永磁同步电机模型多步预测电流控制OA

In this article,an improved multi-step finite control set model predictive current control(FCS-MPCC)based on adaptive integral extended state observer(AIESO)is proposed for permanent magnet synchronous motor(PMSM).The improved multi-step FCS-MPCC based on sector is introduced in the current loop.The elements of the voltage vector set are reduced with different sector division methods,so it could reduce the computational burden to some extent.Meanwhile,considering that the high-gain extended state observer(ESO)will obtain faster convergence and better tracking accuracy in theory,the system disturbance rejection can be enhanced,but the noise suppression performance will become poor.When system subject to disturbance,the adaptive gain will increase to enhance the system disturbance rejection and become small to improve the noise suppression in steady-state,especially in the disturbed by time-varying disturbance,the small gain in the steady state will lead to poor steady-state tracking accuracy.Finally,the experimental results verify the effectiveness of the proposed method.