| 基于LMI的结构主动控制系统故障诊断与隔离设计 |
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| 引用本文： | 曲春绪,霍林生,李宏男. 基于LMI的结构主动控制系统故障诊断与隔离设计[J]. 振动与冲击, 2012, 31(10): 53-58. DOI: |
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| 作者姓名： | 曲春绪 霍林生 李宏男 |
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| 作者单位： | 大连理工大学建设工程学部，辽宁 大连 116024 |
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| 基金项目： | 国家自然科学基金(50708016),国家自然科学基金创新群体(51121005);高等学校学科创新引智计划(B08014);地震行业科研专项(200808074) |
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| 摘 要： | 基于H∞鲁棒控制原理，提出了结构主动控制系统故障检测器的设计方法，形成了结构主动控制系统的故障诊断与隔离技术(fault detection and isolation，FDI)。首先根据H∞控制目标提出了FDI系统的模型，将故障信号的检测问题转化为一个鲁棒控制问题，应用线性矩阵不等式(linear matrix inequality，LMI)算法解出H∞最优控制器，即故障检测器。通过一个三层框架结构的数值算例验证了设计的有效性。该研究工作为结构主动控制系统的健康检测提供了参考，为进一步进行容错控制的研究奠定了基础。
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| 关 键 词： | H∞鲁棒控制 故障诊断与隔离 线性矩阵不等式 容错控制 |
| 收稿时间： | 2011-01-03 |
| 修稿时间： | 2011-06-28 |
Design of fault detection and isolation for active structural control system based on LMI approach |
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| QU Chun-xu,HUO Lin-sheng,LI Hong-nan. Design of fault detection and isolation for active structural control system based on LMI approach[J]. Journal of Vibration and Shock, 2012, 31(10): 53-58. DOI: |
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| Authors: | QU Chun-xu HUO Lin-sheng LI Hong-nan |
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| Affiliation: | Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | The fault detection and isolation(FDI) technique was introduced and the design method of FDI filter in active control system of structure was presented based on H∞ robust control theory.The FDI system model was constructed according to H∞ object which changes the fault detection problem to a robust control problem.The H∞ optimal controller named FDI filter is worked out applying the algorithm of linear matrix inequality(LMI).Simulation results of a three-story building demonstrate the effectiveness of FDI filter.The study provides a reference to the health monitoring of active control system of structure and gives the base of the fault tolerant control. |
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| Keywords: | H∞ robust control fault detection and isolation linear matrix inequality fault tolerant control |
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