| 频率时变的谐波扰动抑制方法 |
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| 引用本文： | 周新秀,房建成,刘刚,张然.频率时变的谐波扰动抑制方法[J].中国电机工程学报,2011,31(36). |
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| 作者姓名： | 周新秀 房建成 刘刚 张然 |
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| 作者单位： | 1. 新型惯性仪表与导航系统技术国防重点实验室（北京航空航天大学）,北京市海淀区,100191
2. 中国空间技术研究院,北京市海淀区,100094 |
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| 基金项目： | 国家杰出青年科学基金(60825305); 国家重点基础研究发展计划项目(973项目)(2008CB724001)~~ |
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| 摘 要： | 为抑制谐波扰动对控制系统的影响，对频率时变的谐波扰动进行分析，提出两种针对频率时变的谐波扰动的抑制方法：线性反馈方法与基于非线性干扰观测器的方法。线性反馈方法依据于线性矩阵不等式理论，将频率变化的谐波扰动分解为频率固定的谐波扰动与非线性不确定项，采用一般的干扰观测方法对固定频率扰动进行观测，并采用线性反馈方法对非线性不确定项进行抑制。基于非线性干扰观测器的方法直接对谐波扰动进行观测，并采用鲁棒控制器进行干扰补偿。采用李亚普诺夫理论来验证扰动抑制方法的稳定性。将两种扰动抑制方法应用于磁悬浮飞轮电机控制系统，通过仿真与实验结果表明，两种方法具有很好的扰动抑制能力。基于非线性干扰观测器的扰动抑制方法依据扰动的特性设计，具有更好的动态、稳态特性与鲁棒性。
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| 关 键 词： | 谐波扰动 线性矩阵不等式 非线性干扰观测器 变结构控制 磁悬浮 |
A Harmonic Disturbance Suppression Method For Frequency Time-variable Systems |
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| ZHOU Xinxiu,FANG Jiancheng,LIU Gang,ZHANG Ran,Haidian District,Beijing ,China,.Academy of Space Technology,Beijing ,China.A Harmonic Disturbance Suppression Method For Frequency Time-variable Systems[J].Proceedings of the CSEE,2011,31(36). |
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| Authors: | ZHOU Xinxiu FANG Jiancheng LIU Gang ZHANG Ran Haidian District Beijing China Academy of Space Technology Beijing China |
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| Affiliation: | ZHOU Xinxiu1,FANG Jiancheng1,LIU Gang1,ZHANG Ran2(1.Novel Inertial Instrument & Navigation System Technology Key Laboratory of Fundamental Science for National Defense(Beihang University),Haidian District,Beijing 100191,China,2.Academy of Space Technology,Beijing 100094,China) |
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| Abstract: | To weaken the impact of harmonic disturbance on control system,the harmonic disturbance whose frequency is time-varying was analyzed.Two methods were proposed to suppress the harmonic disturbance: linear feedback method and nonlinear disturbance observer method.The linear feedback disturbance rejection method was based on linear matrix inequalities theory.In this method the harmonic disturbance was decomposed into fixed-frequency harmonic disturbance and nonlinear uncertainties.The fixed-frequency harmonic ... |
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| Keywords: | harmonic disturbance linear matrix inequality nonlinear disturbance observer variable structure control magnetically suspended |
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