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具有间歇性执行器故障的非线性系统自适应CFB控制

乃永强 杨清宇 周文兴 杨莹

乃永强, 杨清宇, 周文兴, 杨莹. 具有间歇性执行器故障的非线性系统自适应CFB控制. 自动化学报, 2022, 48(10): 2442−2461 doi: 10.16383/j.aas.c190673
引用本文: 乃永强, 杨清宇, 周文兴, 杨莹. 具有间歇性执行器故障的非线性系统自适应CFB控制. 自动化学报, 2022, 48(10): 2442−2461 doi: 10.16383/j.aas.c190673
Nai Yong-Qiang, Yang Qing-Yu, Zhou Wen-Xing, Yang Ying. Adaptive CFB control for a class of nonlinear systems with intermittent actuator faults. Acta Automatica Sinica, 2022, 48(10): 2442−2461 doi: 10.16383/j.aas.c190673
Citation: Nai Yong-Qiang, Yang Qing-Yu, Zhou Wen-Xing, Yang Ying. Adaptive CFB control for a class of nonlinear systems with intermittent actuator faults. Acta Automatica Sinica, 2022, 48(10): 2442−2461 doi: 10.16383/j.aas.c190673

具有间歇性执行器故障的非线性系统自适应CFB控制

doi: 10.16383/j.aas.c190673
基金项目: 国家自然科学基金(61633001, 61673315, 61075001)资助
详细信息
    作者简介:

    乃永强:西安交通大学自动化科学与工程学院博士研究生. 主要研究方向为非线性系统, 自适应神经控制, 容错控制.E-mail: yongqiangnai@stu.xjtu.edu.cn

    杨清宇:西安交通大学自动化科学与工程学院教授. 主要研究方向为信息物理融合系统, 智能电网信息物理安全与隐私保护, 复杂系统故障诊断与健康管理, 工业智能控制. 本文通信作者.E-mail: yangqingyu@mail.xjtu.edu.cn

    周文兴:中国航天员科研训练中心助理研究员, 西安交通大学自动化科学与工程学院博士研究生. 主要研究方向为环境控制与生命保障技术, 测量与控制技术, 传感器融合技术, 装备健康管理技术.E-mail: zwxdzxx232@stu.xjtu.edu.cn

    杨莹:北京大学工学院教授. 主要研究方向为复杂动态过程故障诊断, 容错控制与健康管理.E-mail: yy@pku.edu.cn

Adaptive CFB Control for a Class of Nonlinear Systems With Intermittent Actuator Faults

Funds: Supported by National Natural Science Foundation of China (61633001, 61673315, 61075001)
More Information
    Author Bio:

    NAI Yong-Qiang Ph.D. candidate at the School of Automation Science and Engineering, Xian Jiaotong University. His research interest covers nonlinear systems, adaptive neural control, and fault tolerant control

    YANG Qing-Yu Professor at the School of Automation Science and Engineering, Xian Jiaotong University. His research interest covers cyber-physical systems, power grid security, fault diagnosis and health management of complex systems, and intelligent control of industrial process. Corresponding author of this paper

    ZHOU Wen-Xing Research assistant at China Astronaut Research and Training Center, and Ph.D. candidate at the School of Automation Science and Engineering, Xian Jiaotong University. His research interest covers environmental control and life support technology, measurement and control technology, sensor fusion technology, and equipment health management technology

    YANG Ying Professor at the College of Engineering, Peking University. Her research interest covers fault diagnosis, fault tolerant control, and health management of complex dynamic processes

  • 摘要: 控制系统的执行器经常发生各种未知的间歇性故障. 如何有效地处理这些故障对系统的影响是一个难题. 针对一类不确定严格反馈非线性系统, 提出一种自适应CFB (Command filtered backstepping) 控制方案解决了间歇性执行器故障的补偿问题. 利用神经网络逼近控制器中的未知函数, 并采用投影算子实时在线更新控制器中的估计参数使得参数估计值随着故障次数的累积而不断增加的问题被消除. 提出改进的Lyapunov函数证明了所提出的方案能够保证所有闭环信号的有界性, 同时建立了跟踪误差与Lyapunov函数跳变幅度, 最小故障时间间隔, 设计参数之间的关系. 如果Lyapunov函数的跳变幅度越小以及两个连续故障之间的时间间隔越长, 系统的稳态跟踪指标越好. 通过迭代计算建立了暂态跟踪误差指标的均方根型界. 该界表明了通过选择恰当的设计参数, 可改善系统的暂态指标. 仿真结果表明了所提方案的有效性.
  • 图  1  控制结构图 ($x_{\mathrm{c}i}$$\dot{x}_{\mathrm{c}i}$, $i = 2,\cdots,n$, 为滤波器 (11) 的输出. $\alpha_i$, $i = 1,\cdots,n$, 为式 (12) ~ (14) 中定义的虚拟控制律. $\xi_i$, $i = 1,\cdots,n-1$ 为式 (17) 中定义的滤波误差补偿信号)

    Fig.  1  Control block diagram ($x_{\mathrm{c}i}$ and $\dot{x}_{\mathrm{c}i}$ for $i = $$ 2, \cdots,n$ are the outputs of the filter (11). $\alpha_i$ for $i = $$ 1,\cdots,n$ is virtual control law defined in (12) ~ (14). $\xi_i$ for $i = 1,\cdots, $$ n-1$ is the compensating signal of the filtered error defined in (17))

    图  2  实验1中输出 $y $, 期望轨迹 $y_{\mathrm{d}} $ 及跟踪误差 $\bar{z}_1 $

    Fig.  2  Output $y $, desired trajectory $y_{\mathrm{d}} $ and tracking error $\bar{z}_1 $ in Experiment 1

    图  3  实验1中控制输入 $u_1$$u_2$

    Fig.  3  Control inputs $u_1$ and $u_2$ in Experiment 1

    图  4  实验1中命令滤波误差及其补偿信号

    Fig.  4  Command filtered errors and their compensating signals in Experiment 1

    图  5  实验1中自适应参数

    Fig.  5  Adaptive parameter in Experiment 1

    图  6  实验2中输出 $y $, 期望轨迹 $y_{\mathrm{d}} $ 及跟踪误差 $\bar{z}_1 $

    Fig.  6  Output $y $, desired trajectory $y_{\mathrm{d}} $ and tracking error $\bar{z}_1 $ in Experiment 2

    图  7  实验2中控制输入 $u_1$$u_2$

    Fig.  7  Control inputs $u_1$ and $u_2$ in Experiment 2

    图  8  实验2中命令滤波误差及其补偿信号

    Fig.  8  Command filtered errors and their compensating signals in Experiment 2

    图  9  实验2中自适应参数

    Fig.  9  Adaptive parameters in Experiment 2

    图  10  实验3中输出 $y $, 期望轨迹 $y_{\mathrm{d}} $ 及跟踪误差 $\bar{z}_1 $

    Fig.  10  Output $y $, desired trajectory $y_{\mathrm{d}} $ and tracking error $\bar{z}_1 $ in Experiment 3

    图  11  实验3中控制输入 $u_1$$u_2$

    Fig.  11  Control inputs $u_1$ and $u_2$ in Experiment 3

    图  12  实验3中命令滤波误差及其补偿信号

    Fig.  12  Command filtered errors and their compensating signals in Experiment 3

    图  13  实验3中自适应参数

    Fig.  13  Adaptive parameters in Experiment 3

    图  14  实验4中输出 $y $, 期望轨迹 $y_{\mathrm{d}} $ 及跟踪误差 $\bar{z}_1 $

    Fig.  14  Output $y $, desired trajectory $y_{\mathrm{d}} $ and tracking error $\bar{z}_1 $ in Experiment 4

    图  15  实验4中控制输入 $u_1$$u_2$

    Fig.  15  Control inputs $u_1$ and $u_2$ in Experiment 4

    图  16  实验4中命令滤波误差及其补偿信号

    Fig.  16  Command filtered errors and their compensating signals in Experiment 4

    图  17  实验4中自适应参数

    Fig.  17  Adaptive parameters in Experiment 4

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出版历程
  • 收稿日期:  2019-09-24
  • 录用日期:  2020-02-07
  • 网络出版日期:  2022-09-16
  • 刊出日期:  2022-10-14

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