| 引用本文: | 刘恒坤,常文森,尹力明.磁悬挂天平的变结构控制.[J].国防科技大学学报,2002,24(3):103-106.[点击复制] |
| LIU Hengkun,CHANG Wensen,YIN Liming.Variable Structure Control of Magnetic Suspension and Balance System[J].Journal of National University of Defense Technology,2002,24(3):103-106[点击复制] |
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| 磁悬挂天平的变结构控制 |
| 刘恒坤, 常文森, 尹力明 |
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(国防科技大学 机电工程与自动化学院，湖南 长沙 410073)
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| 摘要: |
| 鉴于磁悬挂天平系统强烈的非线性特性及存在的多种不确定性，针对非匹配不确定性情况设计了变结构控制器。根据对悬浮时模型受力图的分析及其模型两端电磁力、电流和电压的平衡关系，并以Y轴方向受力为例，讨论了磁悬挂天平的非线性变结构设计过程。该设计的目的是使镇定误差趋近于0，其设计步骤包括期望性能到期望力的传递、满足滑动模态可达条件的控制力到控制电压的传递、控制电压的求解。同时对设计的结果进行了仿真分析，仿真结果表明磁悬挂天平的变结构控制系统具有良好的动态性能。 |
| 关键词: 变结构控制 磁悬挂天平 滑动模态 |
| DOI： |
| 投稿日期：2001-12-09 |
| 基金项目:国家“九五”部委项目资助(9580) |
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| Variable Structure Control of Magnetic Suspension and Balance System |
| LIU Hengkun, CHANG Wensen, YIN Liming |
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(College of Mechatronics Engineering and Automation, National Univ.of Defense Technology, Changsha 410073, China)
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| Abstract: |
| In view of the strong nonlinear feature of the magnetic suspension and balance system,variable structure controller is designedTaking the Y axis as an example,the procedure of designing nonlinear variable structure controller is discussed.The aim is to keep the error as zero.The design step includes three aspects.The design consequence is emulated at the same time.The result of the emulation shows that the dynamic properties of the system are upstanding. |
| Keywords: variable structure control magnetic suspension and balance system gliding mode |
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