基于能量的电磁轴承系统建模及控制方法研究  

Energy-based Modeling and Control Approach Researches on Electromagnetic Bearing System

作　　者：李国栋[1] 张庆春[1] 梁迎春[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,黑龙江哈尔滨150001

出　　处：《航空学报》2006年第6期1244-1248,共5页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(5880203)

摘　　要：通过介绍电磁轴承的基本组成,针对电磁轴承系统中的大范围稳定问题,在考虑线圈电感的非线性的情况下,从能量的角度对系统进行了非线性建模。并在构建李雅普诺夫函数及理论分析的基础上提出了基于能量的控制器方法。与传统的PID控制进行仿真对比后,得到了一组可使电磁轴承大范围稳定的参数范围。结果表明,这种方法为非线性控制提供了设计基础,在获得满意的动态响应方面是可行的。The composition of electromagnetic bearings is introduced. The dynamic model is developed with the consideration of the nonlinear of coil＇s inductance according to energy theory. After Lyapunov function is derived, with theoretical analysis, energy-based control design method is discussed in order to solve the global stability problem. A group of parameters that satisfy global stability is obtained by contrast with PID control simulation. The simulation results show that the energy-based control design method provides design basis for nonlinear control system design, and a new method for improving the dynamic response of electromagnetic bearing system（EBS）.

关 键 词：电磁轴承 大范围稳定 非线性 李雅普诺夫函数 

分 类 号：V233.45[航空宇航科学与技术—航空宇航推进理论与工程] TH133.3[机械工程—机械制造及自动化]