一种快速鲁棒自适应故障估计方法设计
收稿日期: 2015-04-09
修回日期: 2015-05-29
网络出版日期: 2015-06-03
基金资助
国家自然科学基金(61473306)
A design of fast robust adaptive fault estimation method
Received date: 2015-04-09
Revised date: 2015-05-29
Online published: 2015-06-03
Supported by
National Natural Science Foundation of China (61473306)
李飞 , 赵国荣 , 胡正高 . 一种快速鲁棒自适应故障估计方法设计[J]. 航空学报, 2016 , 37(4) : 1261 -1271 . DOI: 10.7527/S1000-6893.2015.0160
A fast robust adaptive fault estimation method is designed to reconstruct actuator fault of linear system. The strict positive realness (SPR) condition is relaxed by the adaptive fault estimation observer which simultaneously possesses robustness to disturbances. According to the bounded real lemma, different inequalities about disturbance and the derivative of fault are designed, so both the impact on fault estimation can be freely regulated. With slack variable, different Lyapunov matrices are designed to guarantee less conservatism. The cone complementarity linearization algorithm is utilized to solve the nonlinear matrix inequalities and the optimal observer parameters are obtained subsequently. The simulation results illustrate the effectiveness of the proposed method.
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