基于分层递进架构的实用型变压器保护故障定位方法  

A practical transformer protection fault location method based on hierarchical progressive architecture

作　　者：张晓宇[1] 程骁[1] 顾乔根[1] 莫品豪[1] 郑超[1] ZHANG Xiaoyu;CHENG Xiao;GU Qiaogen;MO Pinhao;ZHENG Chao(NR Electric Co.,Ltd,Nanjing 211102)

机构地区：[1]南京南瑞继保电气有限公司,南京211102

出　　处：《电气技术》2025年第1期33-39,共7页Electrical Engineering

基　　金：国家电网有限公司科技项目“基于多源数据精准融合的电网故障继电保护智能分析技术研究”(J2023145)。

摘　　要：与母线、线路、断路器等其他一次设备相比,变压器的结构更复杂,而且跨不同电压等级,加之变压器本身星角变换的影响,使其区内外故障特征复杂多变,故障点定位困难,依赖技术人员经验,缺少完整的自动化故障定位分析体系。鉴于此,本文首先对可能引起变压器保护启动或动作的情况进行分层分类,然后逐一设置故障定位判据,从而大大提升了变压器故障定位的自动化程度,具有较好的工程实施价值。最后,通过多组仿真波形证明了本文所提方法的可行性和准确性。Compared to other primary equipments such as busbars,lines,and circuit breakers,transformers have a more complex structure and are the only equipment in the power system that connect different voltage levels.In addition,the influence of the Y/D transform makes the fault characteristics complex and variable,making it difficult to locate the fault point.The fault localization depends on the experience of the engineer.There is an urgent need for a complete automated fault location system.This article first classifies the possible situations that may cause transformer protection starting or tripping,and then sets fault localization criterion step by step.The criterion greatly enhances the automation level of transformer fault localization and has good engineering implementation value.The feasibility and accuracy of this method are proved through multiple sets of simulation waveforms.

关 键 词：变压器保护 故障定位 分层递进架构 

分 类 号：TM4[电气工程—电器]