| 双电磁铁悬浮系统的非线性解耦控制器设计 |
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| 作者姓名： | LIU De-Sheng LI Jie ZHANG Kun |
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| 作者单位： | 1.College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073 |
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| 基金项目： | Supported by National Natural Science Foundation of P. R. China （60404003）, the Natural Science Foundation of Hunan Province （03JJY3108）, and Fok Ying-Tong Education Foundation （94028） Received November 3, 2004; in revised form November 22, 2005 |
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| 摘 要： | Aiming at the coupling characteristic between the two groups of electromagnets embedded in the module of the maglev train, a nonlinear decoupling controller is designed. The module is modeled as a double-electromagnet system, and based on some reasonable assumptions its nonlinear mathematical model, a MIMO coupling system, is derived. To realize the linearization and decoupling from the input to the output, the model is linearized exactly by means of feedback linearization, andan equivalent linear decoupling model is obtained. Based on the linear model, a nonlinear suspension controller is designed using state feedback. Simulations and experiments show that the controller can effectually solve the coupling problem in double-electromagnet suspension system.
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| 关 键 词： | Double-electromagnet nonlinear decoupling suspension controller feedback linearization |
| 收稿时间： | 2004-11-03 |
| 修稿时间： | 2004年11月3日 |
Design of Nonlinear Decoupling Controller for Double-electromagnet Suspension System |
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| LIU De-Sheng LI Jie ZHANG Kun.Design of Nonlinear Decoupling Controller for Double-electromagnet Suspension System[J].Acta Automatica Sinica,2006,32(3):321-328. |
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| Authors: | LIU;De-Sheng;LI;Jie;ZHANG;Kun |
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| Affiliation: | 1.College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073 |
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| Abstract: | Aiming at the coupling characteristic between the two groups of electromagnets embedded in the module of the maglev train, a nonlinear decoupling controller is designed. The module is modeled as a double-electromagnet system, and based on some reasonable assumptions its nonlinear mathematical model, a MIMO coupling system, is derived. To realize the linearization and decoupling from the input to the output, the model is linearized exactly by means of feedback linearization, and an equivalent linear decoupling model is obtained. Based on the linear model, a nonlinear suspension controller is designed using state feedback. Simulations and experiments show that the controller can effectually solve the coupling problem in double-electromagnet suspension system. |
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| Keywords: | Double-electromagnet nonlinear decoupling suspension controller feedback linearization |
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