具有时变全状态约束的多输入多输出非线性切换系统指定性能事件触发控制
Prescribed Performance Event-Triggered Control for Multi-input and Multi-output Nonlinear Switched Systems with Time-varying Full-state Constraints
李树 1任涛 1孙笑生1
作者信息
- 1. 辽宁工业大学 电气工程学院,辽宁 锦州 121001
- 折叠
摘要
针对多输入多输出切换非线性系统面临的不可测状态、状态约束、通信资源受限等挑战,本文研究了一种具有指定性能的事件触发控制策略.借助状态观测器和模糊逻辑系统,完成对不确定系统的建模.将命令滤波引入至反步递推(Backstepping)设计过程,以避免因虚拟控制器反复求导引起的计算爆炸问题,并通过设计指定性能函数,保证系统的瞬态性能.通过构造事件触发控制器和障碍李雅普诺夫函数,有效解决时变状态约束及通讯资源受限的问题,并保证系统的稳定性.最后通过仿真验证控制算法的有效性.
Abstract
In view of the challenges of unmeasurable states,state constraints and limited communication resources faced by multi-input and multi-output nonlinear switching systems,this paper studies an event-triggered control strategy with specified performance.With the help of state observer and fuzzy logic system,the modeling of uncertain system is completed.The command filter is introduced into the Backstepping design process to avoid the computational explosion problem caused by the repeated derivation of the virtual controller,and the transient performance of the system is guaranteed by designing the specified performance function.By constructing event-triggered controller and barrier Lyapunov function,the problems of time-varying state constraints and limited communication resources are effectively solved,and the stability of the system is guaranteed.Finally,the effectiveness of the control algorithm is verified by simulation.
关键词
模糊逻辑系统/非线性切换系统/时变全状态约束/事件触发控制Key words
fuzzy logic system/nonlinear switching system/time-varying full-state constraints/event triggered control引用本文复制引用
基金项目
国家自然科学基金青年科学基金项目(62203198)
出版年
2024
NETL
NSTL
万方数据