Hybrid 7-Level Boost Active-Neutral-Point- Clamped (H-7L-BANPC) Inverter
In: IEEE Transactions on Circuits and Systems II: Express Briefs, Jg. 67 (2020-10-01), S. 2044-2048
Online
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Zugriff:
The emerging active-neutral-point-clamped (ANPC) inverters with voltage-boosting capability are attractive for their low dc-link voltage requirement. These low voltage requirements enable a single-stage dc-ac power conversion, which improves the overall efficiency, reliability, and power density of the system. A high voltage gain of 1.5 was demonstrated in recent boost type ANPC topology; however, it was achieved at the expense of high voltage stress on some of its switching devices. This brief proposes an improved topology with reduced voltage stress and a lower number of components while retaining the merits of high voltage gain. The proposed topology is a hybrid of a T-type inverter and an H-bridge, which require only one floating capacitor and one less power switch than the aforementioned topology. One floating capacitor with self-voltage balancing capability is integrated to generate 7 output voltage levels. The proposed topology is analyzed and compared with recent boost ANPC topologies. Experimental results are presented for validation.
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Hybrid 7-Level Boost Active-Neutral-Point- Clamped (H-7L-BANPC) Inverter
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Autor/in / Beteiligte Person: | Sze Sing Lee ; Siwakoti, Yam P. ; Lee, Kyo-Beum ; Chee Shen Lim |
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Zeitschrift: | IEEE Transactions on Circuits and Systems II: Express Briefs, Jg. 67 (2020-10-01), S. 2044-2048 |
Veröffentlichung: | Institute of Electrical and Electronics Engineers (IEEE), 2020 |
Medientyp: | unknown |
ISSN: | 1558-3791 (print) ; 1549-7747 (print) |
DOI: | 10.1109/tcsii.2019.2946860 |
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