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Fault Diagnosis and Tolerance for Open-circuit Faults in Multi-Level Inverters
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Publication Year
2022-01-01
Journal
2022 International Power Electronics Conference, IPEC-Himeji 2022-ECCE Asia
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
2022 International Power Electronics Conference, IPEC-Himeji 2022-ECCE Asia, pp.849-853
Keyword
Active neutral point clamped invertersFault detectionMulti-level invertersOpen circuit faults
Mesh Keyword
Active neutral point clampedActive neutral point clamped inverterCreativesFault diagnosis and tolerancesFaults detectionFaulty conditionMulti-level inverterMultilevelsNeutral-point clamped invertersOpen-circuit fault
All Science Classification Codes (ASJC)
Energy Engineering and Power TechnologyRenewable Energy, Sustainability and the EnvironmentElectrical and Electronic EngineeringSafety, Risk, Reliability and QualityControl and Optimization
Abstract
This paper presents a creative method for detecting and tolerating open circuit faults in a three-level hybrid active neutral point clamped (HANPC) converter. The faults have direct effects on the output voltages and currents of the three-phase system. Therefore, the early detection and tolerance would enhance the system's reliability and stability. The detection method mainly depends on calculating the current distortion that is resulting from the fault effects on the system. Meanwhile, the fault tolerance depends on creating new voltage references and inserting new switching sequences under faulty conditions. As a result, the system is capable to identify the fault location and recover the healthy (normal) performance under the faulty conditions. The proposed method is verified in the simulation results.
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/36854
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85134247950&origin=inward
DOI
https://doi.org/10.23919/ipec-himeji2022-ecce53331.2022.9807034
Journal URL
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=9806820
Type
Conference
Funding
This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20206910100160).
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Lee, Kyo-Beum이교범
Department of Electrical and Computer Engineering
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