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Open AccessArticle

A Family of Single-Stage, Buck-Boost Inverters for Photovoltaic Applications

1
School of Automation, Northwestern Polytechnical University, Xi’an 710072, China
2
Department of Electrical Engineering, Holon Institute of Technology, Holon 58102, Israel
3
Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
*
Author to whom correspondence should be addressed.
Energies 2020, 13(7), 1675; https://doi.org/10.3390/en13071675
Received: 5 February 2020 / Revised: 9 March 2020 / Accepted: 21 March 2020 / Published: 3 April 2020
This paper introduces a family of single-stage buck-boost DC/AC inverters for photovoltaic (PV) applications. The high-gain feature was attained by applying a multi-winding tapped inductor, and thus, the proposed topologies can generate a grid-level AC output voltage without using additional high step-up stages. The proposed topologies had a low component count and consisted of a single magnetic device and three or four power switches. Moreover, the switches were assembled in a push-pull or half/full-bridge arrangement, which allowed using commercial low-cost driver-integrated circuits. In this paper, the operation principle and comparison of the proposed topologies are presented. The feasibility of the proposed topologies was verified by simulations and experimental tests. View Full-Text
Keywords: PV microinverters; converter topologies; single-stage; buck-boost; tapped inductor PV microinverters; converter topologies; single-stage; buck-boost; tapped inductor
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MDPI and ACS Style

Zhao, B.; Abramovitz, A.; Liu, C.; Yang, Y.; Huangfu, Y. A Family of Single-Stage, Buck-Boost Inverters for Photovoltaic Applications. Energies 2020, 13, 1675.

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