Designing the optimal number of active branches in a multi-branch buck-boost converter
Introduction. Multi-branch buck-boost converters, widely used in energy conversion from alternative sources, offer significant advantages over single-branch configurations. Critical, however, is the question of the appropriate number of branches for optimal efficiency and the given output power of t...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
National Technical University "Kharkiv Polytechnic Institute"
2025-07-01
|
| Series: | Electrical engineering & Electromechanics |
| Subjects: | |
| Online Access: | http://eie.khpi.edu.ua/article/view/319288/322117 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849428447223349248 |
|---|---|
| author | I. Kovacova D. Kovac |
| author_facet | I. Kovacova D. Kovac |
| author_sort | I. Kovacova |
| collection | DOAJ |
| description | Introduction. Multi-branch buck-boost converters, widely used in energy conversion from alternative sources, offer significant advantages over single-branch configurations. Critical, however, is the question of the appropriate number of branches for optimal efficiency and the given output power of the converter. The novelty of the proposed work consists in the development of a precise method for determining the optimal number of branches in a multi-branch buck-boost converter for a specified output power. Additionally, the findings enable the development of adaptive control strategies that dynamically adjust the number of active branches based on the converter’s instantaneous power. This approach enhances the overall efficiency of the converter. Goal. The study aims to analyze the efficiency of multi-branch buck-boost converters, focusing on the optimal number of branches and the required output power. Methods. The problem was addressed through a theoretical analysis of the converter’s electrical equivalent circuit. The theoretical results were validated through practical measurements conducted on a prototype converter. Results. A detailed equivalent circuit for the converter was developed and analyzed for various operational modes. Based on this analysis, the converter’s losses were quantified, and a relationship was derived to determine the optimal number of parallel branches, taking into account the desired output power. Practical value. The findings provide guidelines for selecting the optimal number of branches in a multi-branch buck-boost converter based on the desired output power. Furthermore, they enable the implementation of adaptive switching strategies to maximize the converter’s efficiency. References 22, table 2, figures 20.
|
| format | Article |
| id | doaj-art-8564dab6c8674467bb9a5353d0d49ef6 |
| institution | Kabale University |
| issn | 2074-272X 2309-3404 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | National Technical University "Kharkiv Polytechnic Institute" |
| record_format | Article |
| series | Electrical engineering & Electromechanics |
| spelling | doaj-art-8564dab6c8674467bb9a5353d0d49ef62025-08-20T03:28:43ZengNational Technical University "Kharkiv Polytechnic Institute"Electrical engineering & Electromechanics2074-272X2309-34042025-07-0120254445210.20998/2074-272X.2025.4.06Designing the optimal number of active branches in a multi-branch buck-boost converterI. Kovacova0https://orcid.org/0000-0003-0482-6646D. Kovac1https://orcid.org/0000-0002-9930-9272Technical University of Kosice, SlovakiaTechnical University of Kosice, SlovakiaIntroduction. Multi-branch buck-boost converters, widely used in energy conversion from alternative sources, offer significant advantages over single-branch configurations. Critical, however, is the question of the appropriate number of branches for optimal efficiency and the given output power of the converter. The novelty of the proposed work consists in the development of a precise method for determining the optimal number of branches in a multi-branch buck-boost converter for a specified output power. Additionally, the findings enable the development of adaptive control strategies that dynamically adjust the number of active branches based on the converter’s instantaneous power. This approach enhances the overall efficiency of the converter. Goal. The study aims to analyze the efficiency of multi-branch buck-boost converters, focusing on the optimal number of branches and the required output power. Methods. The problem was addressed through a theoretical analysis of the converter’s electrical equivalent circuit. The theoretical results were validated through practical measurements conducted on a prototype converter. Results. A detailed equivalent circuit for the converter was developed and analyzed for various operational modes. Based on this analysis, the converter’s losses were quantified, and a relationship was derived to determine the optimal number of parallel branches, taking into account the desired output power. Practical value. The findings provide guidelines for selecting the optimal number of branches in a multi-branch buck-boost converter based on the desired output power. Furthermore, they enable the implementation of adaptive switching strategies to maximize the converter’s efficiency. References 22, table 2, figures 20. http://eie.khpi.edu.ua/article/view/319288/322117multi-branch buck-boost converterpower lossesefficiency |
| spellingShingle | I. Kovacova D. Kovac Designing the optimal number of active branches in a multi-branch buck-boost converter Electrical engineering & Electromechanics multi-branch buck-boost converter power losses efficiency |
| title | Designing the optimal number of active branches in a multi-branch buck-boost converter |
| title_full | Designing the optimal number of active branches in a multi-branch buck-boost converter |
| title_fullStr | Designing the optimal number of active branches in a multi-branch buck-boost converter |
| title_full_unstemmed | Designing the optimal number of active branches in a multi-branch buck-boost converter |
| title_short | Designing the optimal number of active branches in a multi-branch buck-boost converter |
| title_sort | designing the optimal number of active branches in a multi branch buck boost converter |
| topic | multi-branch buck-boost converter power losses efficiency |
| url | http://eie.khpi.edu.ua/article/view/319288/322117 |
| work_keys_str_mv | AT ikovacova designingtheoptimalnumberofactivebranchesinamultibranchbuckboostconverter AT dkovac designingtheoptimalnumberofactivebranchesinamultibranchbuckboostconverter |