信息物理融合电力系统连锁故障中,信息层延时对故障的发展起到推波助澜的作用。为了降低系统故障风险,有必要在故障环境下分析降低延时的方法及其影响。为了缓解信息层信息传输延时和拥塞,首先将软件定义网络（soft defined networks,SD...信息物理融合电力系统连锁故障中,信息层延时对故障的发展起到推波助澜的作用。为了降低系统故障风险,有必要在故障环境下分析降低延时的方法及其影响。为了缓解信息层信息传输延时和拥塞,首先将软件定义网络（soft defined networks,SDN）的构架引入信息物理融合电力系统信息层,提出基于SDN的信息层动态优化路由策略。进而对比了小世界信息层网络和无标度信息层网络下,采用静态路由策略和SDN动态优化路由策略时的传输延时和节点拥堵情况。最后,回到信息物理融合电力系统连锁故障模拟场景,对比讨论了两种路由策略对不同规模连锁故障发展的影响。在小世界信息层网络和无标度信息层网络中,采用SDN动态优化路由策略平衡了不同节点的排队压力,缓解了拥堵程度,降低了最长信息传输延时和平均信息传输延时。连锁故障模拟表明,信息层动态优化路由策略提高了故障中物理电网安全控制的准确性且降低了连锁故障风险。展开更多
with the development of science and technology, smart home systems require better, faster to meet the needs of human. In order to achieve this goal, the human-machine-items all need to interact each other with underst...with the development of science and technology, smart home systems require better, faster to meet the needs of human. In order to achieve this goal, the human-machine-items all need to interact each other with understand, efficient and speedy. Cps could unify combination with the human-machine-items; realize the interaction between the physical nformation and the cyber world. However, information interaction and the control task needs to be completed in a valid time. Therefore, the transform delay control strategy becomes more and more important. This paper analysis Markov delay control strategy for smart home systems, which might help the system decrease the transmission delay.展开更多
文摘信息物理融合电力系统连锁故障中,信息层延时对故障的发展起到推波助澜的作用。为了降低系统故障风险,有必要在故障环境下分析降低延时的方法及其影响。为了缓解信息层信息传输延时和拥塞,首先将软件定义网络（soft defined networks,SDN）的构架引入信息物理融合电力系统信息层,提出基于SDN的信息层动态优化路由策略。进而对比了小世界信息层网络和无标度信息层网络下,采用静态路由策略和SDN动态优化路由策略时的传输延时和节点拥堵情况。最后,回到信息物理融合电力系统连锁故障模拟场景,对比讨论了两种路由策略对不同规模连锁故障发展的影响。在小世界信息层网络和无标度信息层网络中,采用SDN动态优化路由策略平衡了不同节点的排队压力,缓解了拥堵程度,降低了最长信息传输延时和平均信息传输延时。连锁故障模拟表明,信息层动态优化路由策略提高了故障中物理电网安全控制的准确性且降低了连锁故障风险。
文摘with the development of science and technology, smart home systems require better, faster to meet the needs of human. In order to achieve this goal, the human-machine-items all need to interact each other with understand, efficient and speedy. Cps could unify combination with the human-machine-items; realize the interaction between the physical nformation and the cyber world. However, information interaction and the control task needs to be completed in a valid time. Therefore, the transform delay control strategy becomes more and more important. This paper analysis Markov delay control strategy for smart home systems, which might help the system decrease the transmission delay.
