摘要
试验对三相组式(单相)变压器空载、不同功率单相负载、三相四线制对称负载、三相三线制对称负载5种情况下遭受不同直流入侵时的一次绕组电流进行了测量。分析了变压器以上5种工作状态下,直流入侵导致的一次绕组电流畸变和谐波分布、各次谐波与直流的关系、以及不同运行方式下GIC谐波效应的影响。
In the test, the primary winding currents were measured when subjected to diffferent DC invasions in the five loading states, including three-phase group (single-phase) transformer no-load, single-phase load with different power, three-phase four-wire symmetric load, and three-phase three-wire symmetric load. Analysis has been conduc-ted on the primary winding current distortion caused by DC invasion in the aforementioned five loading states, particu- larly its correlation with harmonic distribution, various harmonics and DC, as well as the influence of geomagnetically induced current (GIC) harmonic effect under different operation modes.
出处
《华东电力》
北大核心
2014年第1期101-105,共5页
East China Electric Power
基金
国家高技术研究发展计划(2012AA121005)~~
关键词
变压器
GIC
动模试验
谐波分析
transformer
GIC
dynamic simulation
harmonic analysis