A Fault Diagnosis Method for On Load Tap Changer of Aerospace Power Grid Based on the Current Detection
As one of the key components of aerospace power grid, the performance of on load tap changer (OLTC) of power transformer is very important. So it is necessary to realize real-time monitoring of its status. At present, there is no feasible monitoring scheme to carry out on-line monitoring and fault d...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2018-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8334535/ |
| _version_ | 1818457637592760320 |
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| author | Zhenhua Li Qiuhui Li Zhengtian Wu Jie Yu Ronghao Zheng |
| author_facet | Zhenhua Li Qiuhui Li Zhengtian Wu Jie Yu Ronghao Zheng |
| author_sort | Zhenhua Li |
| collection | DOAJ |
| description | As one of the key components of aerospace power grid, the performance of on load tap changer (OLTC) of power transformer is very important. So it is necessary to realize real-time monitoring of its status. At present, there is no feasible monitoring scheme to carry out on-line monitoring and fault diagnosis for detecting faults of OLTC. The current waveform of the switching process will be abnormal due to the contact fault, the transition resistance fault, and most of the mechanical faults. This paper presents a fault diagnosis method for OLTC based on the current detection in the process of switching. Through on-line acquisition of current waveform in the switching process, empirical mode decomposition and Hilbert-Huang transform is used to calculate normalized time-frequency spectrum, and extract fault characteristic quantity, which can realize the comprehensive diagnosis of the running state of the equipment, and identify the early fault characteristics, and promote the process of the OLTC's maintenance, from regular test to condition based maintenance. Experiment results prove that the designed fault diagnosis instrument can effectively monitor the working condition of OLTC during the switching process and make effective fault diagnosis. |
| first_indexed | 2024-12-14T22:45:44Z |
| format | Article |
| id | doaj.art-3662f0021295448fb24ae0145f7d225c |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-14T22:45:44Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-3662f0021295448fb24ae0145f7d225c2022-12-21T22:44:51ZengIEEEIEEE Access2169-35362018-01-016241482415610.1109/ACCESS.2018.28252198334535A Fault Diagnosis Method for On Load Tap Changer of Aerospace Power Grid Based on the Current DetectionZhenhua Li0Qiuhui Li1Zhengtian Wu2https://orcid.org/0000-0001-7702-5730Jie Yu3Ronghao Zheng4College of Electrical Engineering and New Energy, China Three Gorges University, Yichang, ChinaCollege of Electrical Engineering and New Energy, China Three Gorges University, Yichang, ChinaSchool of Electronic and Information Engineering, Suzhou University of Science and Technology, Suzhou, ChinaCollege of Electrical Engineering and New Energy, China Three Gorges University, Yichang, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou, ChinaAs one of the key components of aerospace power grid, the performance of on load tap changer (OLTC) of power transformer is very important. So it is necessary to realize real-time monitoring of its status. At present, there is no feasible monitoring scheme to carry out on-line monitoring and fault diagnosis for detecting faults of OLTC. The current waveform of the switching process will be abnormal due to the contact fault, the transition resistance fault, and most of the mechanical faults. This paper presents a fault diagnosis method for OLTC based on the current detection in the process of switching. Through on-line acquisition of current waveform in the switching process, empirical mode decomposition and Hilbert-Huang transform is used to calculate normalized time-frequency spectrum, and extract fault characteristic quantity, which can realize the comprehensive diagnosis of the running state of the equipment, and identify the early fault characteristics, and promote the process of the OLTC's maintenance, from regular test to condition based maintenance. Experiment results prove that the designed fault diagnosis instrument can effectively monitor the working condition of OLTC during the switching process and make effective fault diagnosis.https://ieeexplore.ieee.org/document/8334535/On load tap changerfault diagnosisEMD-HHTsquare Rogowski coilcurrent of switching process |
| spellingShingle | Zhenhua Li Qiuhui Li Zhengtian Wu Jie Yu Ronghao Zheng A Fault Diagnosis Method for On Load Tap Changer of Aerospace Power Grid Based on the Current Detection IEEE Access On load tap changer fault diagnosis EMD-HHT square Rogowski coil current of switching process |
| title | A Fault Diagnosis Method for On Load Tap Changer of Aerospace Power Grid Based on the Current Detection |
| title_full | A Fault Diagnosis Method for On Load Tap Changer of Aerospace Power Grid Based on the Current Detection |
| title_fullStr | A Fault Diagnosis Method for On Load Tap Changer of Aerospace Power Grid Based on the Current Detection |
| title_full_unstemmed | A Fault Diagnosis Method for On Load Tap Changer of Aerospace Power Grid Based on the Current Detection |
| title_short | A Fault Diagnosis Method for On Load Tap Changer of Aerospace Power Grid Based on the Current Detection |
| title_sort | fault diagnosis method for on load tap changer of aerospace power grid based on the current detection |
| topic | On load tap changer fault diagnosis EMD-HHT square Rogowski coil current of switching process |
| url | https://ieeexplore.ieee.org/document/8334535/ |
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