无速度传感器感应电机控制的新方法

目前针对无转速传感器感应电机的控制已经提出了多种控制算法,这些方法主要是用来估计磁链和转速来进行电机的控制.提出了一种新的控制方法,这种方法是估计电流的,而非估计磁链和转速,其中通过控制定子电压使电机的数学模型中的定子电流和实际电机的定子电流相等,通过仿真证实了所提出方法的可行性.

New Scheme for Speed-sensorless Control of Induction Motor

Various control algorithms have been proposed for the speed-sensorless control of the induction motor.These sensorless algorithms are mainly based on the speed feedback with the flux and speed estima- tions.A new scheme for the speed-sensorless control of the induction motor was proposed.The proposed scheme is based on the current estimation without the flux and speed estimation,in which the controlled stator voltage is applied to the induction motor so that the difference between stator current of the mathematical mod- el and motor may be forced to decay to zero.The feasibility of the proposed scheme is verified through simula- tion and experiment.