Temperature Rise Calculation and Test of Large Capacity Dry-type Air-core Reactor Under AC and DC Superimposed Current

SUN Guohua; ZHANG Meng; XI Jingliang; LIU Chengzhu; XIA Zhihui; LIU Xuefeng

doi:10.13296/j.1001-1609.hva.2025.07.013

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Temperature Rise Calculation and Test of Large Capacity Dry-type Air-core Reactor Under AC and DC Superimposed Current

Research & Analysis | 更新时间：2025-06-30

- Temperature Rise Calculation and Test of Large Capacity Dry-type Air-core Reactor Under AC and DC Superimposed Current
- High Voltage Apparatus Vol. 61, Issue 7, Pages: 108-114(2025)
- 作者机构：
  
  北京电力设备总厂有限公司，北京　102401
- 作者简介：
- 基金信息：
  
  National Key Research and Development Program of China(2016YFB0900800;2016YFB0900803)
- DOI：10.13296/j.1001-1609.hva.2025.07.013
  CLC：
- Received：17 January 2025，
  
  Revised：20 March 2025，
  
  Published：16 July 2025
- 稿件说明：
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SUN Guohua, ZHANG Meng, XI Jingliang, et al. Temperature Rise Calculation and Test of Large Capacity Dry-type Air-core Reactor Under AC and DC Superimposed Current[J]. High voltage apparatus, 2025, 61(7): 108-114.
DOI：

SUN Guohua, ZHANG Meng, XI Jingliang, et al. Temperature Rise Calculation and Test of Large Capacity Dry-type Air-core Reactor Under AC and DC Superimposed Current[J]. High voltage apparatus, 2025, 61(7): 108-114. DOI： 10.13296/j.1001-1609.hva.2025.07.013.

摘要

针对交流电流和直流电流工况下干式空心电抗器温升分布特性差异，依托南方电网公司乌东德电站送电广东广西特高压多端示范工程，采用仿真与试验相结合的方法，研究干式空心电抗器绕组及金属辅件在交、直流电流下的温升分布特性。研究及试验结果表明：①电抗器绕组及金属辅件温升试验结果与计算结果一致性较高，且满足技术规范要求；②基于电抗器交流温升与直流温升的试验结果，可计算交、直流叠加电流下电抗器绕组温升；③交、直流叠加电流下电抗器绕组温升始终小于同幅值交流电流与直流电流下电抗器绕组温升之和。上述研究成果可为交、直流叠加电流下干式空心电抗器设计和试验提供参考依据。

Abstract

In view of the differences of temperature rise distribution characteristic of dry-type air-core reactor under AC current and DC current

the temperature rise distribution characteristic of winding and metal parts of dry-type air-core reactor under AC current and DC current by using the combination method of simulation and test based on Wudongde to Guangdong and Guangxi multi-terminal HVDC transmission demonstration project of China Southern Power Grid Company Limited is studied. The research and test results show that firstly

the temperature rise test results of winding and metal parts of reactor has a high consistency with the calculation results and meet technical specification requirement. Secondly

the winding temperature rise under AC and DC superimposed current can be calculated based on the results of AC temperature rise test and DC temperature rise test of reactor. Thirdly

the temperature rise of reactor winding under AC and DC superimposed current is always less than the sum of winding temperature rise under AC current and DC current of the same amplitude. The research results above can provide a reference for design and test of dry-type air-core reactor under AC and DC superimposed current.

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