光伏电源接入对变电站保护及自动装置的影响

Influence of Photovoltaic Power Supply on Substation Protection and automatic Device

文章以四川凉山配网系统光伏电源接入为例进行研究,分析光伏电源接入方式,从备用电源自投装置与自动重合闸以及变压器零序保护方面,分析光伏接入对自动装置与继电保护的影响,介绍光伏接入对自动装置与继电保护的影响,包括10 kV保护配置、主变保护配置、光伏电源保护配置,对光伏电源接入对变电站保护及自动装置方式的设置提供了一定的参考意义。

This paper takes the photovoltaic power supply access of Liangshan distribution network system in Sichuan Province as an example,analyzes the access mode of photovoltaic power supply,analyzes the influence of photovoltaic access on automatic device and relay protection from the aspects of automatic switching device and automatic reclosing of standby power supply and zero sequence protection of transformer,and introduces the influence of photovoltaic access on automatic device and relay protection,including 10 kV protection confi guration In terms of protection confi guration of main transformer and photovoltaic power supply,it provides a certain reference for the setting of protection and automatic device mode of substation when photovoltaic power supply is connected.