Sze Sing Lee, Chee Shen Lim, Yam P. Siwakoti, and Kyo-Beum Lee, "Hybrid 7-Level Boost Active-Neutral-Point-Clamped (H-7L-BANPC) Inverter," IEEE Transactions on Circuits and Systems II, vol. 67, no. 10, pp. 2044–2048, Oct. 2020. -SCI > Paper

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Paper

International Journals Sze Sing Lee, Chee Shen Lim, Yam P. Siwakoti, and Kyo-Beum Lee, "Hybrid 7-Level Boost Active-Neutral-Point-Clamped (H-7L-BANPC) Inverter," IEEE Transactions on Circuits and Systems II, vol. 67, no. 10, pp. 2044–2048, Oct. 2020. -SCI

2020

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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 17; 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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