电力系统保护与控制2012，Vol.40Issue(14)：92-96,5.
锦屏—苏南特高压直流输电入地电流在四川电网内分布的预测分析
Forecast and analysis of Jinping-Sunan UHVDC earth-return current distribution in Sichuan power grid
摘要
Abstract
By theoretical analysis, the calculation model of DC current distribution of AC power grid is built to explore the mechanism of DC current distribution in AC power grid. The forecast and analysis of Jinping-Sunan +800 kV UHVDC 4950A earth-return current distribution rule in Sichuan power grid as well as substations' taking risks of DC magnetic biasing is carried out in line with the 2014 program. Computation results show that the area of infection is mainly within the radius of 120 km around DC grounding electrode. In the end, the effect of Jinping-Sunan ±800 kV UHVDC on the UHV substation to be built as well as its mitigation measurement is particularly discussed. Evaluation results show that these problems will not be serious.关键词
特高压直流输电/特高压变电站/直流分布/变压器/直流偏磁/建模Key words
UHVDC transmission/ ultra-voltage substations/ DC distribution/ transformer/ DC bias/ modeling分类
信息技术与安全科学引用本文复制引用
陈丹..锦屏—苏南特高压直流输电入地电流在四川电网内分布的预测分析[J].电力系统保护与控制,2012,40(14):92-96,5.
