摘要
针对网络控制系统中同时存在时延和丢包的问题建立增广模型,设计了RBF预测控制器。在当前状态量不能被控制器实时得到时,将网络控制系统建模为切换模型,通过预测控制器利用已知的数据预测出当前的状态与控制量,对时延和丢包现象进行实时补偿,保证了系统的稳定性。最后以Truetime工具箱为仿真平台建立仿真模型,通过数值仿真算例验证了该方法的可行性和有效性。
Based on the phenomenon of network delay and data packet dropout in the network control system （NCS） , one augmented model and a RBF predictor were presented in this paper. When the current state measurement eouldnt be obtained by the controller instantly, the network control system were modelled to switched modeles. The controller made use of the former information to control the system, which could compensate for the phenomenon of network delay and packet dropout to keep the stability of the system. At last the emulation model was established on the platform of Truetime. The simulation results show this method is feasible and effective.
出处
《电力科学与工程》
2010年第5期55-59,共5页
Electric Power Science and Engineering
关键词
网络控制系统
时延
丢包
RBF预估器
network control system
time-delay
data packet losses
RBF predictor
