| 带有稀疏执行器故障的事件触发网络化系统容错控制 |
投稿时间：2019-06-04 修订日期：2019-07-16  点此下载全文 |
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| 基金项目:国家自然科学基金（青年基金项目） |
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| 中文摘要:文章针对一类具有事件触发信息传输机制的网络化控制系统，对系统故障执行器个数进行稀疏约束，研究系统在有限个执行器失效情况下的指数稳定及控制器设计问题。其创新之处在于将系统故障执行器个数的约束转化为对控制器增益矩阵行的势约束，利用混合整数方法来解决这类稀疏约束的容错控制问题。在此基础上，利用Lyapunov泛函方法，得出闭环系统在有限个执行器失效情况下系统呈指数稳定的充分条件以及具有行稀疏约束的控制器设计方法。最后，通过一个飞行控制系统的数值仿真实例验证所提控制方法的可行性和有效性。 |
| 中文关键词:网络化控制系统 事件触发传输机制 执行器故障 稀疏约束 容错控制 |
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| Fault-tolerant Control of Event-triggered Networked System with Sparse Actuator Fault |
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| Abstract:In this paper, for a class of networked control systems with event-triggered information transmission mechanism, the number of fault actuators is sparsely constrained, and the exponential stability and controller design of the system with a limited number of actuator failures are studied. The contribution is to convert the number of fault actuators to a cardinality constraint on the controller gain matrix. The mixed integer programming is used to solve this kind of sparse constraint problem. By using the Lyapunov functional method, we obtained a sufficient condition for the closed loop system to be exponentially stable with a limited number of actuator failures and a controller design method with row sparse constraints is also presented. Finally, the effectiveness of the proposed method is verified by a numerical simulation example about a flight control system. |
| keywords:networked control systems event-triggered transmission mechanism actuator failure sparse constraint fault-tolerant control |
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