全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

控制增益符号未知的非线性系统执行器故障补偿

DOI: 10.3969/j.issn.1006-7043.201310018

Keywords: 执行器故障, 高增益状态观测器, 自适应鲁棒控制, 不确定, Nussbaum增益

Full-Text   Cite this paper   Add to My Lib

Abstract:

针对一类具有方向未知的不确定增益函数和未知执行器故障的不确定非线性系统, 将Nussbaum函数增益与自适应输出反馈设计相结合, 提出一种自适应鲁棒非线性容错控制方案。本方案无需精确获得执行器故障信息, 并通过引入控制参数在线自适应调整技术, 使得控制器对参数、干扰以及故障变化具有很强的鲁棒性, 采用Nussbaum增益方法放松了对高频增益符号已知的假设, 利用鲁棒项抵补偿自适应逼近误差和未知外界干扰的影响, 通过李雅普诺夫方法从理论上严格证明了整个闭环系统信号的有界性和渐进的输出跟踪。仿真结果验证了该方法的有效性。

References

[1]  JIANG B, CHOWDHURY F N. Parameter fault detection and estimation of a class of nonlinear systems using observers[J]. Journal of the Franklin Institute, 2005, 342 (7) : 725-736.
[2]  MICHAEL A, DEMET R. Using unknown input observers for robust adaptive fault detection in vector second-order systems[J]. Mechanical Systems and Signal Processing, 2005, 19 (2): 291-309.
[3]  YAN X, EDWARDS C. Nonlinear robust fault reconstruction and estimation using a sliding mode observer[J]. Automatica, 2007, 43: 1605-1614.
[4]  CHEN W, SAIF M. Observer-based strategies for actuator fault detection, isolation and estimation for certain class of uncertain nonlinear systems[J]. IET Control Theory Application, 2007, 1 (6) : 1672-1680.
[5]  TANG X D, TAO G, JOSHI S M. Adaptive actuator failure compensation for MIMO systems with an aircraft control application[J]. Automatica, 2007, 43(11): 1869-1883.
[6]  陈雪芹,耿云海,张世杰. 基于混合H2/H∞的集成故障诊断与容错控制研究[J]. 宇航学报, 2008, 28(4): 890-897. CHEN Xueqin, GENG Yunhai, ZHANG Shijie. A mixed H2/H∞ approach to integrated fault diagnostic and fault-tolerant control[J]. Journal of Astronautics, 2008, 28 (4) : 891-897.
[7]  WILLIAMSON W R, SPEYER J L, DANG V T, et al. Fault detection and isolation for deep space satellites[J]. Journal of Guidance Control and Dynamics, 2009, 32(5): 1570-1584.
[8]  ZHANG Y, JOE Q S. Adaptive actuator failure compensation for linear systems with matching and unmatching uncertainties[J]. Journal of Processing Control, 2009, 19(6): 985-990.
[9]  杜佳璐,于双和, 郭晨,等,一类控制系数有界的时变非线性系统的自适应鲁棒控制[J]. 控制理论与应用, 2012. 29(3):375-379. DU Jialu, YU Shuanghe, GUO Chen, et al. Adaptive robust control of a class of nonlinear systems with time-varying parameters and bounded control coefficient[J]. Control Theory and Applications, 2012. 29(3):375-379
[10]  XU Z, YAN L. Adaptive output feedback tracking for a class of nonlinear systems[J]. Automatica, 2012, 45(5):1029-1039.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133