基于模型的变门限状态反馈事件触发控制  

Model-based event-triggered state feedback control with variable threshold

作　　者：李国梁 张合新[1] 周鑫 惠俊军 

机构地区：[1]第二炮兵工程大学控制科学与工程系,西安710025 [2]宝鸡市150信箱11分箱,陕西宝鸡721013

出　　处：《控制与决策》2016年第4期723-728,共6页Control and Decision

摘　　要：针对基于模型的事件触发状态反馈控制系统,提出一种触发门限可变的触发机制.该触发机制能够在被控对象面临变化较大且快的干扰时,自动调整触发门限变大,避免频繁的事件触发导致网络通信资源浪费;能够在被控对象面临变化较小的干扰时,通过定时触发,避免长时间没有事件发生导致的通信网闲置,同时自动调整触发门限变小,提升控制性能.仿真结果表明,较固定门限触发机制,所提出的触发机制能利用更少的通信资源实现整体控制性能的提升.An event-triggering mechanism with variable threshold for model-based event-triggered state-feedback control system is propoesd. When strong and fast varying disturbances act on the plant, this event-triggering mechanism can enlarge the threshold automatically to mitigate the unnecessary waste of communication resources. When slowly varying disturbances act on the plant, this event-triggering mechanism can avoid the communication network lies idle by using a timetriggering mechanism. Meanwhile, this event-triggering mechanism can also decrease the threshold automatically to improve the control performance. Simulation results show that, compared with the fixed threshold event-triggering mechanism, the proposed variable threshold event-triggering mechanism consumes less communication resources, but makes better whole performance.

关 键 词：基于模型 状态反馈 事件触发控制 变门限 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]