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电网技术  2018, Vol. 42 Issue (8): 2620-2629    DOI: 10.13335/j.1000-3673.pst.2017.1796
  电力系统 本期目录 | 过刊浏览 | 高级检索 |
基于SDN的动态优化路由策略在信息物理融合电力系统连锁故障中的研究与应用
韩宇奇1, 何宜倩1, 楼凤丹2, 王彦波2, 郭创新1
1.浙江大学 电气工程学院,浙江省 杭州市 310027;
2.国网浙江省电力有限公司,浙江省 杭州市 310007
Analysis and Application of SDN Based Dynamic Optimal Route Strategy for Cyber Layer in Cascading Failures of Cyber-Physical Power System
HAN Yuqi1, HE Yiqian1, LOU Fengdan2, WANG Yanbo2, GUO Chuangxin1
1. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, Zhejiang Province, China;
2. State Grid Zhejiang Electric Power Company, Hangzhou 310007, Zhejiang Province, China
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摘要 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。
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韩宇奇
何宜倩
楼凤丹
王彦波
郭创新
关键词:  信息物理融合电力系统  连锁故障  软件定义网络  信息传输延时  动态优化路由    
Abstract: Delay in cyber layer plays a critical role in cascading failure propagation in cyber-physical power system (CPPS). To mitigate cascading failure risk in CPPS, it is imperative to focus on the strategy to decrease the delay and analyze its effects. This paper firstly describes cyber layer structure of CPPS in soft defined network (SDN) perspective, and proposes a dynamic optimal route strategy for the cyber layer based on SDN to decrease the delay and congestion. Then, data transmission delay and cyber node data congestion situations under various cases are compared. The cases include small-world cyber layer topology and scale-free cyber layer topology, also the static data route strategy and SDN based dynamic data route strategy. At last, going back to the cascading failures in CPPS, the cascading failures for various initial failures and data route strategies are simulated and compared. For both small-world and scale-free cyber layer topologies, the dynamic data route strategy based on SDN mitigates data congestion for nodes and decreases both the longest delay and mean delay for data transmission. Simulation of cascading failures demonstrates that the dynamic data route strategy improves security control accuracy and mitigates cascading failure vulnerability in CPPS.
Key words:  cyber-physical power system    cascading failures    software-defined networks    data transmission delay    dynamic optimal route strategy
收稿日期:  2017-07-21                     发布日期:  2018-08-08      期的出版日期:  2018-08-05
ZTFLH:  TM76  
基金资助: 国家自然科学基金项目(51537010); 国家电网公司科技项(52110416001W)
作者简介:  韩宇奇(1988),男,博士研究生,通信作者,研究方向为电网信息物理融合系统、电力网络可靠性,E-mail:hanyuqi@zju.edu.cn;何宜倩(1993),女,硕士研究生,研究方向为电网信息物理系统、智能信息处理技术及其在电力系统中的应用,E-mail:heyiqianhaha@163.com;楼凤丹(1963),女,硕士,高级工程师,从事电力系统检修、运行技术管理工,E-mail:loufengdan @163. com;王彦波(1979),男,博士,高级工程师,从事宽带无线通信同步、信道估计、接收机设计的研究,E-mail:happyper@163.com;郭创新(1969),男,教授,博士生导师,研究方向为电网信息物理系统、智能信息处理技术、风险调度,E-mail:guochuangxin@zju.edu.cn。
引用本文:    
韩宇奇, 何宜倩, 楼凤丹, 王彦波, 郭创新. 基于SDN的动态优化路由策略在信息物理融合电力系统连锁故障中的研究与应用[J]. 电网技术, 2018, 42(8): 2620-2629.
HAN Yuqi, HE Yiqian, LOU Fengdan, WANG Yanbo, GUO Chuangxin. Analysis and Application of SDN Based Dynamic Optimal Route Strategy for Cyber Layer in Cascading Failures of Cyber-Physical Power System. POWER SYSTEM TECHNOLOGY, 2018, 42(8): 2620-2629.
链接本文:  
http://www.dwjs.com.cn/CN/10.13335/j.1000-3673.pst.2017.1796  或          http://www.dwjs.com.cn/CN/Y2018/V42/I8/2620
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