吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (6): 2010-2020.doi: 10.13229/j.cnki.jdxbgxb201606034

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网络化控制系统α/H∞容错控制与网络通讯的协同设计

李亚洁1, 2, 李炜1   

  1. 1.兰州理工大学 电气工程与信息工程学院,兰州 730050;
    2.中国石油兰州石化分公司 自动化研究院,兰州 730060
  • 收稿日期:2015-06-12 出版日期:2016-11-20 发布日期:2016-11-20
  • 通讯作者: 李炜(1963-),女,教授,博士生导师.研究方向:动态系统故障诊断与容错控制.E-mail:liwei@lut.cn
  • 作者简介:李亚洁(1981-),女,博士研究生.研究方向:动态系统容错控制.E-mail:lyajie@petrochina.com.cn
  • 基金资助:
    国家自然科学基金项目(61364011, 61463030); 甘肃省自然科学基金项目(1308RJZA148)

Co-design between α/H∞ fault-tolerant control of networked control system and network communication

LI Ya-jie1, 2, LI Wei1   

  1. 1.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
    2.Automation Institute of Lanzhou Petrochemical Company of Petro China, Lanzhou 730060, China
  • Received:2015-06-12 Online:2016-11-20 Published:2016-11-20

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摘要： 在离散事件触发通讯机制下,针对执行器失效故障及饱和约束,研究了网络化控制系统具有α-安全度的鲁棒H∞容错设计问题。首先,基于离散事件触发通讯机制(DETCS)将闭环故障网络控制系统(NCS)建立成一种具有状态时延且含事件触发条件的模型。其次,基于Lyapunov稳定性理论和文中给出的与安全度相关的3个新定义,推证出了使闭环故障NCS具有扰动抑制性能的时滞/事件共同依赖的具有α-安全度的不变集充分条件,并提出了一种关于容错控制与网络通讯的协同设计方法。最后,仿真验证了该方法的可行性,即在系统设计中兼顾了系统的控制质量和网络的服务质量。

关键词: 自动控制技术, 协同设计, 事件触发控制, 安全度, 执行器饱和, 相容性分析

Abstract: Considering actuator failures and actuator saturation constrains, the robust-tolerant control was investigated for Networked Control System (NCS) with α-safety degree. First, based on Discrete Event-triggered Communication Scheme (DETCS), a networked closed-loop failure system is built, which depends on the state time-delay and event-triggered condition. Second, in combination with Lyapunov stability theory and the three given definitions of safety-degree, the sufficient condition of invariance set with α-safety degree is derived for a networked closed-loop failure system with disturbance rejection performance, which is the time-delay/event-dependent condition. Finally, the co-design approach between fault-tolerant control and network communication is presented. Simulation is carried out and the results verify the feasibility of the proposed method, which not only considers the control quality of system but also guarantees the service quality of the network.

Key words: automatic control technology, co-design, event-triggered control, safety degree, actuator saturation, compatibility analysis

中图分类号: 

  • TP302.8
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