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

Ben Zhao, Alexander Abramovitz, Chang Liu, Yongheng Yang and Yigeng Huangfu
Additional contact information
Ben Zhao: School of Automation, Northwestern Polytechnical University, Xi’an 710072, China
Alexander Abramovitz: Department of Electrical Engineering, Holon Institute of Technology, Holon 58102, Israel
Chang Liu: School of Automation, Northwestern Polytechnical University, Xi’an 710072, China
Yongheng Yang: Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
Yigeng Huangfu: School of Automation, Northwestern Polytechnical University, Xi’an 710072, China

Energies, 2020, vol. 13, issue 7, 1-21

Abstract: 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.

Keywords: PV microinverters; converter topologies; single-stage; buck-boost; tapped inductor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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