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作 者:张婷婷[1,2] 曹莉[1] 刁小燕[1] 朱熀秋[1]
机构地区:[1]江苏大学电气信息工程学院,镇江212013 [2]上海空间电源研究所,上海200235
出 处:《系统仿真学报》2012年第4期748-755,共8页Journal of System Simulation
基 金:国家自然科学基金(60974053);教育部高校博士点基金(20093227110002);江苏省自然科学基金(BK2009204);江苏高校优势学科建设工程资助项目(苏政办发[2011]6号)
摘 要:在阐述二自由度无轴承同步磁阻电机和三自由度混合磁轴承工作原理基础上,推导出五自由度无轴承同步磁阻电机状态方程,采用逆系统方法将五自由度无轴承同步磁阻电机这一非线性、强耦合的多输入多输出系统解耦并线性化为伪线性系统,并应用线性系统理论设计闭环控制器,最后采用Matlab软件环境构建了仿真系统,对转子起浮特性及解耦性能进行了仿真。仿真结果表明:这种解耦控制策略能够实现五自由度无轴承同步磁阻电机各个被控量之间的动态解耦,并且系统具有良好的动、静态性能。Based on explanation of the operation principle for the 2 degrees of freedom(2-DOF) bearingless synchronous reluctance(BSRM) and 3-DOF magnetic bearing,the state equations of 5-DOF BSRM were deduced.As a multi-variable,nonlinear and strong-coupled system,the 5 degrees of freedom(5-DOF) bearingless synchronous reluctance motor(BSRM) was decoupled into pseudo-linear system using inverse system method.The linear system theory was proposed to design the closed-loop controllers.The simulation system was constructed by using Matlab software,and suspension characteristic of rotor and decoupling performance were simulated.The simulation results show that this kind of control strategy can realize dynamic decoupling among the controlled variables of the 5-DOF BSRM,and the control system has good dynamic and static performance.
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