-interference, faster response, no overshoot.