通道型电磁环网解环量化评估方法分析

发布时间：2018-01-08 16:23

本文关键词：通道型电磁环网解环量化评估方法分析　出处：《电力系统自动化》2017年20期 　论文类型：期刊论文

【摘要】：在大型的通道型电磁环网中线路传输的功率一般较大,高电压等级线路跳闸将引起大规模潮流向低电压等级线路转移,系统存在引发连锁故障的风险。文中分析总结出通道型电磁环网的主要特点,从网架结构、送受端系统规模等因素出发,构建了以静态稳定裕度、热稳裕度、潮流转移比、安控措施量为核心的通道型电磁环网解环判据指标体系。在此基础上,采用变异系数法计算各指标权重,得出一种判断电磁环网是否解环的综合指标。通过对青海电网通道型电磁环网解环必要性的分析,验证了所提通道型电磁环网解环判据的合理性和有效性。
[Abstract]:In large channel type electromagnetic loop network, the transmission power of line is usually large, and high voltage level line tripping will cause large-scale power flow transfer to low voltage level line. This paper analyzes and summarizes the main characteristics of the passageway electromagnetic loop network, starting from the network structure, the size of the receiving terminal system, the static stability margin and thermal stability margin are constructed. Based on the criterion system of power flow transfer ratio and safety control measure, the weight of each index is calculated by coefficient of variation method. A comprehensive index to judge whether the electromagnetic ring network is unlooped or not is obtained. The rationality and validity of the proposed criterion are verified by analyzing the necessity of solving the loop of the channel electromagnetic loop network in Qinghai power network.
【作者单位】：南瑞集团公司(国网电力科学研究院)(北京);国网青海省电力公司经济技术研究院;
【分类号】：TM732
【正文快照】： 上网日期:2017-07-28。0引言通道型电磁环网是指省间联络线或省内重要送受电断面通过不同电压等级的线路连接而成的并联环路,其中高电压等级线路通常由两回及以上线路组成。输电通道型电磁环网传输的功率一般较大,高电压等级线路和低电压等级线路潮流分布不均,高电压等级线路

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