Equivalent Two Switches and Single Switch Buck/Buck-Boost Circuits for Solar Energy Harvesting Systems

Ehsan Jamshidpour, Slavisa Jovanovic and Philippe Poure
Additional contact information
Ehsan Jamshidpour: ECAM Strasbourg Europe-ICube Laboratory (UMR7357), F-67400 Illkirch-Graffenstaden, France
Slavisa Jovanovic: Institut Jean Lamour (UMR7198), Université de Lorraine, 54011 Nancy, France
Philippe Poure: Institut Jean Lamour (UMR7198), Université de Lorraine, 54011 Nancy, France

Energies, 2020, vol. 13, issue 3, 1-16

Abstract: In this paper, a comparative analysis has been presented of two equivalent circuits of non-isolated buck/buck-boost converters under synchronous control, used in a stand-alone Photovoltaic-battery-load system. The first circuit consists of two cascaded buck and buck-boost classical converters with two controllable switches. The buck converter is used to extract the maximum power of the Photovoltaic source, and the buck-boost converter is applied for the output voltage level control. The second circuit consists of a proposed converter with a single controllable switch. In both cases, the switching frequency is used to track the maximum power point and the duty ratio controls the output voltage level. Selected simulation results and experimental tests confirm that the two conversion circuits have identical behavior under synchronous control. This study shows that the single switch converter has a lower size and cost, but it is limited in the possible control strategy.

Keywords: solar PV; energy harvesting system; two-stage DC-DC electronic conversion; switch number reduction; synchronous switch; equivalent single switch circuit; buck/buck-boost circuit (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 references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/3/583/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/3/583/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:3:p:583-:d:313448

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().