磁悬浮高速电机系统建模与控制  

Modeling and control of magnetic suspension high-speed motor

作　　者：张涛 刘欣凤[1] 莫丽红[1] 倪伟 桑英军 丁卫红 ZHANG Tao;LIU Xin-feng;MO Li-hong;NI Wei;SANG Ying-jun;DING Wei-hong(Faculty of Automation,Huaiyin Institute of Technology,Huaian 223005,China;Jiangsu Engineering Research Center on Meteorological Energy Using and Control,Nanjing University of Information Science and Technology,Nanjing 210044,China;School of IoT Engineering,Jiangnan University,Wuxi 214122,China)

机构地区：[1]淮阴工学院自动化学院,江苏淮安223005 [2]南京信息工程大学江苏省气象能源利用与控制工程技术研究中心,江苏南京210044 [3]江南大学物联网工程学院,江苏无锡214122

出　　处：《电机与控制学报》2018年第4期98-104,共7页Electric Machines and Control

基　　金：江苏省自然科学基金(BK20130418);第61批中国博士后科学基金;江苏省高校自然科学研究项目(13KJB470001);江苏省六大人才高峰高层次人才项目(GDZB-009);淮安市国际科技合作项目(HAC201614)

摘　　要：为实现磁悬浮电机的稳定悬浮运行,研究一种基于最优控制理论的控制器设计策略。在分析磁悬浮电机结构和工作原理的基础上,建立悬浮转子的运动方程,构建以气隙偏移量和控制电流为状态变量的系统状态方程,经线性化处理后,采用最优控制理论,设计闭环控制器。构建闭环系统仿真与试验平台并进行仿真与试验研究,测量径向位移和转子几何中心运动轨迹波形。仿真和实验研究结果表明,基于最优控制理论的闭环控制器可实现磁悬浮电机的稳定悬浮运行,并具有较好的动静态性能。To realize the stable suspension operation of magnetic suspension motor,a controller design algorithm is presented using the optimal control theory.Based on analyzing the structure and operation principle of the magnetic suspension motor,the motion equation of suspension rotor was built,and then the state equation was established by taking air gap offset and control current as state variables.This state equation was further linearized and thus the linear optimal control theory can be applied to design the closed-loop controller.To show the effectiveness of the presented method,the simulation and experimental research were carried out.The experimental and simulation results show that the designed controller can realize the high-speed suspension operation of magnetic levitation motor with good dynamic and static performances.

关 键 词：高速电机 磁悬浮电机 磁轴承 状态方程 最优控制 

分 类 号：TM301.2[电气工程—电机]