Multi-objective design of output LC filter for buck converter via the coevolving-AMOSA algorithm
Output LC filter is one of the most important parts for Buck converters. The existing optimization methods for LC filter fail to provide a fully optimized design. The difficulty in a holistic design approach lies in the trade-off relationships among different design targets. For example, smaller vol...
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sg-ntu-dr.10356-1466092021-03-03T02:19:53Z Multi-objective design of output LC filter for buck converter via the coevolving-AMOSA algorithm Li, Xinze Zhang, Xin Lin, Fanfan School of Electrical and Electronic Engineering Energy Research Institute @ NTU (ERI@N) Engineering::Electrical and electronic engineering Output LC Filter Multi-objective Design Output LC filter is one of the most important parts for Buck converters. The existing optimization methods for LC filter fail to provide a fully optimized design. The difficulty in a holistic design approach lies in the trade-off relationships among different design targets. For example, smaller volume results in worse filtering capability and lower efficiency. To improve the overall performance of the output LC filter in Buck converter, a multi-objective design is proposed, taking the power loss, cut-off frequency and volume as design targets. This proposed holistic design approach utilizes Pareto-Frontier to achieve a compact LC filter with optimized efficiency and filtering capability. However, Pareto-Frontier generated by the previous multi-objective algorithms suffers from nonuniform or incomplete coverage, which seriously undermines design accuracy. Thus, the coevolving-AMOSA algorithm is proposed to provide a Pareto-Frontier with uniform and complete coverage. Via this proposed multi-objective design for the output LC filter in Buck converter with the coevolving-AMOSA algorithm, output LC filter can be flexibly designed to meet requirements in various applications while maintaining outstanding comprehensive performance. Optimal design cases for three specific application scenarios are presented as examples. Finally, the experimental results validate the effectiveness of the proposed multi-objective approach. Published version 2021-03-03T02:19:53Z 2021-03-03T02:19:53Z 2020 Journal Article Li, X., Zhang, X., & Lin, F. (2021). Multi-objective design of output LC filter for buck converter via the coevolving-AMOSA algorithm. IEEE Access, 9, 11884-11894. doi:10.1109/ACCESS.2020.3034361 2169-3536 0000-0003-3513-209X 0000-0002-4968-2722 0000-0002-5562-2478 https://hdl.handle.net/10356/146609 10.1109/ACCESS.2020.3034361 2-s2.0-85100069146 9 11884 11894 en IEEE Access © 2021 IEEE. This journal is 100% open access, which means that all content is freely available without charge to users or their institutions. All articles accepted after 12 June 2019 are published under a CC BY 4.0 license, and the author retains copyright. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, as long as proper attribution is given. application/pdf |
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Engineering::Electrical and electronic engineering Output LC Filter Multi-objective Design Li, Xinze Zhang, Xin Lin, Fanfan Multi-objective design of output LC filter for buck converter via the coevolving-AMOSA algorithm |
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Output LC filter is one of the most important parts for Buck converters. The existing optimization methods for LC filter fail to provide a fully optimized design. The difficulty in a holistic design approach lies in the trade-off relationships among different design targets. For example, smaller volume results in worse filtering capability and lower efficiency. To improve the overall performance of the output LC filter in Buck converter, a multi-objective design is proposed, taking the power loss, cut-off frequency and volume as design targets. This proposed holistic design approach utilizes Pareto-Frontier to achieve a compact LC filter with optimized efficiency and filtering capability. However, Pareto-Frontier generated by the previous multi-objective algorithms suffers from nonuniform or incomplete coverage, which seriously undermines design accuracy. Thus, the coevolving-AMOSA algorithm is proposed to provide a Pareto-Frontier with uniform and complete coverage. Via this proposed multi-objective design for the output LC filter in Buck converter with the coevolving-AMOSA algorithm, output LC filter can be flexibly designed to meet requirements in various applications while maintaining outstanding comprehensive performance. Optimal design cases for three specific application scenarios are presented as examples. Finally, the experimental results validate the effectiveness of the proposed multi-objective approach. |
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School of Electrical and Electronic Engineering |
author_facet |
School of Electrical and Electronic Engineering Li, Xinze Zhang, Xin Lin, Fanfan |
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Article |
author |
Li, Xinze Zhang, Xin Lin, Fanfan |
author_sort |
Li, Xinze |
title |
Multi-objective design of output LC filter for buck converter via the coevolving-AMOSA algorithm |
title_short |
Multi-objective design of output LC filter for buck converter via the coevolving-AMOSA algorithm |
title_full |
Multi-objective design of output LC filter for buck converter via the coevolving-AMOSA algorithm |
title_fullStr |
Multi-objective design of output LC filter for buck converter via the coevolving-AMOSA algorithm |
title_full_unstemmed |
Multi-objective design of output LC filter for buck converter via the coevolving-AMOSA algorithm |
title_sort |
multi-objective design of output lc filter for buck converter via the coevolving-amosa algorithm |
publishDate |
2021 |
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https://hdl.handle.net/10356/146609 |
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1695706148215193600 |