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| ■論文No. |
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| ■ページ数 |
14ページ |
■発行日
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2024/09/01 |
| ■タイトル |
Novel Voltage Balance Strategy for a Cascade H-Bridge with a Wide Stable Operating Region and a Low Input Current THD |
| ■タイトル(英語) |
Novel Voltage Balance Strategy for a Cascade H-Bridge with a Wide Stable Operating Region and a Low Input Current THD |
| ■著者名 |
Zhaoyang Jin (Graduate School of Advanced Science and Engineering, Waseda University), Keiichiro Kondo (Graduate School of Advanced Science and Engineering, Waseda University) |
| ■著者名(英語) |
Zhaoyang Jin (Graduate School of Advanced Science and Engineering, Waseda University), Keiichiro Kondo (Graduate School of Advanced Science and Engineering, Waseda University) |
| ■価格 |
会員 ¥550 一般 ¥770 |
| ■書籍種類 |
論文誌(論文単位) |
| ■グループ名 |
【D】産業応用部門（英文） |
| ■本誌 |
IEEJ Journal of Industry Applications Vol.13 No.5 （2024）
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| ■本誌掲載ページ |
547-560ページ |
| ■原稿種別 |
論文／英語 |
| ■電子版へのリンク |
https://www.jstage.jst.go.jp/article/ieejjia/13/5/13_23013867/_article/-char/ja/
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| ■キーワード |
multilevel converter，cascade H-bridge，voltage balance，AC-DC converter |
| ■要約(日本語) |
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| ■要約(英語) |
Cascade H-bridge (CHB) converters show promising potential across various applications, such as power electronic transformers and static synchronous compensator, because of their advantages such as modularity and the ability to generate multilevel output voltage. However, the DC-link voltage of each CHB module needs to be controlled individually. Imbalanced voltage is, therefore, a serious problem for the stable operation of CHB. In this study, we developed a hybrid modulation strategy for a single-phase CHB rectifier (CHBR) in a power electronic transformer used in the traction industry. In the proposed average voltage selected (AVS) method, the average DC-link voltage value is calculated. All modules whose DC-link voltage is lower than the average are charged, and all modules whose voltage is higher than average are discharged. Furthermore, a duty ratio saturation compensation is used. Compared with previous hybrid modulation strategy with a wide stable operation region, the AVS method can decrease the input current total harmonic distortion (THD) and DC-link voltage THD without sacrificing the stable operation region and switching loss. The effectiveness of the AVS method was verified by simulation and experiments. |
| ■版 型 |
A4 |
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