| 引用本文: | 吴 俊,王 磊,黄佳霖,等.变压器涌流Hamming贴近度模糊识别原理分析[J].电力系统保护与控制,2007,35(12):1-4. |
| WU Jun,WANG Lei, HUANG Jia-lin,et al.Analysis of transformer inrush current hamming close degree fuzzy recognition theory[J].Power System Protection and Control,2007,35(12):1-4 |
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| 摘要: |
| 针对某一变电站变压器投运时继电保护装置的误动，根据现场实测的故障录波波形和数据，判断出误动是由于主二保护装置没有正确的进行励磁涌流闭锁造成的。在保护装置的技术说明文档中查明了主二保护装置励磁涌流闭锁原理后，应用数学方法分析了此类型保护装置的励磁涌流判据，指出了Hamming贴近度模糊识别原理的种种不稳定性因素。针对其缺陷，提出了一种神经网络结构和Hamming贴近度模糊识别原理相结合的多隶属函数判别方法。 |
| 关键词: 差动保护 励磁涌流 模糊识别原理 电力系统 变压器 |
| DOI：10.7667/j.issn.1674-3415.2007.12.001 |
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| Analysis of transformer inrush current hamming close degree fuzzy recognition theory |
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WU Jun, WANG Lei, HUANG Jia-lin, PANG Yuan-feng
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Guangzhou Power Supply Bureau, Guangzhou 510245, China
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| Abstract: |
| Transformer relay protection equipment misoperation when the transformer is ready to run in a substation. According to the fault wave graphics and data, error action of transformer relay protection equipment is caused by loss of magnetic inrush current closedown of second relay protection equipment. After investigating the magnetic inrush current closedown elements of second protection equipment in the technology documents, this paper analyses the magnetic inrush current criterion by mathematics method, points out the instability of hamming close degree fuzzy recognition theory. Aiming at its bug, this paper puts forward a multi-subordinate function criterion solution based on the combination of nerve network framework and hamming close degree fuzzy recognition theory. |
| Key words: differential protection magnetic inrush current fuzzy recognition theory power system transformer |
