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Robust Open Circuit Fault Tolerance for Five-Level HANPC Inverters Using an Improved SV-PWM Modulation
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Publication Year
2022-01-01
Journal
2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Keyword
fault toleranceHANPCmultilevel invertersSV-PWM modulation
Mesh Keyword
High impactHybrid active natural point clamped converterMultilevel inverterMultilevelsNormal operationsOpen-circuit faultPower conversion systemsSV-PWM modulationSwitching levelsSystems operation
All Science Classification Codes (ASJC)
Electrical and Electronic EngineeringMechanical EngineeringSafety, Risk, Reliability and QualityEnergy Engineering and Power TechnologyRenewable Energy, Sustainability and the EnvironmentControl and Optimization
Abstract
In power conversion systems, open circuit faults could occur at any stage of the system operation. Mainly the faults occurring at the switching level have higher impact on the system. In this regard, this paper proposed a robust open circuit fault tolerance method that is able to recover the normal operation over the different cases of the open circuit faults in fife-level hybrid active natural point clamped converters (HANPC). The proposed method operates by modifying the original voltage references in order to eliminates the fault effects besides generating new switching sequences for all cases of the open circuit faults. Meanwhile, the proposed method does not require the insertion of any extra hardware or changes to the basic topology of the inverter. Correspondingly, the proposed method is explained and clarified in detail and result in reobtaining normal operation for all faulty cases safely and adequately. In addition to balancing the DC link voltage without any special requirements to withstand under high voltage levels. The proposed method is verified by simulation results.
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/36799
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85144038797&origin=inward
DOI
https://doi.org/10.1109/ecce50734.2022.9947458
Journal URL
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=9947299
Type
Conference
Funding
ACKNOWLEDGMENT 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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