【作者】 慕德俊； 傅磊； 戴冠中；

【Author】 Dejun. Mu, Lei. Fu, Guanzhong. Dai College of Automation, Northwestern Polytechnical University, Xi’an 710072

【机构】 西北工业大学自动化学院；

【摘要】 针对具有随机网络诱导延迟的网络化控制系统中,由于延迟所引起的控制系统性能恶化甚至不稳定的问题,在分析了网络化控制系统结构特性的基础上,提出了一种基于广义预测控制的网络化控制系统的控制算法。该算法结合了数据网络时间戳机制,能够准确地测量系统输出并及时对预测值进行在线修正,实现了具有随机网络诱导延迟的网络化控制系统的预测控制策略。仿真研究表明了该算法的有效性。更多还原

【Abstract】 The random network-induced delay of networked control system can lead to the degradation of control performance and even the instability of control system. A novel control strategy based on generalized predictive control is proposed for controlling of networked control system according to the analysis of the structure characteristics of networked control system. The time stamp mechanism of data communication network is applied to the proposed algorithm. Accurate measurement to the system output and timely modification to the predictive value are both ensured in the networked control system along with the random networked-induced delay. finally, the validity of our algorithm is confirmed by the simulation.更多还原