A Field Calibration Method for UHF Partial Discharge On-line Monitoring System Based on Cross-check Algorithm
Partial discharge (PD) on-line monitoring device plays an important role in comprehensive perception and intelligent diagnosis of equipment conditions. Affected by the operational environment, manufacturing technology and other factors, the on-line PD sensors are deteriorated in performance with the...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
State Grid Energy Research Institute
2022-04-01
|
| Series: | Zhongguo dianli |
| Subjects: | |
| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202110058 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850053982844616704 |
|---|---|
| author | Nan LI Songyuan LI Xuejun SHANG Bowen GUO Lin LI Guoqiang ZU Kai HOU |
| author_facet | Nan LI Songyuan LI Xuejun SHANG Bowen GUO Lin LI Guoqiang ZU Kai HOU |
| author_sort | Nan LI |
| collection | DOAJ |
| description | Partial discharge (PD) on-line monitoring device plays an important role in comprehensive perception and intelligent diagnosis of equipment conditions. Affected by the operational environment, manufacturing technology and other factors, the on-line PD sensors are deteriorated in performance with the increase of their service time, the sensors’ calibration is thus imperative. An optimized field calibration method is proposed for the internal ultrahigh frequency partial discharge (UHF-PD) sensors of on-line PD monitoring system. Firstly, the influencing factors on the field calibration of the UHF-PD on-line monitoring system are analyzed from three aspects including sensors’ working features, installation location and signal transmission attenuation properties. Then, a novel cross-check method is proposed based on the traditional GIGRE method. Through horizontal comparison between different phases and mirror comparison between input/output signals, the effects of absolute-value check on the accuracy of sensor’s calibration is significantly decreased, thus improving the overall calibration efficiency. Finally, the proposed method was applied in a 500 kV substation for field calibration of the UHF-PD on-line monitoring system, and identified three typical defects, including the degraded sensors’ sensitivity, unreasonable sensors arrangement and faulted acquisition board. The results verified the effectiveness and feasibility of the proposed method. |
| format | Article |
| id | doaj-art-2cafc47f3a974813a337c9b37cf2024c |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2022-04-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-2cafc47f3a974813a337c9b37cf2024c2025-08-20T02:52:24ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492022-04-0155410010710.11930/j.issn.1004-9649.202110058zgdl-55-3-linanA Field Calibration Method for UHF Partial Discharge On-line Monitoring System Based on Cross-check AlgorithmNan LI0Songyuan LI1Xuejun SHANG2Bowen GUO3Lin LI4Guoqiang ZU5Kai HOU6School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, ChinaElectric Power Research Institute, State Grid Tianjin Electric Power Company, Tianjin 300384, ChinaElectric Power Research Institute, State Grid Tianjin Electric Power Company, Tianjin 300384, ChinaElectric Power Research Institute, State Grid Tianjin Electric Power Company, Tianjin 300384, ChinaElectric Power Research Institute, State Grid Tianjin Electric Power Company, Tianjin 300384, ChinaElectric Power Research Institute, State Grid Tianjin Electric Power Company, Tianjin 300384, ChinaSchool of Electrical and Information Engineering, Tianjin University, Tianjin 300072, ChinaPartial discharge (PD) on-line monitoring device plays an important role in comprehensive perception and intelligent diagnosis of equipment conditions. Affected by the operational environment, manufacturing technology and other factors, the on-line PD sensors are deteriorated in performance with the increase of their service time, the sensors’ calibration is thus imperative. An optimized field calibration method is proposed for the internal ultrahigh frequency partial discharge (UHF-PD) sensors of on-line PD monitoring system. Firstly, the influencing factors on the field calibration of the UHF-PD on-line monitoring system are analyzed from three aspects including sensors’ working features, installation location and signal transmission attenuation properties. Then, a novel cross-check method is proposed based on the traditional GIGRE method. Through horizontal comparison between different phases and mirror comparison between input/output signals, the effects of absolute-value check on the accuracy of sensor’s calibration is significantly decreased, thus improving the overall calibration efficiency. Finally, the proposed method was applied in a 500 kV substation for field calibration of the UHF-PD on-line monitoring system, and identified three typical defects, including the degraded sensors’ sensitivity, unreasonable sensors arrangement and faulted acquisition board. The results verified the effectiveness and feasibility of the proposed method.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202110058uhf-pd on-line monitoring systemfield calibrationlean evaluationcross-checkidentification of typical defects |
| spellingShingle | Nan LI Songyuan LI Xuejun SHANG Bowen GUO Lin LI Guoqiang ZU Kai HOU A Field Calibration Method for UHF Partial Discharge On-line Monitoring System Based on Cross-check Algorithm Zhongguo dianli uhf-pd on-line monitoring system field calibration lean evaluation cross-check identification of typical defects |
| title | A Field Calibration Method for UHF Partial Discharge On-line Monitoring System Based on Cross-check Algorithm |
| title_full | A Field Calibration Method for UHF Partial Discharge On-line Monitoring System Based on Cross-check Algorithm |
| title_fullStr | A Field Calibration Method for UHF Partial Discharge On-line Monitoring System Based on Cross-check Algorithm |
| title_full_unstemmed | A Field Calibration Method for UHF Partial Discharge On-line Monitoring System Based on Cross-check Algorithm |
| title_short | A Field Calibration Method for UHF Partial Discharge On-line Monitoring System Based on Cross-check Algorithm |
| title_sort | field calibration method for uhf partial discharge on line monitoring system based on cross check algorithm |
| topic | uhf-pd on-line monitoring system field calibration lean evaluation cross-check identification of typical defects |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202110058 |
| work_keys_str_mv | AT nanli afieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT songyuanli afieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT xuejunshang afieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT bowenguo afieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT linli afieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT guoqiangzu afieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT kaihou afieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT nanli fieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT songyuanli fieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT xuejunshang fieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT bowenguo fieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT linli fieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT guoqiangzu fieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm AT kaihou fieldcalibrationmethodforuhfpartialdischargeonlinemonitoringsystembasedoncrosscheckalgorithm |