电工技术学报  2019, Vol. 34 Issue (4): 673-682    DOI: 10.19595/j.cnki.1000-6753.tces.180172
电机与电器 |
基于场路耦合的变压器绕组匝间短路电磁谐响应分析方法
潘超1, 米俭1, 王格万1, 蔡国伟1, 张永会2
1. 东北电力大学电气工程学院 吉林 132012;
2. 松花江水力发电有限公司吉林白山发电厂 吉林 132400
Electromagnetic Harmonic Response Analysis Method of Inter-Turn Short Circuit in Transformer Winding Based on Field Circuit Coupling
Pan Chao1, Mi Jian1, Wang Gewan1, Cai Guowei1, Zhang Yonghui2
1. Northeast Electric Power University Jilin 132012 China;
2. Jilin Baishan Power Plant Songhuajiang Hydraopower Co. Ltd Jilin 132400 China
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摘要 变压器绕组匝间短路会造成绕组结构严重变形甚至烧毁,从而影响到设备乃至系统的安全稳定运行。基于场路耦合原理建立单相变压器三维有限元模型,研究变压器空载运行绕组匝间短路问题,通过分析绕组不同位置匝间短路时的电流、磁通以及受力情况,研究变压器励磁与绕组受力的对应关系,并总结其变化规律。在此基础上,搭建变压器绕组匝间短路动模实验平台,测试短路绕组振动加速度,通过对比仿真结果与实验数据,验证了本文方法的正确性与有效性。
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关键词 场路耦合匝间短路谐响应振动频谱    
Abstract::Inter-turn short circuit may cause serious deformation or even burnout of the windings of transformer, thereby affecting the safety and stability of equipment and even the power system. In this paper, a three-dimensional finite element model of single-phase transformer is built based on the field-circuit coupled theory, and the transformer inter-turn short circuit problem is studied in no-load operation. By analyzing the winding current, flux and force as inter-turn short circuit appears in different positions, the relationship between the transformer excitation and the winding force is studied, and the changing regulation is summarized. The numerical simulation and physical test are then carried out. The vibration acceleration of short circuit winding is simulated and measured. By comparing the simulation results with the experimental data, the correctness and effectiveness of the method are verified.
Key wordsField-circuit coupling    inter-turn short circuit    harmonic response    vibration spectrum   
收稿日期: 2018-01-28      出版日期: 2019-03-01
PACS: TM412  
基金资助:吉林省科技发展计划(20166014)和国家自然科学基金(5150727)资助项目
作者简介: 潘超 男,1981年生,博士,副教授,主要研究领域为电力系统稳定与电磁兼容。E-mail: 31563018@qq.com; 米俭 男,1992年生,硕士研究生,研究方向为电力设备状态监测与故障诊断。
引用本文:   
潘超, 米俭, 王格万, 蔡国伟, 张永会. 基于场路耦合的变压器绕组匝间短路电磁谐响应分析方法[J]. 电工技术学报, 2019, 34(4): 673-682. Pan Chao, Mi Jian, Wang Gewan, Cai Guowei, Zhang Yonghui. Electromagnetic Harmonic Response Analysis Method of Inter-Turn Short Circuit in Transformer Winding Based on Field Circuit Coupling. Transactions of China Electrotechnical Society, 2019, 34(4): 673-682.
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