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논문 기본 정보

자료유형
학술저널
저자정보
Nithin Raj (National Institute of Technology) Jagadanand G (National Institute of Technology) Saly George (National Institute of Technology)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.16 No.6
발행연도
2016.11
수록면
2,067 - 2,075 (9page)

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초록· 키워드

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Cascaded H-bridge multilevel inverters are currently used because it enables the integration of various sources, such as batteries, ultracapacitors, photovoltaic array and fuel cells in a single system. Conventional modulation schemes for multilevel inverters have concentrated mainly on the generation of a low harmonic output voltage, which results in less effective utilization of connected sources. Less effective utilization leads to a difference in the charging/discharging of sources, causing unsteady voltages over a long period of operation and a reduction in the lifetime of the sources. Hence, a charge balance control scheme has to be incorporated along with the modulation scheme to overcome these issues. In this paper, a new approach for charge balancing in symmetric cascaded H-bridge multilevel inverter that enables almost 100% charge balancing of sources is presented. The proposed method achieves charge balancing without any additional stages or complex circuit or considerable computational requirement. The validity of the proposed method is verified through simulation and experiments.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. CHB-MLI TOPOLOGY AND MODULATION SCHEME
Ⅲ. CHARGE BALANCING SCHEMES
Ⅳ. SIMULATION AND EXPERIMENTAL RESULTS
Ⅴ. DISCUSSION
Ⅵ. CONCLUSIONS
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UCI(KEPA) : I410-ECN-0101-2017-560-001586014