Disturbance Elimination for Partial Discharge Detection in the Spacer of Gas-Insulated Switchgears
With the increasing demand for precise condition monitoring and diagnosis of gas-insulated switchgears (GISs), it has become a challenge to improve the detection sensitivity of partial discharge (PD) induced in the GIS spacer. This paper deals with the elimination of the capacitive component from th...
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| Format: | Article |
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MDPI AG
2017-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/10/11/1762 |
| _version_ | 1798041656323211264 |
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| author | Guoming Wang Gyung-Suk Kil Hong-Keun Ji Jong-Hyuk Lee |
| author_facet | Guoming Wang Gyung-Suk Kil Hong-Keun Ji Jong-Hyuk Lee |
| author_sort | Guoming Wang |
| collection | DOAJ |
| description | With the increasing demand for precise condition monitoring and diagnosis of gas-insulated switchgears (GISs), it has become a challenge to improve the detection sensitivity of partial discharge (PD) induced in the GIS spacer. This paper deals with the elimination of the capacitive component from the phase-resolved partial discharge (PRPD) signal generated in GIS spacers based on discrete wavelet transform (WT). Three types of typical insulation defects were simulated using PD cells. The single PD pulses were detected and were further used to determine the optimal mother wavelet. As a result, the bior6.8 was selected to decompose the PD signal into 8 levels and the signal energy at each level was calculated. The decomposed components related with capacitive disturbance were discarded, whereas those associated with PD were de-noised by a threshold and a thresholding function. Finally, the PRPD signals were reconstructed using the de-noised components. |
| first_indexed | 2024-04-11T22:24:34Z |
| format | Article |
| id | doaj.art-522c701860364c4487418041ad6ce00a |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:24:34Z |
| publishDate | 2017-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-522c701860364c4487418041ad6ce00a2022-12-22T03:59:52ZengMDPI AGEnergies1996-10732017-11-011011176210.3390/en10111762en10111762Disturbance Elimination for Partial Discharge Detection in the Spacer of Gas-Insulated SwitchgearsGuoming Wang0Gyung-Suk Kil1Hong-Keun Ji2Jong-Hyuk Lee3Department of Electrical and Electronics Engineering, Korea Maritime and Ocean University, Busan 49112, KoreaDepartment of Electrical and Electronics Engineering, Korea Maritime and Ocean University, Busan 49112, KoreaForensic Safety Section, National Forensic Service Busan Institute, Yangsan 50612, KoreaHVDC Production Team, LSIS Co., Ltd., Busan 46739, KoreaWith the increasing demand for precise condition monitoring and diagnosis of gas-insulated switchgears (GISs), it has become a challenge to improve the detection sensitivity of partial discharge (PD) induced in the GIS spacer. This paper deals with the elimination of the capacitive component from the phase-resolved partial discharge (PRPD) signal generated in GIS spacers based on discrete wavelet transform (WT). Three types of typical insulation defects were simulated using PD cells. The single PD pulses were detected and were further used to determine the optimal mother wavelet. As a result, the bior6.8 was selected to decompose the PD signal into 8 levels and the signal energy at each level was calculated. The decomposed components related with capacitive disturbance were discarded, whereas those associated with PD were de-noised by a threshold and a thresholding function. Finally, the PRPD signals were reconstructed using the de-noised components.https://www.mdpi.com/1996-1073/10/11/1762partial discharge (PD)gas-insulated switchgears (GISs)spacercapacitive componentwavelet transform (WT)multi-resolution analysis (MRA) |
| spellingShingle | Guoming Wang Gyung-Suk Kil Hong-Keun Ji Jong-Hyuk Lee Disturbance Elimination for Partial Discharge Detection in the Spacer of Gas-Insulated Switchgears Energies partial discharge (PD) gas-insulated switchgears (GISs) spacer capacitive component wavelet transform (WT) multi-resolution analysis (MRA) |
| title | Disturbance Elimination for Partial Discharge Detection in the Spacer of Gas-Insulated Switchgears |
| title_full | Disturbance Elimination for Partial Discharge Detection in the Spacer of Gas-Insulated Switchgears |
| title_fullStr | Disturbance Elimination for Partial Discharge Detection in the Spacer of Gas-Insulated Switchgears |
| title_full_unstemmed | Disturbance Elimination for Partial Discharge Detection in the Spacer of Gas-Insulated Switchgears |
| title_short | Disturbance Elimination for Partial Discharge Detection in the Spacer of Gas-Insulated Switchgears |
| title_sort | disturbance elimination for partial discharge detection in the spacer of gas insulated switchgears |
| topic | partial discharge (PD) gas-insulated switchgears (GISs) spacer capacitive component wavelet transform (WT) multi-resolution analysis (MRA) |
| url | https://www.mdpi.com/1996-1073/10/11/1762 |
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