【作者】 严怀成； 侍洪波； 张皓； 赵海涛；

【Author】 Huaicheng Yan;Hongbo Shi;Hao Zhang;Haitao Zhao;Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education;School of Information Science and Engineering, East China University of Science and Technology;School of Electronics and Information Engineering, Tongji University;

【机构】 华东理工大学,化工过程先进控制和优化技术教育部重点实验室； 华东理工大学,信息科学与工程学院； 同济大学,控制科学与工程系；

【摘要】 本文研究一类具有信号量化、扇区有界非线性、Ito随机扰动以及随机时延的网络控制系统的基于观测器的H_∞控制器设计问题.对于同时具有测量输出和控制输入通信时延的非线性随机网络控制系统(NCSs),采用对数量化器对控制输入和测量输出信号分别进行量化.利用Lyapunov稳定性理论和线性矩阵不等式方法,给出了使得系统均方意义下指数稳定并满足H_∞性能指标的充分条件.采用锥补线性化算法(CCL)给出了控制器设计方法.最后通过数字仿真实例证明了本文方法的有效性.更多还原

【Abstract】 In this paper, we are concerned with the quantized H∞ control problem for a class of stochastic systems with random communication delays. The system under consideration involves signals quantization, Itö stochastic disturbance as well as random communication delays. The measured output and the control input quantization are considered simultaneously. We aim at designing an observer-based controller such that the dynamics of the filtering error is guaranteed to be exponentially stable in the mean square, and a prescribed H∞ disturbance attenuation level is also achieved. Finally,a numerical example is given to illustrate the effectiveness of the proposed method.更多还原