基于干扰观测器的感应直线伺服电机解耦控制  

Decoupling control based on disturbance observer of linear induction motor

作　　者：韩永强[1] 郭庆鼎[1] 刘德君[2] 

机构地区：[1]沈阳工业大学电气工程学院,沈阳110023 [2]北华大学电气工程学院,吉林吉林132021

出　　处：《沈阳工业大学学报》2005年第2期179-182,共4页Journal of Shenyang University of Technology

基　　金：国家自然科学基金资助项目(59875061)

摘　　要：感应直线电机具有结构简单、坚固耐用、适应性强、成本低的特点,因而在各个领域获得广泛应用.但由于感应直线电机是一个非线性、多变量、强耦合的复杂对象,要实现高性能的控制效果,必须对其进行解耦,应用多变量非线性的逆系统理论,通过状态反馈进行动态解耦控制,从而将感应直线电机分解为转速和转子磁链独立的子系统,然后应用线性系统理论进行控制器的设计.为了抑制扰动,采用干扰观测器进行扰动补偿.仿真结果表明,这种控制方案有较好的动态和静态特性及抗扰性.Linear induction motors have some advantages,such as simple structure,good durability,low-cost,so they are is used in many fields.However,a linear induction motor system is nonlinear,multivariable and strong coupling.To gain good performances,a decoupling control approach based on dynamic inversion is employed,so this method makes the complicated system become simple and linear,and the linear theories can be used to design controllers.The disturbance is suppressed by a disturbance observer.The simulation results indicate the proposed scheme has better dynamic and static characteristics and robustness.

关 键 词：感应直线电机 逆系统 动态解耦控制 干扰观测器 反馈线性化 非线性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]