摘要
简要介绍移相变压器控制潮流和产生相移的基本原理,对华东电网500 kV输电线路安装移相变压器改变500 kV线路潮流分配、提高网络断面输送能力进行了实例研究。就移相器对华东电网500 kV母线短路电流的影响进行了探讨。研究表明,采用移相器技术能显著提高上海电网受电能力和江苏电网过江通道输送能力,同时对降低华东电网500 kV母线短路电流也能起到一定的作用。
The working principle of the phase-shifting transformer （PST） is presented briefly, and installation of PST in 500 kV transmission lines of East China Power Grid to change power flow distribution and improve the transmission capacity of the grid section is studied. Influences of PST on the short-circuit current of 500 kV buses of the Grid are discussed. Study shows that the PST can greatly improve the power receiving capability of Shanghai Power Grid and the transmission capacity of the cross-river passage of Jiangsu Power Grid, and will play a positive role in reducing the short-circuit current of 500 kV buses of East China Power Grid.
出处
《华东电力》
北大核心
2006年第11期30-33,共4页
East China Electric Power
关键词
移相变压器
潮流控制
短路电流
提高输送能力
phase-shifting transformer （PST）
power flow control
short-circuit current
improving transmission capacity
