An Analysis of Transformer Core Vibration and Noise under DC Bias Condition

被引：0
|
作者：
Xu, Yongming [1 ]
Dai, Meng [1 ]
Wang, Wenyi [1 ]
机构：
[1] Harbin Univ Sci & Technol, Motor Energy Conservat Technol Lab, Harbin 150000, Heilongjiang, Peoples R China
来源：
2017 INTERNATIONAL CONFERENCE ON COMPUTER SYSTEMS, ELECTRONICS AND CONTROL (ICCSEC) | 2017年
关键词：
transformer core; DC bias; vibration; noise;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In a high-voltage direct current (HVDC) transmission system operating in monopolar ground circuit mode, the earth electrode current flows into the transformer windings through the neutral point of the transformer. This situation leads to the DC bias phenomenon, which has many adverse effects on the transformer body, including insulation damage as well as increases in transformer loss, temperature, vibration, and noise [1]. Applying the basic theory of electromagnetic fields, this paper analyzes the effective coupling of several fields (electric, magnetic, structural force, and acoustic) by applying COMSOL Multiphysics software; we also obtain the vibration and noise distribution of the transformer before and after DC bias [2] [3].
引用
收藏
页码：1612 / 1615
页数：4
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