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不同耦合方式和耦合强度对电力-通信耦合网络的影响

DOI: 10.13336/j.1003-6520.hve.2015.10.038, PP. 3464-3469

Keywords: 电力-通信耦合网络,边失效,直流潮流,连锁故障,耦合方式,失效概率,耦合强度

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Abstract:

为寻找增强电力-通信耦合网络鲁棒性的方法,指导智能电网的建设,以直流潮流优化模型为基础,考虑通信网的调度功能,提出一种电力-通信网络概率失效模型。应用边攻击方式研究了耦合方式和耦合强度对电力-通信网络鲁棒性的影响,并对失效概率p0进行了分析。仿真结果表明,内在自相似耦合方式能很好地提高电力-通信耦合网络的鲁棒性,降低故障规模,以介数-度数(B-D)耦合方式最佳。同时,网络间失效概率p0对小规模具有无标度特性的电力-通信耦合网络的连锁故障不会产生影响。此外,对于不同耦合强度,平均负荷损失都随通信边失效比例的增加呈现出先上升后下降的趋势,且在通信边失效比例较小时,耦合强度的增加能有效降低连锁故障的规模。

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