永磁同步电机自抗扰控制系统设计及扩张状态观测器参数特性分析

Design of Active Disturbance Resistant Control System for PMSM and Analysis of Parameter Characteristics of Extended State Observer

针对传统永磁同步电机矢量控制系统采用的PI速度控制算法存在参数鲁棒性差、抗干扰能力弱等问题,提出了一种基于一阶线性自抗扰控制(LADRC)速度控制器的永磁同步电机矢量控制方案。分析了线性扩展状态观测器(LESO)的跟踪收敛性能和噪声滤波性能。然后总结了LESO的带宽参数设置规则。最后通过仿真验证了LADRC速度控制器的性能和LESO带宽参数设置规则的有效性。

Because the PI speed control algorithm used in the traditional Permanent magnet synchronous machine(PMSM)vector control system has some problems such as poor parameter robustness and weak anti-interference ability,this paper proposes a PMSM vector control scheme based on first order linear active disturbance rejection control(LADRC)speed controller.The tracking convergence performance and noise filtering performance of the core of LADRC,the linear expansion state observer(LESO),are analysed in frequency domain.Then,this paper summarizes the bandwidth parameter setting rules of LESO.Finally,the performance of LADRC speed controller and the validity of the bandwidth parameter setting rule of LESO are verified by simulation.