Ma Lei, Yang Chunyu, Wang Guoqing, Dai Wei, Cai Chenxiao
IEEE Trans Cybern. 2023 Aug;53(8):5013-5023. doi: 10.1109/TCYB.2022.3159370. Epub 2023 Jul 18.
In this article, the H control problem is investigated for a class of two-time-scale cyber-physical systems (TTSCPSs). In order to reduce the network bandwidth occupation and lighten the computation burden, an asynchronous dynamic event-triggered protocol (ADETP) is designed to arrange the signal transmissions from sensors to the composite controllers, in which the triggering sequences of fast and slow system components are determined separately. A novel composite controller based on the proposed ADETP is designed dependent on the singular perturbation parameter (SPP) such that the closed-loop TTSCPS is asymptotically stable with meeting a required H performance index when the SPP is no more than a given upper bound. Gain matrices of the desired composite controller are parameterized in terms of the solutions to certain matrix inequalities that are readily solvable. Finally, simulation results of a nuclear reactor are presented to verify the effectiveness of the proposed approach.
本文研究了一类双时间尺度信息物理系统（TTSCPSs）的H控制问题。为了减少网络带宽占用并减轻计算负担，设计了一种异步动态事件触发协议（ADETP）来安排从传感器到复合控制器的信号传输，其中快速和慢速系统组件的触发序列是分别确定的。基于所提出的ADETP设计了一种新颖的复合控制器，该控制器依赖于奇异摄动参数（SPP），使得当SPP不超过给定上限时，闭环TTSCPS在满足所需H性能指标的情况下渐近稳定。所需复合控制器的增益矩阵根据易于求解的某些矩阵不等式的解进行参数化。最后，给出了一个核反应堆的仿真结果，以验证所提方法的有效性。
