CAJ | 학술논문

在电力系统中,35 kV及以下电压等级的母线由于没有稳定问题,一般未装设专用母线保护.但由于高压变电站的35 kV及以下电压等级系统出线多、操作频繁、容易受小动物危害、设备绝缘老化和机械磨损等原因,仍然有母线发生故障的情况.基于IEC61850通信规范基础的数字化变电站,可以实现二次设备之间互操作及信息共享,并实现一次设备智能化、二次设备网络化.提出的基于GOOSE方式的网络化母线保护,能够直接应用到数字化变电站中,具有较大的实用价值.
재전력계통중,35 kV급이하전압등급적모선유우몰유은정문제,일반미장설전용모선보호.단유우고압변전참적35 kV급이하전압등급계통출선다、조작빈번、용역수소동물위해、설비절연노화화궤계마손등원인,잉연유모선발생고장적정황.기우IEC61850통신규범기출적수자화변전참,가이실현이차설비지간호조작급신식공향,병실현일차설비지능화、이차설비망락화.제출적기우GOOSE방식적망락화모선보호,능구직접응용도수자화변전참중,구유교대적실용개치.
In the power system, it does not install special protection generally on voltage of 35 kV and below levels bus. However, it's still found that the voltage of 35 kV and below levels bus of high-voltage substation have some problems. For instance, animal problems, more frequent operation, equipment insulation aging and mechanical wear abrasion and so on. But the digital substations based on IEC 61850 communication protocol don't have those problems, the intelligent primary device and the network of secondary device are implemented in the digital substation based on IEC61850 communications. Bus protection based on the GOOSE type network can be applied to digital substation directly, thus it has great practical value.