Novel Integrated Zeta Inverter for Standalone Applications

Anderson Aparecido Dionizio, Guilherme Masquetti Pelz, Leonardo Poltronieri Sampaio () and Sérgio Augusto Oliveira da Silva
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Anderson Aparecido Dionizio: Electrical Engineering Department, Federal University of Technology–Paraná, Cornélio Procópio 86300-000, PR, Brazil
Guilherme Masquetti Pelz: Electrical Engineering Department, Federal University of Technology–Paraná, Cornélio Procópio 86300-000, PR, Brazil
Leonardo Poltronieri Sampaio: Electrical Engineering Department, Federal University of Technology–Paraná, Cornélio Procópio 86300-000, PR, Brazil
Sérgio Augusto Oliveira da Silva: Electrical Engineering Department, Federal University of Technology–Paraná, Cornélio Procópio 86300-000, PR, Brazil

Energies, 2024, vol. 17, issue 11, 1-15

Abstract: In recent years, distributed generation systems based on renewable energy sources have gained increasing prominence. Thus, the DC/AC converters based on power electronics devices have become increasingly important. In this context, this article presents an integrated Zeta inverter for low-power conditions, which operates in continuous conduction mode (CCM), achieving efficiency greater than 95%. The proposed topology is composed of four power switches, two operating at high frequency and two operating at low frequency, i.e., at the output frequency. Compared with the topologies in the literature, these configurations make it a competitive solution from the point of view of efficiency, number of elements, and, consequently, implementation cost. The proposed converter operates as a sinusoidal voltage source for local loads and is supplied by a DC source, such as batteries or a photovoltaic array. A multi-resonant voltage controller was used to guarantee the sinusoidal voltage provided to the non-linear load while dealing with the complex dynamics of the Zeta converter in the CCM. Experimental results from a 324 W prototype show the converter’s implementation feasibility and the high efficiency of the DC/AC conversion.

Keywords: DC/AC conversion; integrated inverter; power electronics; Zeta inverter (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: 2024
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