环网配电网络电压暂降分析的临界比距法Critical Percentage Method of Meshed Distribution Networks for Voltage Sag Analysis
李妍;段余平;邱军;熊信艮;尹项根;
摘要(Abstract):
基于临界距离法原理,提出馈线临界比距的概念,针对几种环网配电网络,讨论了馈线临界比距的计算方法,根据馈线临界比距的数值可分析各出线故障对公共连接点 (point of common coupling,PCC)电压暂降的影响程度以及快速确定导致PCC点严重电压暂降的输电线路。与临界距离法相比,临界比距法避免了临界距离超出线路长度的情况,在确定电压暂降暴露域时物理概念更加清晰。估算结果与实际测量结果的比较证明了该方法的有效性。
关键词(KeyWords): 电压暂降;环网配网;临界比距法;电能质量
基金项目(Foundation):
作者(Author): 李妍;段余平;邱军;熊信艮;尹项根;
Email:
DOI: 10.13335/j.1000-3673.pst.2006.11.012
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