A Multiple-Model Based Adaptive Actuator Failure Compensation Scheme for Nonlinear Systems With Dynamic Mutations

被引：0
|
作者：
Wen L.-Y. [1 ,2 ]
Tao G. [2 ]
Jiang B. [1 ]
Yang J. [1 ]
机构：
[1] College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
[2] Department of Electrical and Computer Engineering, University of Virginia, Charlottesville
来源：
Zidonghua Xuebao/Acta Automatica Sinica | 2022年 / 48卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Actuator failures; Adaptive control; Dynamic mutation; Failure compensation; Multiple-model control; Output tracking;
D O I：
10.16383/j.aas.c200318
中图分类号：
学科分类号：
摘要：
In this paper, a multiple-model switching based adaptive failure compensation scheme is developed for feedback linearizable nonlinear systems with uncertain actuator failures and dynamic mutations, for fast and accurate actuator failure compensation. To deal with uncertain failure pattern conditions, multiple adaptive controllers are designed based on multiple model parameter estimation. A control switching mechanism is employed based on finding the minimal performance cost index for selecting the best controller for failure compensation. The designed multiple model adaptive control scheme can ensure that all closed-loop system signals are bounded and the system output asymptotically tracks the reference output in presence of finite number of uncertain actuator failures. Moreover, it can ensure the tracking error is small in the mean for persistent failures. Simulation results for an aircraft dynamic model are shown to verify the effectiveness of our designed control method Copyright ©2022 Acta Automatica Sinica. All rights reserved.
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收藏
页码：207 / 222
页数：15
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