TY - GEN
T1 - Single-Switch Non-Isolated Buck-Boost DC-DC Converter with Wide Voltage Conversion Ratio
AU - Fernão Pires, V.
AU - Foito, Daniel
AU - Cordeiro, Armando
AU - Pereira, Pedro
AU - Roncero-Clemente, Carlos
AU - Martins, João
N1 - Funding Information:
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50021%2F2020/PT#
info:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Base/UIDB%2F00066%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00066%2F2020/PT#
Publisher Copyright:
Copyright © 2024 by IEEE.
PY - 2024
Y1 - 2024
N2 - DC-DC converters play a crucial role in providing power conversion for the integration of renewable energy sources into the electric power grid or as standalone power sources. However, achieving proper integration of applications like photovoltaic generators often requires DC-DC converters with an enhanced voltage range due to conditions such as PV shadowing. This is a feature that is lacking in standard DC-DC converters. Addressing this need, this paper presents a novel transformerless buck-boost converter with a wide conversion voltage ratio. The proposed converter has only one active switch, simplifying the gate driver and control system implementation. The wide conversion voltage ratio is ensured by its quadratic voltage gain. Operates in both step-up and step-down modes, unlike most existing quadratic topologies, which are limited to either step-up or step-down operation, and shares a common ground between the input and output terminals. The operational modes of the proposed converter and its steady-state performance are thoroughly analyzed. Simulation and experimental tests were conducted to evaluate its performance.
AB - DC-DC converters play a crucial role in providing power conversion for the integration of renewable energy sources into the electric power grid or as standalone power sources. However, achieving proper integration of applications like photovoltaic generators often requires DC-DC converters with an enhanced voltage range due to conditions such as PV shadowing. This is a feature that is lacking in standard DC-DC converters. Addressing this need, this paper presents a novel transformerless buck-boost converter with a wide conversion voltage ratio. The proposed converter has only one active switch, simplifying the gate driver and control system implementation. The wide conversion voltage ratio is ensured by its quadratic voltage gain. Operates in both step-up and step-down modes, unlike most existing quadratic topologies, which are limited to either step-up or step-down operation, and shares a common ground between the input and output terminals. The operational modes of the proposed converter and its steady-state performance are thoroughly analyzed. Simulation and experimental tests were conducted to evaluate its performance.
KW - Buck-Boost
KW - DC-DC converter
KW - Non-isolated
KW - Photovoltaic applications
KW - Quadratic voltage gain
UR - http://www.scopus.com/inward/record.url?scp=105001029839&partnerID=8YFLogxK
U2 - 10.1109/IECON55916.2024.10905535
DO - 10.1109/IECON55916.2024.10905535
M3 - Conference contribution
AN - SCOPUS:105001029839
SN - 9781665464550
T3 - IECON Proceedings (Industrial Electronics Conference)
BT - IECON 2024
PB - IEEE Computer Society Press
CY - Chicago
T2 - 50th Annual Conference of the IEEE Industrial Electronics Society, IECON 2024
Y2 - 3 November 2024 through 6 November 2024
ER -
