Simulation of Magnetizing Current and Loss of the DC Bias of Converter Transformer Based on Coupled Electromagnetic Circuit Method

XIE Qingfeng

doi:10.13296/j.1001-1609.hva.2016.04.032

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Simulation of Magnetizing Current and Loss of the DC Bias of Converter Transformer Based on Coupled Electromagnetic Circuit Method

更新时间：2025-04-26

- Simulation of Magnetizing Current and Loss of the DC Bias of Converter Transformer Based on Coupled Electromagnetic Circuit Method
- High VoltageApparatus Vol. 52, Issue 4, Pages: 200-204(2016)
- 作者机构：
  
  西安西电变压器有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.04.032
  CLC： TM401;TM721.1
- Published：2016
- 稿件说明：
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[1]谢庆峰.基于场路耦合的换流变压器直流偏磁时激滋电流及损耗的仿真分析[J].高压电器,2016,52(04):200-204.

XIE Qingfeng. Simulation of Magnetizing Current and Loss of the DC Bias of Converter Transformer Based on Coupled Electromagnetic Circuit Method[J]. High voltageapparatus, 2016, 52(4): 200-204.
[1]谢庆峰.基于场路耦合的换流变压器直流偏磁时激滋电流及损耗的仿真分析[J].高压电器,2016,52(04):200-204. DOI： 10.13296/j.1001-1609.hva.2016.04.032.

XIE Qingfeng. Simulation of Magnetizing Current and Loss of the DC Bias of Converter Transformer Based on Coupled Electromagnetic Circuit Method[J]. High voltageapparatus, 2016, 52(4): 200-204. DOI： 10.13296/j.1001-1609.hva.2016.04.032.

摘要

提出了一种换流变压器的电路—磁路耦合模型。基于换流变压器的铁芯拓扑结构以及材料的饱和特性建立了磁路方程

将磁路方程与变压器一次侧、二次侧的电路方程进行耦合

得到了电路—磁路耦合模型。将该研究方法用于一台换流变压器有限元模型

对比分析了该变压器在正常运行与直流偏磁两种工况下的励磁电流以及各结构件的损耗。结果表明

该研究方法可以有效准确地分析换流变压器在直流偏磁下的励磁电流及损耗。

Abstract

A coupled electromagnetic circuit method for converter transformer was proposed. The magnet circuit based on the topological structure and the saturation characteristics of core is established. The circuit-magnetic circuit model is achieved by coupling the magnet circuit with the circuit equation of primary side and secondary side of converter transformer. The research method is applied to a finite element model of a converter transformer and the exciting current of normal working condition and under DC bias is calculated together with the loss of structural component. The result shows the exciting current and loss can be predicted and analyzed accurately using this method.

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