摘要
根据长三角地区的实际,建立了电网拓扑和土壤分层模型,以±800 kV复奉特高压直流系统单极大地运行为例,评估了长三角地区各500 kV交流变电站主变的直流偏磁影响后。全面考虑长三角地区多直流落点的综合影响,提出了抑制直流偏磁影响的方法,工程应用证实,效果明显。
According to the actual situation of Yangtze River delta area,a grid network and multi-layer soil model is presented in this paper.Evaluation of DC bias impact on 500 kV transformers in Yangtze River delta area is made by the example of monopole operation of ± 800 kV Fulong-Fengxian UVDC systems.Consideration of the compositive impact that multiple DC transmission lines rooted in Yangtze River delta area will make,a method of restraining DC bias impact is put forward and engineering applications have shown its effectiveness.
出处
《华东电力》
北大核心
2011年第9期1467-1470,共4页
East China Electric Power
关键词
单极运行
变压器
直流偏磁
抑制
monopole operation
transformer DC bias
restrain
