电力建设Issue(8)：79-83,5.DOI:10.3969/j.issn.1000-7229.2015.08.013
特高压接入对天津500 kV电网短路电流影响及限制措施
Influence of UHV Grid on Short￣Circuit Current of Tianjin 500 kV Grid and Its Restrictive Measures
罗涛 1刘丽霞 1王魁 1李媛媛1
作者信息
- 1. 国网天津市电力公司经济技术研究院，天津市300010
- 折叠
摘要
Abstract
With using the PSD￣BPA software developed by China Electric Power Research Institute, this paper studied the influence of UHV grid on Tianjin 500 kV Grid in detail. The operation of UHV substation in Tianjin South has little influence on the current, voltage and transient stability level of Tianjin 500 kV Grid, but has large influence on the short￣circuit current, which enhances the short￣circuit level of Tianjin 500 kV substation, so as to the short￣circuit current of Tianjin South and Jinghai substation exceeding the standard. According to the over￣limitation problem of short￣circuit current, this paper proposed three measures to limit the short￣circuit current, analyzed three restrictive measures with using PSD￣BPA software and verified those limiting effect. Finally, this paper compared these three measures from two aspects of the limiting effect for short￣circuit current and the impact on the security and stability operation of power grid, and discussed the advantages and disadvantages of these three restrictive measures.关键词
特高压/天津500kV电网/短路电流/限制措施Key words
UHV/Tianjin 500 kV Grid/short circuit current/restrictive measures分类
信息技术与安全科学引用本文复制引用
罗涛,刘丽霞,王魁,李媛媛..特高压接入对天津500 kV电网短路电流影响及限制措施[J].电力建设,2015,(8):79-83,5.
