应用等效电压源法计算６ｋＶ厂用母线短路电流

华电技术 ›› 2015, Vol. 37 ›› Issue (11): 25-27.

应用等效电压源法计算６ｋＶ厂用母线短路电流

湖北华电襄阳发电有限公司，湖北襄阳４４１０４１

出版日期:2015-11-25 发布日期:2016-01-26

The short circuit current calculation of 6 kV auxiliary bus using equivalent voltage source method

Hubei Huadian Xiangyang Power Generation Company Limited,Xiangyang 441141,China

Online:2015-11-25 Published:2016-01-26

摘要/Abstract

摘要：

摘要：结合某６００ＭＷ机组高压厂用变压器出厂试验数据，以及６ｋＶ母线所接异步电动机参数，分别应用等效电压源法和传统方法，计算６ｋＶ母线三相短路电流初始值，并对两种计算结果进行比较，计算中假定高压厂用变压器高压侧馈电网络阻抗为零。应用等效电压源法计算由厂用电源支路提供的短路电流，其平均值与采用传统方法的计算结果非常接近。

关键词: 关键词：６００ＭＷ机组, 等效电压源法, 厂用母线, 短路电流计算

Abstract:

Abstract:Combining the factory experimental data of high voltage auxiliary transformer of a 600 MW unit and asynchronous motor parameters that 6 kV auxiliary bus connected,this paper calculated and compared the initial values of three phase short circuit current of the 6kV auxiliary bus using equivalent voltage source method and traditional method,respectively.In the calculations above,the feed network impedance on the high voltage side of high voltage auxiliary transformer is supposed to be 0.The calculations show that the average calculated values of short circuit current that provided by auxiliary power supply branch are very close to each other between equivalent voltage source method and traditional method.

Key words: ">Keywords:">600 ">MW unit, equivalent voltage source me thod, auxiliarybus, short circuit current calculation

王旅，许双斌. 应用等效电压源法计算６ｋＶ厂用母线短路电流[J]. 华电技术, 2015, 37(11): 25-27.

WANG Lü,XU Shuangbin. The short circuit current calculation of 6 kV auxiliary bus using equivalent voltage source method[J]. Huadian Technology, 2015, 37(11): 25-27.