DC Bias Characteristics Computation of UHV Regulation Transformer

XU Jianwen; LI Shulian; DU Jianping; LI Mingyang

doi:10.13296/j.1001-1609.hva.2018.04.015

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DC Bias Characteristics Computation of UHV Regulation Transformer

更新时间：2025-04-26

- DC Bias Characteristics Computation of UHV Regulation Transformer
- High VoltageApparatus Vol. 54, Issue 4, Pages: 100-106(2018)
- 作者机构：
  
  1. 山东电力设备有限公司
  2. 华北电力大学高电压与电磁兼容北京市重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.04.015
  CLC： TM423
- Published：2018
- 稿件说明：
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[1]胥建文,李书连,杜建平,李明洋.特高压调压变压器直流偏磁特性计算[J].高压电器,2018,54(04):100-106.

XU Jianwen, LI Shulian, DU Jianping, et al. DC Bias Characteristics Computation of UHV Regulation Transformer[J]. High voltageapparatus, 2018, 54(4): 100-106.
[1]胥建文,李书连,杜建平,李明洋.特高压调压变压器直流偏磁特性计算[J].高压电器,2018,54(04):100-106. DOI： 10.13296/j.1001-1609.hva.2018.04.015.

XU Jianwen, LI Shulian, DU Jianping, et al. DC Bias Characteristics Computation of UHV Regulation Transformer[J]. High voltageapparatus, 2018, 54(4): 100-106. DOI： 10.13296/j.1001-1609.hva.2018.04.015.

摘要

分析了特高压调压变压器的工作原理

获得直流偏磁下调压变压器的等效电路

建立了调压变压器的有限元磁场模型。基于时域场路耦合模型

计算分析了当调压抽头位于第一分接头时不同直流偏磁影响下特高压调压变压器的电流特性

也对比分析了调压变压器各绕组电流的谐波的变化规律。计算结果可为调压变压器的保护提供参考。

Abstract

In this paper the working principle of the UHV（ultra high voltage）regulation transformer is analyzed

the equivalent circuit under DC basis is obtained

and the FEM（finite element）magnetic field model of regulationtransformer is established. Based on the time-domain field-circuit coupled model

the current characteristics of theUHV regulation transformer under different DC bias are analyzed with the tap changer located at the first tap

thevariation law of the harmonics of each winding current is also analyzed. The calculation results can provide referencefor the protection of regulation transformer.

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