基于灰色广义预测控制的网络化控制系统丢包补偿

Compensation for Packet Dropout in Networked Control Systems Based on Grey Generalized Predictive Control

针对网络传输中存在的数据丢包问题,提出了将灰色广义预测控制引入到网络化控制系统的新思想.将网络化控制系统视为灰色系统,设计了一个控制器节点由事件—时间驱动、传感器节点和执行器节点由时间驱动的分布式模型.利用灰色广义预测控制在线计算量小的特点,结合队列机制,提出补偿策略.仿真结果表明补偿策略效果良好.

For the problem of packet dropout in network transmissions, a new framework for networked control systems based on grey generalized predictive control （GGPC） is proposed. The networked control system is regarded as a grey system. A distributed model is designed, of which the controller node is driven by event-clock, and the sensor n-de and actuator node are driven 5v clock. Based on GGPC＇s characteristics of small amount of on-line calculation and combined with queuing strategy, a compensation scheme is proposed. The simulation result shows that the effects of the compensation scheme are good.