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A Switching Method for Improving Lifetime of DC-Link Capacitors in Hybrid ANPC Inverters
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Publication Year
2019-11-01
Journal
2019 IEEE Student Conference on Electric Machines and Systems, SCEMS 2019
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
2019 IEEE Student Conference on Electric Machines and Systems, SCEMS 2019
Keyword
current rippleDC-link capacitorhybrid active neutral-point-clampedreliabilityswitching strategy
Mesh Keyword
Active neutral point clampedCurrent ripplesDc link capacitorDc link currentsSpace vector pulse width modulationSwitching methodsSwitching sequenceSwitching strategies
All Science Classification Codes (ASJC)
Energy Engineering and Power TechnologyElectrical and Electronic EngineeringMechanical Engineering
Abstract
This paper presents a switching strategy for improving lifetime of DC-link capacitors in photovoltaic (PV) hybrid active neutral-point-clamped (ANPC) inverters. The DC-link capacitor current ripples should be reduced, because the high current ripples of the capacitors cause high thermal stress and short lifetime of the capacitors. To reduce the DC-link current ripples, the switching sequence of the conventional space vector pulse width modulation (SVPWM) method is replaced with the proposed switching sequence. By applying the proposed method, the DC-link current ripples are reduced substantially. The effectiveness of the proposed method was verified by simulation results.
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/36474
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85079328714&origin=inward
DOI
https://doi.org/10.1109/scems201947376.2019.8972630
Journal URL
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=8962265
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. 20171210201100, No.20182410105160).
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Lee, Kyo-Beum이교범
Department of Electrical and Computer Engineering
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