| 接地变压器故障仿真分析 |
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| 引用本文： | 曾祥君,陶金,郭璞维,冯凯辉,李健.接地变压器故障仿真分析[J].电力科学与技术学报,2010,25(3):47-53. |
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| 作者姓名： | 曾祥君 陶金 郭璞维 冯凯辉 李健 |
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| 作者单位： | 长沙理工大学,电气与信息工程学院,湖南,长沙,410004;神华集团,国华三河发电有限公司,河北,三河,065201 |
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| 基金项目： | 湖南省自然科学基金委员会与衡阳市政府自然科学联合基金，湖南省高校创新平台开放基金，湖南省高校科技成果产业化培育资助 |
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| 摘 要： | 解决现有接地变压器仿真技术的难题,分析接地变压器的特殊结构原理,建立接地变压器的数学模型,并对接地变压器外部故障及内部绕组故障进行理论分析;在此基础上,提出一种在MATLAB仿真平台中利用3个单相5绕组变压器模块搭建接地变压器模型的方法,实现接地变压器引出线故障、内部绕组任一点接地故障和匝间短路故障的仿真,可以应用于接地变压器的保护设计.仿真结果与理论分析结果吻合,证明了所提出的模型正确、合理.
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| 关 键 词： | 接地变压器 中性点 故障仿真 相间故障 匝间故障 |
Simulation analysis for grounding transformer |
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| ZENG Xiang-jun,TAO Jin,GUO Pu-wei,FENG Kai-hui,LI Jian.Simulation analysis for grounding transformer[J].JOurnal of Electric Power Science And Technology,2010,25(3):47-53. |
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| Authors: | ZENG Xiang-jun TAO Jin GUO Pu-wei FENG Kai-hui LI Jian |
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| Affiliation: | 1. School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410004, China; 2. Shenhua,Guohua Sanhe Power generation Company,Sanhe 065201, China) |
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| Abstract: | The structure of grounding transformer and its electromagnetic relation are analyzed in this paper. A zigzag grounding transformer is modeled in MATLAB simulator with single-phase 5 winding transformers. Phase-to-phase faults and interterm faults in any point are simulated with the model, which can be applied in the design for grounding transformer protection. Simulation results prove the correctness and validity of the developed model |
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| Keywords: | grounding transformer neutral point phase-to-phase faults fault simulation intert- erm faults |
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