| 基于小波包能量熵的变压器振动信号特征研究 |
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| 引用本文： | 刘 珊,曹海泉,于 海,洪 刚. 基于小波包能量熵的变压器振动信号特征研究[J]. 电网与清洁能源, 2010, 26(5): 35-38 |
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| 作者姓名： | 刘 珊 曹海泉 于 海 洪 刚 |
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| 作者单位： | 中国水电顾问集团 西北勘测设计研究院， 西安 710056;宜宾电业局，四川 宜宾 644002;沧州供电公司，河北 沧州 061000;西安理工大学 电力工程系，西安 710048 |
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| 基金项目： | 霍英东高校青年教师基金（101076） |
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| 摘 要： | 利用小波包分解原理将变压器振动信号分解到不同的频段中,然后计算各频段的能量熵值,最后根据该能量熵值来对变压器绕组进行故障诊断。试验结果表明,该方法能够突显变压器绕组的故障特征信息,为变压器绕组的早期故障的诊断奠定了坚实的基础。
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| 关 键 词： | 变压器；绕组；振动信号；小波包能量熵 |
Features of Vibration Signal of Transformer Based on the Wavelet Packet Energy Entropy |
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| LIU Shan,CAO Hai-quan,YU Hai and HONG Gang. Features of Vibration Signal of Transformer Based on the Wavelet Packet Energy Entropy[J]. Power system and clean energy, 2010, 26(5): 35-38 |
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| Authors: | LIU Shan CAO Hai-quan YU Hai HONG Gang |
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| Abstract: | In this paper, the wavelet packet is used to decompose the vibration signal of the transformer into different frequency bands, and then the energy entropy of each band is calculated. The entropy value (WP-EE) worked out is then used for the fault diagnosis of transformer windings. The results of experiments show that this method can highlight the characteristic information of faults in windings, therefore it lays a solid foundation in detecting the incipient faults in windings. |
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