电工技术学报2018，Vol.33Issue(9)：1985-1993,9.DOI:10.19595/j.cnki.1000-6753.tces.170266
基于周期学习扰动观测器的永磁直线同步电机伺服系统控制
Control of Permanent Magnet Linear Synchronous Motor Servo System Based on Periodic Learning Disturbance Observer
摘要
Abstract
To solve the problem of periodic disturbance in repetitive motion tasks for permanent magnet linear synchronous motor (PMLSM) servo system, a novel periodic learning disturbance observer (PLDOB) was proposed. Firstly, the dynamic model of PMLSM with the uncertainties was established, and a lumped disturbance was estimated by the disturbance observer (DOB). It consists of parametric variation, unmodeled dynamics, friction force and force ripple; and then, it was updated for each time period by the periodic learning law. This scheme requires no mathematical models of disturbances and control laws of model parameters, and it was designed from the point of view of disturbances directly. Also, it is possible to compensate for disturbances above as well as below the bandwidth of the Q-filter of DOB. Finally, the system experimental results confirm that the proposed scheme is effective and feasible. The tracking and disturbance rejection performance of system are improved greatly.关键词
永磁直线同步电机/周期学习扰动观测器/周期性扰动/扰动补偿/跟踪误差Key words
Permanent magnet linear synchronous motor/periodical learning disturbance observer/periodic disturbance/disturbance compensation/tracking error分类
信息技术与安全科学引用本文复制引用
赵希梅,武文斌..基于周期学习扰动观测器的永磁直线同步电机伺服系统控制[J].电工技术学报,2018,33(9):1985-1993,9.基金项目
国家自然科学基金项目(51175349)、辽宁省自然科学基金计划重点项目(20170540677)和辽宁省教育厅科学技术研究项目(LQGD2017025)资助. （51175349）
