分布式发电对电力系统继电保护的影响

传统配电网一般都是单一电源的辐射状网络，继电保护按照辐射型网络进行设计和整定。随着分布式发电（DG）的接入，辐射式的网络将变为一种遍布电源和用户互联的网络，使得配电网中的潮流分布发生根本变化。详细分析了分布式发电对原有配电网中的电流保护，距离保护以及对重合闸等传统继电保护所带来的影响；最后根据DG接入电网位置的不同以及容量不同提出了相应的解决方案。

Effects of distributed generation on power system relay protection

Traditional distribution network is generally a radial network with a single power source,and its relay protection is designed and set according to the radial network.With the connection of distributed generation(DG),radial distribution networks become linking networks where generation nodes and load nodes are mixed.The power flowing in the networks will be deeply changed by the fundamental changes of the distribution networks.Effects of distributed generation on the original distribution network in the cur...