基于广义超螺旋算法的无速度传感器永磁同步电机有限时间速度控制

Finite-time speed sensorless control of permanent magnet synchronous motor based on generalized super-twisting algorithm

针对三相表贴式永磁同步电机,本文首先根据广义超螺旋算法(GSTA),设计出广义超螺旋观测器,能够估计电机的转子位置和转速.然后基于上述设计的广义超螺旋无速度传感器,结合有限时间控制理论,设计出有限时间速度控制器,可以实现基于无速度传感器下的有限时间速度调节.通过仿真和实验验证了上述方法的有效性.

Aiming at the three-phase surface-mounted permanent magnet synchronous motor(PMSM),this paper firstly designs a generalized super-twisting observer based on the generalized super-twisting algorithm(GSTA),which can estimate the rotor position and speed of the motor.Secondly,based on the generalized super-twisting sensorless and combined with the finite-time control theory,a finite-time speed controller is designed,which can realize the finite-time speed regulation based on the sensorless.Simulation and experiment verify the effectiveness of the above methods.