A Fast and Simple Fault Diagnosis Method for Interleaved DC-DC Converters Based on Output Voltage Analysis
Interleaved DC-DC converters have been widely used in power conversion due to their high efficiency and reliability. In the application of new energy, this plays an increasingly important role in the grid-connected power generation of wind, solar, and tidal energy. Therefore, it is crucial to ensure...
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doaj-f95978696575471ea2b1eefdbdb2ed902021-07-01T00:25:55ZengMDPI AGElectronics2079-92922021-06-01101451145110.3390/electronics10121451A Fast and Simple Fault Diagnosis Method for Interleaved DC-DC Converters Based on Output Voltage AnalysisPo Li0Xiang Li1Tao Zeng2Department of Instrumental and Electrical Engineering, School of Aerospace Engineering, Xiamen University, Xiamen 361102, ChinaDepartment of Instrumental and Electrical Engineering, School of Aerospace Engineering, Xiamen University, Xiamen 361102, ChinaDepartment of Instrumental and Electrical Engineering, School of Aerospace Engineering, Xiamen University, Xiamen 361102, ChinaInterleaved DC-DC converters have been widely used in power conversion due to their high efficiency and reliability. In the application of new energy, this plays an increasingly important role in the grid-connected power generation of wind, solar, and tidal energy. Therefore, it is crucial to ensure the reliability and proper operation of interleaved DC-DC converters. We studied an open circuit fault (OCF) diagnosis method for a three-phase interleaved buck converter. We propose a non-invasive diagnosis method based on the output voltage using the harmonic amplitude and phase at the switching frequency as the diagnostic criteria. Evaluation was carried out on a hardware-in-the-loop (HIL) test platform to prove the validity of the proposed method. The results show that the presented method had high accuracy and robustness against OCFs, which could otherwise damage the system.https://www.mdpi.com/2079-9292/10/12/1451fault diagnosisinterleaved DC-DC converteroutput voltage |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Po Li Xiang Li Tao Zeng |
spellingShingle |
Po Li Xiang Li Tao Zeng A Fast and Simple Fault Diagnosis Method for Interleaved DC-DC Converters Based on Output Voltage Analysis Electronics fault diagnosis interleaved DC-DC converter output voltage |
author_facet |
Po Li Xiang Li Tao Zeng |
author_sort |
Po Li |
title |
A Fast and Simple Fault Diagnosis Method for Interleaved DC-DC Converters Based on Output Voltage Analysis |
title_short |
A Fast and Simple Fault Diagnosis Method for Interleaved DC-DC Converters Based on Output Voltage Analysis |
title_full |
A Fast and Simple Fault Diagnosis Method for Interleaved DC-DC Converters Based on Output Voltage Analysis |
title_fullStr |
A Fast and Simple Fault Diagnosis Method for Interleaved DC-DC Converters Based on Output Voltage Analysis |
title_full_unstemmed |
A Fast and Simple Fault Diagnosis Method for Interleaved DC-DC Converters Based on Output Voltage Analysis |
title_sort |
fast and simple fault diagnosis method for interleaved dc-dc converters based on output voltage analysis |
publisher |
MDPI AG |
series |
Electronics |
issn |
2079-9292 |
publishDate |
2021-06-01 |
description |
Interleaved DC-DC converters have been widely used in power conversion due to their high efficiency and reliability. In the application of new energy, this plays an increasingly important role in the grid-connected power generation of wind, solar, and tidal energy. Therefore, it is crucial to ensure the reliability and proper operation of interleaved DC-DC converters. We studied an open circuit fault (OCF) diagnosis method for a three-phase interleaved buck converter. We propose a non-invasive diagnosis method based on the output voltage using the harmonic amplitude and phase at the switching frequency as the diagnostic criteria. Evaluation was carried out on a hardware-in-the-loop (HIL) test platform to prove the validity of the proposed method. The results show that the presented method had high accuracy and robustness against OCFs, which could otherwise damage the system. |
topic |
fault diagnosis interleaved DC-DC converter output voltage |
url |
https://www.mdpi.com/2079-9292/10/12/1451 |
work_keys_str_mv |
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1721348690388451328 |