DG接入对微电网电流保护的影响

DG接入对微电网电流保护的影响
摘要：分布式电源（DG）接入微电网后，微电网由单源变为多源系统，会改变原有网络的潮流分布以及故障短路电流流向，造成原有保护的灵敏度下降，出现误动拒动等现象。分析DG接入位置与接入容量的不同对微电网保护的影响，并在PSCAD软件上搭建微电网模型，接入DG，验证DG接入位置不同以及接入容量不同对微电网电流保护的影响。

Abstract:When distributed generator (DG) is connected to the microgrid, the microgrid will change from single source system to multiple source system, which will change the power flow distribution and fault short-circuit current flow of the original network, the sensitivity will decrease, and the phenomenon of false rejection will occur. In this paper, the influence of DG on the protection of microgird is analyzed, and the model is built on the PSCAD. The effect of DG on the protection of microgird is verified.

标题：DG接入对微电网电流保护的影响
title:The Impact of DG Access on Microgrid Current Protection

作者：丁婧,王欣,郑淑文,陈宇,孙仕奇
authors:Jing DING,Xin WANG,Shuwen ZHENG,Yu CHEN,Shiqi SUN

关键词：分布式电源,微电网,电流保护,
keywords:distributed generator,microgird,current protection,

发表日期：2019-02-28

2025-1-21 00:15 上传 DG接入对微电网电流保护的影响.pdf

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