电力变压器励磁涌流的仿真研究Simulation and Analysis for the Inrush of Power Transformer
刘小宝,俞波,宋艳,张艳云
LIU Xiao-bao,YU Bo,SONG Yan,ZHAN Yan-yun(1.Static Grid Electric Power Research Institute/NARI
摘要(Abstract)：
在分析变压器励磁涌流产生原因基础上,分析了系统阻抗、合闸角、剩磁以及变压器接线形式对励磁涌流的影响,并利用ATP平台进行了仿真验证。励磁涌流的仿真分析和研究将有助于电力变压器励磁涌流的判别。
This paper simulates and analyzes the inrush of three-phase transformer by the ATP.It concludes that when the transformer is the Yd connection,according to adjusting the switch angle of the system properly,there would be a inrush occurring in every phase by turns.Further more,the residual flux and the system resistance may affect the wave as well.The simulation and analysis are helpful for the research on how to discriminate the inrush.
关键词(KeyWords)：
变压器保护;励磁涌流;ATP;仿真
transformer protection;inrush current;ATP;simulation
基金项目(Foundation):
作者(Author):
刘小宝,俞波,宋艳,张艳云
LIU Xiao-bao,YU Bo,SONG Yan,ZHAN Yan-yun(1.Static Grid Electric Power Research Institute/NARI
DOI: 10.19585/j.zjdl.2010.04.001
参考文献(References)：
- 王维俭.电气主设备继电保护原理与运行[M].北京:中国电力出版社,1996.
- 郝治国,张保会,褚云龙.变压器励磁涌流鉴别技术的现状和发展[J].变压器,2005,42(7):23-27.
- 宗洪良,金华烽,朱振飞,等.基于励磁阻抗变化的变压器励磁涌流判别方法[J].中国电机工程学报,2001,21(7):91-94.
- 张雪松,何奔腾.基于误差估计的变压器励磁涌流识别原理[J].中国电机工程学报,2005,25(3):94-99.
- 吕志娟,刘万顺,肖仕武,等.一种快速识别变压器励磁涌流和内部故障的新方法[J].中国电机工程学报,2006,26(2):47-51.
- 王雪,王增平,徐岩.电力变压器励磁涌流和故障电流的仿真研究[J].高压电器,2003,39(6):11-14.
- 吕俪婷,罗建,黄正炫,等.电力变压器对称励磁涌流的仿真研究[J].继电器,2007,35(5):4-6,12.