磁悬浮永磁直线电动机控制系统非脆弱鲁棒控制的研究  

Research on Non-Fragile Robust Control for Magnetic Levitation Permanent Magnet Linear Motor Control System

作　　者：蓝益鹏[1] 陈其林[1] 胡学成[1] 刘宇菲[1] 

机构地区：[1]沈阳工业大学电气工程学院,沈阳110870

出　　处：《电工技术学报》2016年第7期26-32,共7页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目(50975181)

摘　　要：由于磁悬浮永磁直线电动机控制系统存在参数变化、扰动的不确定性以及控制器参数的摄动,因此对该电动机控制系统提出非脆弱鲁棒控制,以实现数控机床磁悬浮永磁直线电动机驱动系统的精密控制。建立包含磁悬浮永磁直线电动机参数摄动和外界干扰的状态空间模型;基于Riccati不等式,推导出满足非脆弱鲁棒性能指标的H∞控制器的解析表达式;在Matlab环境下对控制系统进行仿真研究,仿真结果表明磁悬浮永磁直线电动机控制系统对参数和扰动的不确定性以及对控制器参数摄动具有鲁棒性,实验结果验证了该控制方法的有效性。In the magnetic levitation permanent magnet linear motor control system,there are the problems of parameter variation,disturbance uncertainties,and parameter perturbation in controller. Therefore,in order to realize the precise control for the levitation permanent magnet linear motor drive system of computerized numerical control machine tools,the non-fragile robust control is proposed. The state-space model considering magnetic levitation permanent magnet linear motor parameters perturbation and external disturbances is firstly set up.Then,based on Riccati inequality,the analytic expressions of the H ∞ controller are derived to meet the nonfragile robust performance. The simulation research is carried out with the Matlab software. Simulation results show that the magnetic levitation permanent magnet linear motor control system has robustness for the parameter and disturbance uncertainties as well as the controller parameter perturbation. The results of the experimental prove the effectiveness of the control method.

关 键 词：磁悬浮 永磁直线电动机 控制系统 非脆弱鲁棒控制 

分 类 号：TM383[电气工程—电机]