（23期已送排）表面式永磁同步电动机新型转矩控制

永磁同步电动机的反推控制通常采用电流作为虚拟变量,不适用于转矩需要精确跟踪的场合。本文介绍了一种以转矩和磁链为虚拟变量的反推算法,可以使永磁同步电动机输出转矩和负载转矩的差值在全局范围内快速收敛于零,并且在忽略粘滞摩擦的情况下,控制变量将不受负载的转动惯量变化的影响。该方法适用于负载转矩和转动惯量经常变化的场合,具有一定的参考价值。

A novel torque control of surface permanent magnet synchronous motors

The back-stepping control method for permanent magnet synchronous motor (PMSM) utilizes current as virtual variable which is not adaptive to the condition that the accurate torque is needed.This paper proposes a novel back-stepping algorithm regarding torque and flux linkage as virtual variable which can make the deviation between output torque of PMSM and load torque convergence to zero rapidly on global scope and can make the control variable independent with the load inertia premising viscous friction neglected.This method can be applied for the circumstance that load torque and moment of inertia are mobile possesses,which has reference value to some extension.