自抗扰和新型滑模观测器的PMSM无传感器控制  

Sensorless Control of PMSM Basedon Active Disturbance Rejection and New Sliding Mode Observer

作　　者：高俊岭[1] 黄豪磊 张磊[1] 田琳 GAO Jun-ling;HUANG Hao-lei;ZHANG Lei;TIAN Lin(School of Electrical and Information Engineering,Anhui University of Science and Technology,Huainan 232001,Anhui,China)

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232001

出　　处：《兰州文理学院学报（自然科学版）》2023年第6期41-45,共5页Journal of Lanzhou University of Arts and Science(Natural Sciences)

摘　　要：针对中高速情况下,带有滑模控制器的传统控制方法存在动态响应慢、抖振较大、转子转速及位置信息估计精度差等问题,设计一种自抗扰控制结合新型滑模观测器的控制策略.速度环采用自抗扰速度控制器改善系统的动态响应速度和抗扰性能;新型滑模观测器采用边界层厚度随转子速度动态可调的正弦输入函数作为切换函数,有效抑制了观测器抖振;基于反电动势模型设计反电动势观测器,省去了低通滤波器,提高了转速和转子位置的估计精度.通过仿真实验验证了本文方法的有效性和可行性.Aiming at the problems of traditional control methods with sliding mode controllers such as slow dynamic response,large chattering,and poor estimation accuracy of rotor speed and position information at medium and high speeds,a control strategy based on auto disturbance rejection control and a new sliding mode observer is designed.The speed loop adopts an auto disturbance rejection speed controller to improve the dynamic response speed and disturbance rejection performance of the system.The new sliding mode observer uses a sinusoidal input function whose boundary layer thickness is dynamically adjustable with rotor speed as a switching function,effectively suppressing the observer chattering.The back electromotive force observer is designed based on the back electromotive force model,which eliminates the low-pass filter and improves the estimation accuracy of rotational speed and rotor position.The effectiveness and feasibility are verified through simulation experiments.

关 键 词：PMSM 无传感器控制 自抗扰控制器 新型滑模观测器 

分 类 号：TM351[电气工程—电机]