双端动态事件触发下信息物理系统输出反馈H∞控制

兰州理工大学学报 ›› 2022, Vol. 48 ›› Issue (3): 77-85.

• 自动化技术与计算机技术 • 上一篇下一篇

双端动态事件触发下信息物理系统输出反馈H_∞控制

王志文^*1,2,3, 陈万杰¹, 孙洪涛⁴

1.兰州理工大学电气工程与信息工程学院, 甘肃兰州 730050;
2.兰州理工大学甘肃省工业过程先进控制重点实验室, 甘肃兰州 730050;
3.兰州理工大学电气与控制工程国家级实验教学示范中心, 甘肃兰州 730050;
4.曲阜师范大学工学院, 山东曲阜 273165

收稿日期:2020-11-27 出版日期:2022-06-28 发布日期:2022-10-09
通讯作者: 王志文(1976-),男,甘肃武威人,博士,教授,博导.Email:wzw@lut.edu.cn
基金资助:
国家自然科学基金(61863026, 61563031),甘肃省高等学校产业支撑引导项目(2019C-05),甘肃省工业过程先进控制重点实验室开放基金项目(2019KFJJ03),山东省高等学校科技计划项目(J17KA084)

Output feedback H_∞ control of cyber-physical systems triggered by two terminal dynamic events

WANG Zhi-wen^1,2,3, CHEN Wan-jie¹, SUN Hong-tao⁴

1. College of Electrical and Information Engineering, Lanzhou Univ. of Tech., Lanzhou 730050, China;
2. Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou Univ. of Tech., Lanzhou 730050, China;
3. National Demonstration Center for Experimental Electrical and Control Engineering Education, Lanzhou Univ. of Tech., Lanzhou 730050, China;
4. College of Engineering, Qufu Normal University, Qufu 273165, China

Received:2020-11-27 Online:2022-06-28 Published:2022-10-09

摘要/Abstract

摘要： 研究了具有双端动态事件触发策略的信息物理系统动态输出反馈H_∞控制问题.首先,将闭环系统建模为具有两个区间时变延迟的线性系统,分别在传感器-控制器和控制器-执行器信道的事件触发策略中引入内部动态变量,建立异步动态事件触发策略的通信机制,通过扩大事件间隔来减少信道中的数据传输量.其次,为了保证闭环系统的稳定性,利用Lyapunov-Krasovskii泛函的方法,推导得出满足系统H_∞性能的渐近稳定性判据;基于这一稳定判据,实现了动态输出反馈控制器和动态事件触发策略的协同设计.此外,证明了事件触发策略下最小触发时间间隔正标量下界,从而排除了Zone现象.最后,用卫星系统的例子说明了所提策略的有效性.

关键词: 信息物理系统, 动态事件触发策略, 动态输出反馈控制, H_∞控制

Abstract: This paper is concerned with the dynamic output feedback control of cyber-physical systems with two terminal dynamic event triggering strategy H_∞control problem. Firstly, the closed-loop system is modeled as a linear system with two interval time-varying delays based on an input delay method and a delay partition method. The internal dynamic variables are introduced into the event triggering strategies of sensor controller and controller actuator channels, respectively, and the communication mechanism of asynchronous dynamic event triggering strategy is established to reduce the amount of data transmission by enlarging the inter-event intervals. Secondly, to ensure the stability of the closed-loop system, asymptotic stability criteria satisfying H_∞ performance is derived, by applying the Lyapunov-Krasovskii functional approach. Based on this stability criterion, the co-design of dynamic output feedback controller and dynamic event triggering strategy are realized. Furthermore, it is proved that minimum inter-event time of event generator are lower bounded by a positive scalar, which thus excludes Zeno phenomenon. Finally, an example of satellite system is given to illustrate the effectiveness of the proposed strategy.

Key words: cyber-physical systems, dynamic event triggering control, dynamic output feedback control, H_∞ control

中图分类号:

TP273

王志文, 陈万杰, 孙洪涛. 双端动态事件触发下信息物理系统输出反馈H_∞控制[J]. 兰州理工大学学报, 2022, 48(3): 77-85.

WANG Zhi-wen, CHEN Wan-jie, SUN Hong-tao. Output feedback H_∞ control of cyber-physical systems triggered by two terminal dynamic events[J]. Journal of Lanzhou University of Technology, 2022, 48(3): 77-85.

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双端动态事件触发下信息物理系统输出反馈H_∞控制

Output feedback H_∞ control of cyber-physical systems triggered by two terminal dynamic events

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双端动态事件触发下信息物理系统输出反馈H∞控制

Output feedback H∞ control of cyber-physical systems triggered by two terminal dynamic events

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双端动态事件触发下信息物理系统输出反馈H_∞控制

Output feedback H_∞ control of cyber-physical systems triggered by two terminal dynamic events