Stray Loss of Non-magnetic Part of Transformer Under Harmonic Magnetic Field in HVDC Transmission System

ZHAO Zhigang; SHI Wenjun; LIU Huimin; ZHAO Jie

doi:10.13296/j.1001-1609.hva.2018.09.017

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Stray Loss of Non-magnetic Part of Transformer Under Harmonic Magnetic Field in HVDC Transmission System

更新时间：2025-04-26

- Stray Loss of Non-magnetic Part of Transformer Under Harmonic Magnetic Field in HVDC Transmission System
- High VoltageApparatus Vol. 54, Issue 9, Pages: 111-116(2018)
- 作者机构：
  
  河北工业大学电磁场与电器可靠性省部共建重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.09.017
  CLC： TM41
- Published：2018
- 稿件说明：
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[1]赵志刚,史文军,刘慧敏,赵捷.HVDC中电力变压器非导磁构件谐波杂散损耗问题研究[J].高压电器,2018,54(09):111-116.

ZHAO Zhigang, SHI Wenjun, LIU Huimin, et al. Stray Loss of Non-magnetic Part of Transformer Under Harmonic Magnetic Field in HVDC Transmission System[J]. High voltageapparatus, 2018, 54(9): 111-116.
[1]赵志刚,史文军,刘慧敏,赵捷.HVDC中电力变压器非导磁构件谐波杂散损耗问题研究[J].高压电器,2018,54(09):111-116. DOI： 10.13296/j.1001-1609.hva.2018.09.017.

ZHAO Zhigang, SHI Wenjun, LIU Huimin, et al. Stray Loss of Non-magnetic Part of Transformer Under Harmonic Magnetic Field in HVDC Transmission System[J]. High voltageapparatus, 2018, 54(9): 111-116. DOI： 10.13296/j.1001-1609.hva.2018.09.017.

摘要

为研究高压直流输电系统（HVDC）换流变压器中非导磁构件杂散损耗的分布

文中基于TEAMProblem 21基准族中的P21a-0的简化模型进行了详细的实验研究与仿真分析

详细考察了不同激励下变压器中非导磁结构件杂散损耗的分布。针对不同频率的单一正弦激励和谐波激励

分别进行了详细的实验研究和数据分析。提出采用瞬态场法求解谐波磁场作用下非导磁钢板杂散损耗的实用措施

不同谐波磁场作用下非导磁钢板杂散损耗计算值与实验值具有较好的一致性。研究结果表明

在激励电流有效值相等的条件下

谐波电流含量越高非导磁钢板中涡流损耗越大;但是

谐波电流相位的变化不会对非导磁钢板中杂散损耗产生影响

这与导磁钢板的谐波磁损耗特性有明显差异。所得结果、结论有助于通过优化设计提高变压器的性能。

Abstract

To study the stray loss of non-magnetic part of the converter transformer in high voltage direct current（HVDC）transmission system

the effects of different excitation patterns on the stray loss were investigated in detailbased on the simplified model of P21 a-0. The stray losses of the non-magnetic steel part were obtained experimental-ly by changing the content and phase of the harmonic. Some practical engineering-oriented approaches were pro-posed to solve the eddy-current problem under harmonic magnetic field excitation. The calculated and measuredstray loss values in different testing conditions are well in agreement. Conclusions are drawn that the phase of the har-monic current has no effect on the stray loss of the non-magnetic steel

which are different from ferromagnetic materi-al. When the effective values of excitation current are equivalent

the stray loss of the non-magnetic steel increaseswith the increase of the harmonic content.

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