基于滑模扰动补偿永磁同步电动机PWM预测控制  

PWM Predictive Control of Permanent Magnet Synchronous Motor Based on Sliding Mode Disturbance Compensation

作　　者：齐歌 高帅军 QI Ge;GAO Shuaijun(Industrial Technology Research Institute,Zhengzhou University,Zhengzhou 450001,Henan,China)

机构地区：[1]郑州大学电气工程学院

出　　处：《电气传动》2019年第12期17-21,共5页Electric Drive

基　　金：河南省科技攻关计划资助项目（122102210098）

摘　　要：针对表贴式永磁同步电动机PWM电流预测控制中电机模型失配以及参数摄动引起的电流稳态误差和振荡问题,提出基于滑模扰动补偿的PWM电流预测控制算法。在传统PWM电流预测控制基础上,将参数摄动引入电机电压方程,分别构建交、直轴滑模扰动补偿器对电流环输出电压进行实时性修正,抑制电机参数变化对控制系统的影响,并通过李雅普诺夫理论分析验证所提算法的稳定性。仿真结果表明,所提方法能够实现快速跟踪控制,提高了PWM预测控制系统对内、外部扰动的稳定性。To solve current steady-state error and oscillation caused by motor model mismatch and parameter perturbation in PWM current predictive control of the permanent magnet synchronous motor(PMSM),a PWM current prediction control algorithm based on sliding mode disturbance compensation was proposed.Based on the traditional PWM current predictive control,the parameter perturbation was introduced into the motor voltage equation,and the sliding mode disturbance compensators of d,q axis were constructed to correct the current loop output voltage in real time and suppress the influence of the motor parameter changes on the control system.The stability of the proposed algorithm was verified by Lyapunov theory.The simulation results show that the proposed method can achieve fast tracking control and improve the stability of PWM predictive control system to internal and external disturbances.

关 键 词：永磁同步电动机 预测控制 滑模控制 

分 类 号：TM273[一般工业技术—材料科学与工程]