【摘要】 大量分布式发电的并网运行将深刻影响现有配电网络的结构、以及配电网中短路电流的大小、流向及分布,由此给配电网的运行与控制带来多方面的影响。针对基于断路器的三段式电流保护、基于重合器等自动化电器的馈线保护以及基于FTU的配网自动化保护方案,探讨了分布式发电对配电网继电保护以及自动化的影响。更多还原

【Abstract】 The increasing proportion of distributed generation(DG) in power system will deeply affect the distribution network structure,the amperage,direction,and distribution of short-circuit current in the existing distribution network,and will thus affect the operation and control of the distribution network.The effect of DG on the relay protection and automation of the distribution network is discussed in the aspects of 3-sectional current protection based on circuit breakers,feeder protection based on reclosures,and distribution network automation protection based on FTU.更多还原