• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2013, Vol. 34 ›› Issue (11): 110-113.doi: 10.3969/j.issn.1000-7229.2013.11.022

• 设备与材料 • 上一篇    下一篇

一种新型变压器直流偏磁抑制装置

范永强,尹忠东,李和明   

  1. 新能源电力系统国家重点实验室(华北电力大学),北京市 102206
  • 出版日期:2013-11-01
  • 作者简介:范永强(1987),男,硕士研究生,主要从事电力电子技术在电力系统中的应用研究工作,E-mail: fyq0601@126.com; 尹忠东(1968),男,教授,主要从事风力发电、储能技术、微电网等方面的研究工作; 李和明(1957),男,教授,主要从事交换电机及其系统分析与监控,电机节能及控制技术等方面的研究工作。

A New Suppression Device of Transformer DC Magnetic Biasing

FAN Yongqiang, YIN Zhongdong,LI Heming   

  1. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
  • Online:2013-11-01

摘要:

高压直流输电单极大地回路运行产生的地电流会导致变压器直流偏磁, 引起变压器局部过热、振动加剧、噪声增大等不良反应。分析了直流偏磁对变压器影响以及抑制直流偏磁的主要方法,提出了抑制变压器直流偏磁的新装置拓扑,采用电位补偿原理,通过故障模拟仿真,完成了对整个装置的器件参数选型,为有关工程建设提供借鉴。

关键词: 直流输电, 变压器, 直流偏磁, 电位补偿, 仿真

Abstract:

HVDC power transmission system that works in monopolar operation will generate neutral current causing DC magnetic biasing of transformer, which will lead to the adverse reaction of transformer, such as local overheating, vibration increase and noise increase. The influence of DC magnetic biasing on transformer and the main suppression method of DC magnetic bias are analyzed. The new device topology of supressing transformer DC magnetic has been proposed, based on the principle of DC electric potential compensation. Through the fault simulation, the parameter selection for devices has been implemented,which could serve as references to relevant projects.

Key words: DC power transmission, transformer, DC magnetic biasing, electric potential compensation, simulation