基于预期电压矢量调制的SynRM的直接转矩控制

Direct Torque Control of SynRM Based on Expected Voltage Vector Modulation

针对同步磁阻电机直接转矩控制系统存在磁链、转矩脉动过大这一弊端,借鉴现有永磁同步电机直接转矩控制的相关理论,设计一种基于预期电压矢量法和空间矢量脉宽调制技术的同步磁阻电机直接转矩控制。利用Simulink对控制系统进行仿真,从实验结果可以得出,该控制系统较以往直接转矩控制转矩和磁链的脉动小,速度响应快,具有良好的动态性能,减小了对电气设备的冲击,增大设备运行寿命。

Aiming at the disadvantages of flux linkage and excessive torque ripple in the direct torque control system of synchronous reluctance motor,based on the related theory of direct torque control of permanent magnet synchronous motor,a kind of expected voltage vector method and space vector pulse are designed.Wide-modulation synchronous reluctance motor direct torque control.The simulation system is simulated by Simulink.It can be concluded from the experimental results that the control system has smaller pulsation and faster response than the direct torque control torque and flux linkage,and has good dynamic performance and reduces the electrical equipment.