| 引用本文: | 黄咏容,李群湛,郝文斌,等.基于EMTDC的三相变压器励磁涌流和内部故障仿真[J].电力系统保护与控制,2007,35(1):26-30. |
| HUANG Yong-rong,LI Qun-zhan,HAO Wen-bin,et al.Simulation for magnetic inrush and fault current of three-phase transformer based on EMTDC[J].Power System Protection and Control,2007,35(1):26-30 |
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| 摘要: |
| 变压器保护的核心问题是励磁涌流和内部故障电流的鉴别，而对变压器励磁涌流和内部故障电流的有效仿真是进行正确鉴别的基础。在分析电磁暂态仿真软件EMTDC（ Electro-Magnetic Transient in DC System）里变压器模型的基础上，构建模型对变压器励磁涌流和内部故障电流进行了仿真，并对仿真结果进行了间断角和二次谐波含量分析。结果表明，利用EMTDC能够根据不同的条件和要求有效地实现变压器励磁涌流和内部故障电流的仿真。 |
| 关键词: 变压器 EMTDC 励磁涌流 内部故障电流 |
| DOI：10.7667/j.issn.1674-3415.2007.01.006 |
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| Simulation for magnetic inrush and fault current of three-phase transformer based on EMTDC |
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HUANG Yong-rong, LI Qun-zhan, HAO Wen-bin, ZHI Hui
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Department of Electric Engineering, Southwest Jiaotong University, Chengdu 610031,China
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| Abstract: |
| The key of transformer protection is to distinguish magnetic inrush from fault current. Effective simulations for magnetic inrush and fault current of transformer are the foundation of right division. In this paper, based on the study on the model of electrical transformer in EMTDC (Electro-Magnetic Transient in DC System), the simulations for magnetic inrush and fault current of three-phase transformer are done. And analysis are given to the simulation. The results show that EMTDC can effectively simulate the magnetic inrush and fault current of transformers under different conditions. |
| Key words: transformer EMTDC magnetic inrush fault current |
