TY - GEN
T1 - Design of an Improved Gain Buck-Boost Converter for Photovoltaic Energy Harvesting Systems
AU - Mokogwu, Francis Nwose
AU - Hashmi, Mohammad
AU - Marzuki, Arjuna
AU - Ng, Annie
AU - Ukaegbu, Ikechi
N1 - Funding Information:
This work is supported by Science & Technical Projects (AP13068587 & AP08856931) funded by the Ministry of Education and Science of the Republic of Kazakhstan and Nazarbayev University (NU) Collaborative Research Grants (11022021CRP1507 and 021220CRP0422).
Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - This paper presents the design of a novel buck-boost converter that yields a high gain (voltage ratio) while maintaining its efficiency. The proposed topology is a two-switch buck-boost (TSBB) converter characterized by an improved gain in comparison to earlier designed conventional converters. This design is a combination of the single-ended primary-inductor converter (SEPIC) and the Cuk converter. This combination is achieved by reconfiguring the two existing diodes from both converters and sharing the SEPIC converter output inductor with the Cuk converter, thus harnessing the best properties of both converters. The gate switches are driven by synchronous gate drive pulse-width modulated signals. It also guarantees continuous input and output currents, making them suitable for high precision applications of renewable sources such as photovoltaic energy systems. Consequently, a simulation was performed to verify computational and design compatibility, yielding the desired result which is to step up an input voltage of 10 V to 12 V in boost mode at a duty cycle of 0.35 and step down an input voltage of 18 V to 12 V at the output during the buck mode at a duty cycle of 0.22.
AB - This paper presents the design of a novel buck-boost converter that yields a high gain (voltage ratio) while maintaining its efficiency. The proposed topology is a two-switch buck-boost (TSBB) converter characterized by an improved gain in comparison to earlier designed conventional converters. This design is a combination of the single-ended primary-inductor converter (SEPIC) and the Cuk converter. This combination is achieved by reconfiguring the two existing diodes from both converters and sharing the SEPIC converter output inductor with the Cuk converter, thus harnessing the best properties of both converters. The gate switches are driven by synchronous gate drive pulse-width modulated signals. It also guarantees continuous input and output currents, making them suitable for high precision applications of renewable sources such as photovoltaic energy systems. Consequently, a simulation was performed to verify computational and design compatibility, yielding the desired result which is to step up an input voltage of 10 V to 12 V in boost mode at a duty cycle of 0.35 and step down an input voltage of 18 V to 12 V at the output during the buck mode at a duty cycle of 0.22.
KW - Gain
KW - Photovoltaic
KW - SEPIC
KW - TSBB converter
KW - Ćuk converter
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U2 - 10.1109/PECon54459.2022.9988901
DO - 10.1109/PECon54459.2022.9988901
M3 - Conference contribution
AN - SCOPUS:85146424515
T3 - 2022 IEEE International Conference on Power and Energy: Advancement in Power and Energy Systems towards Sustainable and Resilient Energy Supply, PECon 2022
SP - 475
EP - 480
BT - 2022 IEEE International Conference on Power and Energy
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE International Conference on Power and Energy, PECon 2022
Y2 - 5 December 2022 through 6 December 2022
ER -