基于空间电压矢量脉宽调制技术的永磁同步电动机DTC系统的仿真研究

Simulation Study on DTC System of PMSM Based on SVPWM

在分析永磁同步电动机数学模型的基础上,提出了基于空间电压矢量脉宽调制(SVPWM)的永磁同步电动机直接转矩控制(DTC)系统,同时采用Matlab/Simulink建立了系统的仿真模型,并给出了仿真结果。仿真结果表明,该系统具有对电动机定子磁链的观测精度高、超调小和响应快的特点。

This paper describes a direct torque control system based on Space Vector Pulse Width Modulation（SVPWM） after analyzing mathematical model of Permanent Magnet Synchronous Motor（PMSM）. The system establishes simulation model in Matlab/Simulink environment and offers simulation results. The results show that the system has many advantages such as high accurate observation to the motor sta tor lingkage, small speed overshoot and fast response.