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Off-line testing of a wavelet packet-based algorithm for discriminating inrush current in three-phase power transformers

机译：基于小波包判别的三相电力变压器浪涌电流算法的离线测试

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This paper introduces a novel current diagnosis and protection technique, which is based on wavelet packet transform (WPT). The WPT algorithm is implemented and tested, where the output of the second level details is able to provide the needed signature to diagnose the type of the current flowing through the transformer. The proposed technique is implemented using Daubechies Mother wavelet, and simulated using MATLAB on differential currents data collected form a prototype three-phase power transformer. The WPT technique performed successfully by identifying different currents data including magnetizing inrush, normal current and different fault currents for different types of loading and energizing conditions.

机译：本文介绍了一种基于小波包变换（WPT）的新型电流诊断和保护技术。 WPT算法已实现并经过测试，其中第二级详细信息的输出能够提供所需的签名，以诊断流经变压器的电流的类型。所提出的技术是使用Daubechies Mother小波实现的，并使用MATLAB对从原型三相电力变压器采集的差分电流数据进行了仿真。 WPT技术通过针对不同类型的负载和通电条件识别出不同的电流数据（包括励磁涌流，正常电流和不同的故障电流）而成功完成了工作。

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来源
《NASCODE V》|1987年|p.38-42|共5页
会议地点 Dublin(IE);Dublin(IE)
作者
Saleh S.A.; Rahman M.A.;
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作者单位

Fac. of Eng. Appl. Sci., Memorial Univ. of Newfoundland, St. John's, Nfld., Canada;

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原文格式 PDF
正文语种 eng
中图分类结构、器件;
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1. A novel algorithm for discrimination between inrush current and internal faults in power transformer differential protection based on discrete wavelet transform [J] . A.A. Hossam Eldin, M.A. Refaey Electric power systems research . 2011,第1期

机译：基于离散小波变换的变压器差动保护涌流与内部故障判别新算法。
2. A novel wavelet-based algorithm for discrimination of internal faults from magnetizing inrush currents in power transformers [J] . Faiz J., Lotfi-Fard S. IEEE Transactions on Power Delivery . 2006,第期

机译：一种基于小波的新颖算法，用于从变压器的励磁涌流中识别内部故障
3. A novel wavelet-based algorithm for discrimination of internal faults from magnetizing inrush currents in power transformers [J] . Faiz J., Lotfi-Fard S. IEEE Transactions on Power Delivery . 2006,第4期

机译：一种基于小波的新颖算法，用于从变压器的励磁涌流中识别内部故障
4. Off-line Testing of a Wavelet Packet-Based Algorithm for Discriminating Inrush Current in Three-Phase Power Transformers [C] . S. A. Sal eh, M. A. Rahman Large Engineering Systems Conference on Power Engineering . 2003

机译：基于小波分组的离线测试，用于三相电力变压器中的浪涌电流辨别浪涌电流
5. Investigation of application of wavelets to detect minor insulation failures during impulse tests on power transformers [D] . Fernando, Sudath Namal 2008

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Off-line testing of a wavelet packet-based algorithm for discriminating inrush current in three-phase power transformers

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