控制理论与应用2012，Vol.29Issue(7)：949-954,6.
网络系统中动态矩阵控制的稳定性条件
Stability condition for dynamic matrix control in networked system
摘要
Abstract
The time-delay and the packet-dropout in networked control systems (NCSs) affect the stability of the control system. Hence, the traditional dynamic matrix control (DMC) controller is no longer suitable in the networked environment. To deal with this problem, we designed an improved dynamic matrix controller (DMC), in which the uncertain time-delay is transformed to the fixed time-delay by two buffers. An updating method for the step-response coefficient is put forward to handle the effect of time-delay on controller. The entire control sequence is transmitted in one time to eliminate the required updating for control data when packet-dropout is occurred. Furthermore, the stability problem of the improved DMC system is investigated and a sufficient condition considering the information of time-delay and packet-dropout is established. By using a real-time simulation software, we illustrate how to determine the maximum tolerable time-delay and packet-dropout for a given example. Results validate the proposed algorithm.关键词
网络控制系统/动态矩阵控制/时滞/丢包Key words
networked control systems/ dynamic matrix control/ time-delay/ packet-dropout分类
信息技术与安全科学引用本文复制引用
葛阳,王景成..网络系统中动态矩阵控制的稳定性条件[J].控制理论与应用,2012,29(7):949-954,6.基金项目
国家自然科学基金资助项目(60934007,61174059) （60934007,61174059）
教育部新世纪人才计划资助项目(NCET-08-0359) （NCET-08-0359）
上海市青年科技启明星跟踪计划资助项目(11QH1401300). （11QH1401300）
