时延网络化控制系统的量化输出反馈耗散控制  

Quantized output feedback dissipative control for networked control systems with time-delay

作　　者：黄可望[1] 刘艳 潘丰 Huang Kewang;Liu Yan;Pan Feng(School of Internet of Things Technology,Wuxi Institute of Technology,Wuxi Jiangsu 214121,China;Key Laboratory of Advanced Process Control for Light Industry for Ministry of Education,Jiangnan University,Wuxi Jiangsu 214122,China)

机构地区：[1]无锡职业技术学院物联网技术学院,江苏无锡214121 [2]江南大学轻工过程先进控制教育部重点实验室,江苏无锡214122

出　　处：《计算机应用研究》2018年第10期3053-3056,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(61273131)

摘　　要：以带有时变时延的离散网络化控制系统为研究对象,研究了闭环系统的量化输出反馈耗散控制问题。引入两个对数量化器分别对系统中的测量输出信号和控制输入信号进行量化,利用扇形界方法,将量化反馈控制设计问题通过扇形界的不确定性转换为鲁棒控制问题进行求解。通过借助自由权矩阵方法,得到了非脆弱耗散控制器存在的充分条件。所设计的控制器能够保证闭环系统渐近稳定且严格(Q,R,S)-耗散。最后通过理论证明及数值仿真验证了所提控制策略的有效性。This paper studied the issue of quantized output feedback dissipative control in discrete-time networked control system(NCS)with time-varying delays.It utilized two logarithmic quantizers to quantize the measured output signalsand controlled input signals respectively.Then by implementing the sector bound approach,uncertainties of the sector boundary could help convert the design problem of quantized feedback control into the robust control problem.Further,by using free-weight matrix techniques,it established sufficient conditions for the existence of the non-fragile dissipative controller.The presented controller could assure the asymptotical stability and strict(Q,R,S)-dissipativity of closed-loop systems.Finally,theoretical proof and numeric simulation illustrates the performance of the proposed control strategies.

关 键 词：时变时延 对数量化器 耗散控制 扇形界方法 自由权矩阵方法 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]