基于有限元耦合算法的变压器铁芯损耗计算

系统仿真学报 ›› 2016, Vol. 28 ›› Issue (8): 1757-1763.

基于有限元耦合算法的变压器铁芯损耗计算

王永强, 郑志宏, 欧阳宝龙, 李建芳

华北电力大学河北省输变电设备安全防御重点实验室,河北保定 071000

收稿日期:2015-06-24 修回日期:2015-08-23 出版日期:2016-08-08 发布日期:2020-08-17
作者简介:王永强(1975-),男,河北保定,博士,副教授,研究方向为在线监测及变电站自动化系统;郑志宏（1991-）,男,山西临汾,硕士生,研究方向为电力设备状态监测。
基金资助:
国家863计划(2014BJ0045),中央高校基本科研业务费专项资金(13MS73)

Calculation of Transformer Core Loss Based on Finite Element Coupling Algorithm

Wang Yongqiang, Zheng Zhihong, Ouyang Baolong, Li Jianfang

Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding 071000, China

Received:2015-06-24 Revised:2015-08-23 Online:2016-08-08 Published:2020-08-17

摘要/Abstract

摘要： 为了准确计算除尘变压器的铁芯损耗,在分析传统的有限元分析方法以及Steinmetz公式的基础上,提出了一种计算除尘变压器铁芯损耗的棱边元与节点元相结合的$E-\psi$法模型;并以一台20 kHz、50 kV、60 kW除尘变压器为例,建立了三维模型,计算了变压器的铁芯损耗。将利用该方法计算的出的铁芯损耗计算结果同实测值、节点有限元、棱边有限元以及Steinmetz公式计算结果进行对比。对比结果表明：该方法计算精度明显高于Steinmetz公式模型、棱边有限元法以及节点有限元法的计算结果。证明了该算法能够更加准确的计算变压器铁芯损耗。

关键词: 棱边元与节点元耦合算法, 高频变压器, 铁芯损耗, $E-\psi$法

Abstract: In order to accurately calculate the deducting transformer core loss, on the basis of analysis on traditional finite element method and Steinmetz method, an edge-nodal coupled $E-\psi$ method was proposed to calculate the High Power High Frequency High Voltage transformer core loss. Taking a 20 kHz, 50 kV, 60 kW transformer for example, the 3D model was established to calculate the transformer core loss. By comparing the measured data of transformer core loss with the figures calculated by edge-nodal coupled $E-\psi$ method, NFEM, EFEM and Steinmetz method, the comparison results show that: the edge-nodal coupled $E-\psi$ method has higher accuracy than results calculated by Steinmetz model, edge finite element method and node finite element method.

Key words: edge-nodal coupled method, high-frequency transformer, core loss, $E-\psi$ method

中图分类号:

TP391.9

王永强, 郑志宏, 欧阳宝龙, 李建芳. 基于有限元耦合算法的变压器铁芯损耗计算[J]. 系统仿真学报, 2016, 28(8): 1757-1763.

Wang Yongqiang, Zheng Zhihong, Ouyang Baolong, Li Jianfang. Calculation of Transformer Core Loss Based on Finite Element Coupling Algorithm[J]. Journal of System Simulation, 2016, 28(8): 1757-1763.

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