Off-line Testing of a Wavelet Packet-Based Algorithm for Discriminating Inrush Current in Three-Phase Power Transformers

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

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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：本文介绍了一种新型电流诊断和保护技术，基于小波包变换（WPT）。实现和测试WPT算法，其中第二级细节的输出能够提供所需的签名以诊断流过变压器的电流类型。所提出的技术是使用Daubechies母小波实现的，并使用MATLAB进行模拟在收集的差分电流上形成原型三相电力变压器。 WPT技术通过识别不同的电流数据来成功地进行，包括用于不同类型的装载和激励条件的磁化浪涌，正常电流和不同的故障电流。

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《Large Engineering Systems Conference on Power Engineering》|2003年||共5页
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S. A. Sal eh; M. A. Rahman;
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中图分类 TM7-53;
关键词
Wavelet transforms; Daubechies family wavelets; Multi-resolution Analysis;

机译：小波变换;Daubechies家族小波;多分辨率分析;

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专利

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

机译：小波在电力变压器冲击试验中检测微小绝缘故障的应用研究
6. Dissolved Gases Forecasting Based on Wavelet Least Squares Support Vector Regression and Imperialist Competition Algorithm for Assessing Incipient Faults of Transformer Polymer Insulation [O] . Jiefeng Liu, Hanbo Zheng, Yiyi Zhang, 2019

机译：基于小波最小二乘支持向量回归和帝国竞争算法的变压器聚合物绝缘初发故障溶解气体预测。
7. Discrimination of Internal Fault Current and Inrush Current in a Power Transformer Using Empirical Wavelet Transform [O] . Maya P., shree S. Vidya, Roopasree K., 2015

机译：基于经验小波变换的电力变压器内部故障电流和浪涌电流判别

Off-line Testing of a Wavelet Packet-Based Algorithm for Discriminating Inrush Current in Three-Phase Power Transformers

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