| 永磁偏置磁轴承混合模糊控制器设计 |
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| 引用本文： | 肖凯,张育林,刘昆.永磁偏置磁轴承混合模糊控制器设计[J].计算机仿真,2008,25(11). |
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| 作者姓名： | 肖凯 张育林 刘昆 |
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| 作者单位： | 国防科技大学航天与材料工程学院,湖南长沙,410073;中国酒泉卫星发射中心,甘肃酒泉,732750 |
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| 基金项目： | 国防预研资助项目
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| 摘 要： | 永磁偏置磁轴承属于一类复杂的控制系统,具有显著的非线性特性,采用一般的线性控制难以达到满意的效果.为此,结合水磁偏置磁轴承的工作特性,采用等效电流法,建立了非线性控制模型.并以该模型为研究对象,综合考虑系统的动态响应特性和尤静差的要求,提出了模糊PD与线性位置积分相结合的混合控制策略,并基于模糊控制理论设计了混合模糊控制器.最后,通过仿真实验表明,应用该控制器,永磁偏置磁轴承系统的动静态特性良好,且具备较好的鲁棒性.
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| 关 键 词： | 模糊控制 非线性 永磁偏置磁轴承 等效电流 |
Design of Mixed Fuzzy Controller for Permanent Magnet Biased Magnetic Bearing |
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| XIAO Kai,ZHANG Yu-lin,LIU Kun.Design of Mixed Fuzzy Controller for Permanent Magnet Biased Magnetic Bearing[J].Computer Simulation,2008,25(11). |
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| Authors: | XIAO Kai ZHANG Yu-lin LIU Kun |
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| Affiliation: | XIAO Kai1,ZHANG Yu-lin2,LIU Kun1(1.College of Astronautics , Material Engineering,National University of Defense Technology,Changsha Hunan 410073,China,2.Jiuquan Satellite Launch Center,Jiuquan Gansu 732750,China) |
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| Abstract: | Because permanent magnet biased magnetic bearing is a kind of complex control system,and has obvious nonlinearity,general linear control method can't achieve good effect.So,considering the working characteristic of permanent magnet biased magnetic bearing,a method of equivalent current is used to build nonlinear model first.Then,considering dynamic and static response characteristics,a mixed control strategy combining fuzzy PD with linear PI is presented,and the mixed fuzzy controller is designed according ... |
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| Keywords: | Fuzzy control Nonlinearity Permanent magnet biased magnetic bearing Equivalent current |
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