AN OUTPUT FEEDBACK BASED ADAPTIVE ROBUST FAULT TOLERANT CONTROL SCHEME FOR A CLASS OF NONLINEAR SYSTEMS

被引：0
|
作者：
Gayaka, Shreekant [1 ]
Yao, Bin [1 ]
机构：
[1] Purdue Univ, Ray W Herrick Lab, W Lafayette, IN 47906 USA
来源：
PROCEEDINGS OF THE ASME DYNAMIC SYSTEMS AND CONTROL CONFERENCE 2009, PTS A AND B | 2010年
关键词：
ACTUATOR FAILURE COMPENSATION;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper we present an output feedback based Adaptive Robust Fault Tolerant Control (ARFTC) strategy to solve the problem of output tracking in presence of actuator failures, disturbances and modeling uncertainties for a class of nonlinear systems. The class of faults addressed here include stuck actuators, actuator loss of efficiency or a combination of the two. We assume no a priori information regarding the instant of failure, failure pattern or fault size. The ARFTC combines the robustness of sliding mode controllers with the online learning capabilities of adaptive control to accommodate sudden changes in system parameters due to actuator faults. Comparative simulation studies are carried out on a nonlinear hypersonic aircraft model, which shows the effectiveness of the proposed scheme over back-stepping based robust adaptive fault-tolerant control.
引用
收藏
页码：1079 / 1086
页数：8
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