中立系统的H_(∞)故障检测方法研究及应用  

Research and Application of H_(∞) Fault Detection Methods for Neutral Systems

作　　者：李艳辉[1,2] 张金伟 LI Yanhui;ZHANG Jinwei(Bohai Rim Energy Research Institute,Northeast Petroleum University,Qinhuangdao 066004,China;School of Electrical Information and Engineering,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]东北石油大学环渤海研究院,河北秦皇岛066004 [2]东北石油大学电气信息工程学院,黑龙江大庆163318

出　　处：《吉林大学学报（信息科学版）》2022年第6期979-983,共5页Journal of Jilin University（Information Science Edition）

基　　金：黑龙江省自然科学基金资助项目(LH2020F004)。

摘　　要：为准确检测出系统的故障信号,保障系统安全稳定运行,通过搭建故障检测滤波器的方法,研究了带有时变时滞的中立系统的H_(∞)故障检测问题。选取时滞相关的Lyapunov函数使故障检测系统渐近稳定并满足H_(∞)性能准则,同时运用线性矩阵不等式(LMI:Linear Matrix Inequality)技术将故障检测滤波器的设计问题转化为LMI的凸优化问题。最后将该方法应用于双级溶解槽系统,仿真结果证明,所提方法能快速准确地检测出系统故障,与时滞无关的Lyapunov函数相比,该方法可以降低系统设计的保守性。In order to accurately detect the fault signal of the system, and to ensure safe and stable operation, the method of building fault detection filter, the H_(∞)fault detection problem of neutral systems with time-varying delays is studied. The delay-dependent Lyapunov function is selected to make the fault detection system is asymptotically stable and satisfies H_(∞)performance criterion. And the LMI(Linear Matrix Inequality) technique is applied to converted the design problem of fault detection filter into a convex optimization problem of LMI. Finally, the proposed method is applied to two-stage dissolution tank system. Simulation results show that the proposed method can detect system faults quickly and accurately, and the proposed method can reduce the conservatism of system design compared with delay-independent Lyapunov function.

关 键 词：中立系统 故障检测 LYAPUNOV函数 线性矩阵不等式 双级溶解槽 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]