同步旋转坐标系下新型滑模观测器算法的研究  

Research on a New Sliding Mode Observer Algorithm in Synchronous Rotating Coordinate System

作　　者：丰飞 邵瑛[1] 宗剑 顾乐俊 FENG Fei;SHAO Ying;ZONG Jian;GU Lejun(School of Electrical and Electronic Engineering of Shanghai Institute of Technology,Shanghai 201400,China;Shanghai Institute of Technology,Shanghai 201400,China;State Grid Shanghai Fengxian Power Supply Company,Shanghai 201400,China)

机构地区：[1]上海电子信息职业技术学院电子技术与工程学院,上海201400 [2]上海应用技术大学电气学院,上海201400 [3]国网上海市奉贤供电公司,上海201400

出　　处：《电工技术》2022年第5期60-63,共4页Electric Engineering

摘　　要：针对基于永磁同步电机(PMSM)滑模观测器无位置传感器抖动问题,采用锁相环估计同步电机转子位置和速度,将滑模观测器(SMO)感应电势和锁相环(PLL)结合一体。新型滑模观测器算法能减少转子位置、转速估算误差和复杂度。最后,利用MATLAB仿真对同步坐标系下新型滑模观测器算法进行验证,实验结果表明新型滑模观测器算法对比传统滑模观测器在一定程度上能抑制抖动,动态与控制性能均有所提高。Aiming at the problem of sensorless jitter based on permanent magnet synchronous motor(PMSM)sliding mode observer,a phase-locked loop is used to estimate the rotor position and speed of synchronous motor,and the induced emf of sliding mode observer(SMO)is combined with phase-locked loop(PLL).The novel sliding mode observer algorithm can reduce the estimation error and complexity of rotor position and speed.Finally,MATLAB simulation is used to verify the novel sliding mode observer algorithm in synchronous coordinate system.The experimental results show that the proposed algorithm can suppress jitter to a certain extent and improve the dynamic and control performance compared with the traditional sliding mode observer.

关 键 词：永磁同步电机 无位传感器 滑模观测器 锁相环 

分 类 号：TM341[电气工程—电机]