【作者】 王兴成； 李放文； 赵承心；

【Author】 WANG Xing-cheng~1,LI Fang-wen~1,ZHAO Cheng-xin~2 (1.School of Information Science and Technology,Dalian Maritime University,Dalian 116026,China; 2.School of Information and Communication Technology,Royal Institute of Technology,Stockholm 16440,Sweden)

【机构】 大连海事大学 信息科学技术学院； 瑞典皇家理工学院 信息与通信技术学院；

【摘要】 针对具有网络延迟、丢包和外部干扰等不确定因素的网络系统,研究量化反馈H_∞控制器设计。采用对数量化器对状态量和控制量同时进行量化,并应用Lyapunov稳定性原理和线性矩阵不等式方法,给出网络系统渐近稳定的充分条件和量化反馈控制器设计方法。所设计的量化反馈控制器使系统渐近稳定,并满足H_∞性能指标。数值仿真结果表明了算法的有效性。更多还原

【Abstract】 Network-induced delay,data packet drop-out and perturbation are common problems for networked system. The designing of quantized feedback H_∞ controller,focusing on the above problem was studied.In this general model, two logarithms were quantized used for the quantizing of control signal and status signal,and the sufficient condition for the asymptotical stability of the network control systems and the design of quantized feedback controller was proposed according to the Lyapunov stability theory and linear matrix inequality.The quantized feedback controller can make the systems asymptotically stable and meet H_∞ performance.The design is confirmed to be efficient by the simulation result.更多还原