Research on the effects of Jiu—Hu HVDC project on transformer DC bias in Hunan power grid

YUE Yishi; ZHOU Nianguang; ZOU Yanhui; YE Huisheng; LIU Weiguo; CHAO Yafeng

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Research on the effects of Jiu—Hu HVDC project on transformer DC bias in Hunan power grid

更新时间：2025-11-18

- Research on the effects of Jiu—Hu HVDC project on transformer DC bias in Hunan power grid
- Vol. 36, Issue 3, Pages: 5-8(2016)
- 作者机构：
  
  国网湖南省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM721.1
- Published：2016
- 稿件说明：
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[1]岳一石,周年光,邹妍晖,叶会生,刘味果,巢亚锋.酒—湖线对湖南电网变压器的直流偏磁影响研究[J].湖南电力,2016,36(03):5-8.

YUE Yishi, ZHOU Nianguang, ZOU Yanhui, et al. Research on the effects of Jiu—Hu HVDC project on transformer DC bias in Hunan power grid[J]. 2016, 36(3): 5-8.
[1]岳一石,周年光,邹妍晖,叶会生,刘味果,巢亚锋.酒—湖线对湖南电网变压器的直流偏磁影响研究[J].湖南电力,2016,36(03):5-8. DOI：

YUE Yishi, ZHOU Nianguang, ZOU Yanhui, et al. Research on the effects of Jiu—Hu HVDC project on transformer DC bias in Hunan power grid[J]. 2016, 36(3): 5-8. DOI：

摘要

为分析酒—湖特高压直流输电工程产生的直流偏磁对湖南电网的影响

本文基于场路耦合方法

建立湖南交流电网直流电流分布模型

实测获得湖南地区典型土壤电阻模型;通过建立测试模型

验证建模方法的有效性;计算直流接地极注入5 000 A入地电流后湖南电网220kV及以上变电站的直流偏磁情况

并对计算结果进行讨论。

Abstract

In order to analyze DC bias problem generated by Jiu—Hu HVDC project

based on field-circuit coupling method

direct current distribution model of Hunan AC power grid is established and typical soil resistance model in Hunan is acquired by measuring. The effectiveness of modeling method is verified through test model. The DC magnetic bias condition of substations on 220kV or above in Hunan power grid by injecting 5000 A DC current through DC grounding electrode is calculated and the results are analyzed and discussed.

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