Application Research of the Sparse Representation of Eigenvector on the PD Positioning in the Transformer Oil
The partial discharge (PD) detection of electrical equipment is important for the safe operation of power system. The ultrasonic signal generated by the PD in the oil is a broadband signal. However, most methods of the array signal processing are used for the narrowband signal at present, and the ef...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2016/1343194 |
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| _version_ | 1849412831826411520 |
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| author | Qing Xie Dan Liu Ying Zhang Shuguo Gao Tong Li Xinjie Wang Fangcheng Lü |
| author_facet | Qing Xie Dan Liu Ying Zhang Shuguo Gao Tong Li Xinjie Wang Fangcheng Lü |
| author_sort | Qing Xie |
| collection | DOAJ |
| description | The partial discharge (PD) detection of electrical equipment is important for the safe operation of power system. The ultrasonic signal generated by the PD in the oil is a broadband signal. However, most methods of the array signal processing are used for the narrowband signal at present, and the effect of some methods for processing wideband signals is not satisfactory. Therefore, it is necessary to find new broadband signal processing methods to improve detection ability of the PD source. In this paper, the direction of arrival (DOA) estimation method based on sparse representation of eigenvector is proposed, and this method can further reduce the noise interference. Moreover, the simulation results show that this direction finding method is feasible for broadband signal and thus improve the following positioning accuracy of the three-array localization method. And experimental results verify that the direction finding method based on sparse representation of eigenvector is feasible for the ultrasonic array, which can achieve accurate estimation of direction of arrival and improve the following positioning accuracy. This can provide important guidance information for the equipment maintenance in the practical application. |
| format | Article |
| id | doaj-art-4ce041f1fa9b47d3b0e16ce376f0b4f6 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-4ce041f1fa9b47d3b0e16ce376f0b4f62025-08-20T03:34:20ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772016-01-01201610.1155/2016/13431941343194Application Research of the Sparse Representation of Eigenvector on the PD Positioning in the Transformer OilQing Xie0Dan Liu1Ying Zhang2Shuguo Gao3Tong Li4Xinjie Wang5Fangcheng Lü6State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding, Hebei 071003, ChinaHebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding, Hebei 071003, ChinaHebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding, Hebei 071003, ChinaState Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, ChinaHebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding, Hebei 071003, ChinaDepartment of English, North China Electric Power University, Baoding, Hebei 071003, ChinaHebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding, Hebei 071003, ChinaThe partial discharge (PD) detection of electrical equipment is important for the safe operation of power system. The ultrasonic signal generated by the PD in the oil is a broadband signal. However, most methods of the array signal processing are used for the narrowband signal at present, and the effect of some methods for processing wideband signals is not satisfactory. Therefore, it is necessary to find new broadband signal processing methods to improve detection ability of the PD source. In this paper, the direction of arrival (DOA) estimation method based on sparse representation of eigenvector is proposed, and this method can further reduce the noise interference. Moreover, the simulation results show that this direction finding method is feasible for broadband signal and thus improve the following positioning accuracy of the three-array localization method. And experimental results verify that the direction finding method based on sparse representation of eigenvector is feasible for the ultrasonic array, which can achieve accurate estimation of direction of arrival and improve the following positioning accuracy. This can provide important guidance information for the equipment maintenance in the practical application.http://dx.doi.org/10.1155/2016/1343194 |
| spellingShingle | Qing Xie Dan Liu Ying Zhang Shuguo Gao Tong Li Xinjie Wang Fangcheng Lü Application Research of the Sparse Representation of Eigenvector on the PD Positioning in the Transformer Oil International Journal of Antennas and Propagation |
| title | Application Research of the Sparse Representation of Eigenvector on the PD Positioning in the Transformer Oil |
| title_full | Application Research of the Sparse Representation of Eigenvector on the PD Positioning in the Transformer Oil |
| title_fullStr | Application Research of the Sparse Representation of Eigenvector on the PD Positioning in the Transformer Oil |
| title_full_unstemmed | Application Research of the Sparse Representation of Eigenvector on the PD Positioning in the Transformer Oil |
| title_short | Application Research of the Sparse Representation of Eigenvector on the PD Positioning in the Transformer Oil |
| title_sort | application research of the sparse representation of eigenvector on the pd positioning in the transformer oil |
| url | http://dx.doi.org/10.1155/2016/1343194 |
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