摘要
500kV云田变是向长沙南部以及株洲北部电网供电的枢纽变电站。2018年,云田的500kV变压器扩建及220kV整站改造工程开工。云田改造过渡阶段,周边220kV网架结构变化较大,影响了负荷中心的供电能力和稳定水平。通过对云田2019年度夏期间施工过渡方案进行优化调整,可以有效地限制220kV短路电流,同时保障电网安全稳定运行和负荷供应。
Yuntian substation is a key substation supplying power to southern part of Changsha and northern part of Zhuzhou.The reconstruction and extension project in Yuntian substation has been started since 2018.During the construction,the power grid structure changed a lot.Due to the incomplete power grid structure,the power supply capacity and stability level has been reduced.By optimizing the construction scheme,220kV short-circuit current can be limited,power supply capacity and stability of power grid can be ensured in the same time.
作者
杨丹
邹鑫
刘静
钟伟
宋军英
YANG Dan;ZOU Xin;LIU Jing;ZHONG Wei;SONG Junying(State Grid Hunan Electrical Power Company Limited,Changsha,410004,China)
出处
《湖南电力》
2019年第4期54-56,60,共4页
Hunan Electric Power
基金
国网湖南省电力有限公司科技项目(5216A5180018)
关键词
云田变电站
短路电流
电磁环网
供电能力
稳定性
Yuntian substation
short-circuit current
electromagnetic looped network
power supply capacity
stability
