| 直升机桨距调节助力器电液加载系统的H∞控制 |
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| 引用本文： | 刘国建,李运华,郑琦,郭中伟.直升机桨距调节助力器电液加载系统的H∞控制[J].北京航空航天大学学报,2011,37(2):140-143. |
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| 作者姓名： | 刘国建 李运华 郑琦 郭中伟 |
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| 作者单位： | 北京航空航天大学,自动化科学与电气工程学院,北京,100191;北京航空航天大学,自动化科学与电气工程学院,北京,100191;北京航空航天大学,自动化科学与电气工程学院,北京,100191;北京航空航天大学,自动化科学与电气工程学院,北京,100191 |
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| 基金项目： | 航空科学基金资助项目(2009ZD51040) |
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| 摘 要： | 基于对某直升机桨距调节液压助力器地面试验用电液负载模拟器的原理分析,建立了电液加载系统的动态模型．由于电液加载系统中存在着结构参数难以精确获取和伺服阀负载流量非线性等不确定性因素,采用传统的经典控制理论设计出的控制器难以奏效,为此研究了基于H∞理论的电液加载系统的鲁棒控制策略．选择适当的权函数,利用混合灵敏度的方法设计并且采用基于线性矩阵不等式的算法求解出鲁棒控制器．给出了使用鲁棒力控制器的试验结果,结果证明所设计鲁棒力控制器的有效性和优越性．
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| 关 键 词： | 电液负载模拟器 力控制 鲁棒控制 混合灵敏度 |
| 收稿时间： | 2009-12-01 |
Application of H∞ theory in electro-hydraulic loading system of helicopter pitch adjusting booster |
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| Liu Guojian,Li Yunhua,Zheng Qi,Guo Zhongwei.Application of H∞ theory in electro-hydraulic loading system of helicopter pitch adjusting booster[J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(2):140-143. |
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| Authors: | Liu Guojian Li Yunhua Zheng Qi Guo Zhongwei |
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| Institution: | School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | A dynamic model of electric-hydraulic loading system was established based on the principle analysis of electro-hydraulic load simulator,which was applied to the earth-experiment of hydraulic assistor for the helicopter pitch adjusting.Controllers designed by conventional control theory were not effectual because of the uncertain factors such as difficulties in access to precise structure parameters of electric-hydraulic loading system and nonlinearity of loading flux in servo valve.Therefore the robust con... |
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| Keywords: | electro-hydraulic load simulator force control robust control mixed sensitivity |
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