Compensation for Packet Dropout in Networked Control Systems Based on Grey Generalized Predictive Control
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摘要: 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.Abstract: 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 node and actuator node are driven by 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.
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