摘要
分布式电源(DG)并入配电网后,传统的接线结构由单电源供电网络变为了多电源供电网络,改变了系统的潮流分布,保护装置可能发生误动和拒动。为此,提出了一种新型的自适应电流保护方法。该方法增加了保护系数α,使得保护范围不会因DG接入及线路长度发生变化,解决了DG接入配电网带来的问题。
The power flow in distribution network can be changed by the connection of DG, the current is no long a single direction, the protection device malfunction occurred and refused to move. Therefore, the method of a new improved adaptive current protection must be proposed. The method including the α makes the protection range not change due to the variation of the connection of DG and line length. This protection solves those problems of detrimental effects on the distribution system of DG.
出处
《煤炭技术》
北大核心
2017年第11期242-244,共3页
Coal Technology
关键词
配电网继电保护
自适应电流保护
distributed generation
relay protection of distributed generation
adaptive current protection
