Magnetic integration of LTL filter with two LC-traps for grid-connected power converters

High-order inductor-traps-inductor (LTL) filters recently attracted a lot of research attentions in grid-connected converter applications due to their excellent harmonic attenuation ability, low cost, volume, and weight. However, more magnetic cores for trap inductors are required compared to conven...

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Main Authors: Li, Xiaoqiang, Lin, Pengfeng, Tang, Yi
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/138865
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1388652020-05-13T07:17:10Z Magnetic integration of LTL filter with two LC-traps for grid-connected power converters Li, Xiaoqiang Lin, Pengfeng Tang, Yi School of Electrical and Electronic Engineering Interdisciplinary Graduate School (IGS) Engineering::Electrical and electronic engineering Grid-connected Converter Magnetic Cores High-order inductor-traps-inductor (LTL) filters recently attracted a lot of research attentions in grid-connected converter applications due to their excellent harmonic attenuation ability, low cost, volume, and weight. However, more magnetic cores for trap inductors are required compared to conventional inductor-capacitor-inductor (LCL) filters. In order to further reduce the volume and weight of output power filter, this paper proposes a magnetic integrated LTL filter with two LC-traps. On the basis of conventional integrated LCL filters, the proposed method introduces a coupling winding wound on the central-limb of an EE-type magnetic core, and two equivalent trap inductors are introduced by the magnetic coupling between different windings. A step-by-step design guideline of the proposed magnetic integration method and the parameters design of LTL filters are also presented. The feasibility and effectiveness of the proposed method are finally verified by the experimental results. Accepted version 2020-05-13T07:17:10Z 2020-05-13T07:17:10Z 2018 Journal Article Li, X., Lin, P., & Tang, Y. (2018). Magnetic integration of LTL filter with two LC-traps for grid-connected power converters. IEEE Journal of Emerging and Selected Topics in Power Electronics, 6(3), 1434-1446. doi:10.1109/JESTPE.2017.2764060 2168-6777 https://hdl.handle.net/10356/138865 10.1109/JESTPE.2017.2764060 2-s2.0-85032291246 3 6 1434 1446 en IEEE Journal of Emerging and Selected Topics in Power Electronics © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/JESTPE.2017.2764060]. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Grid-connected Converter
Magnetic Cores
spellingShingle Engineering::Electrical and electronic engineering
Grid-connected Converter
Magnetic Cores
Li, Xiaoqiang
Lin, Pengfeng
Tang, Yi
Magnetic integration of LTL filter with two LC-traps for grid-connected power converters
description High-order inductor-traps-inductor (LTL) filters recently attracted a lot of research attentions in grid-connected converter applications due to their excellent harmonic attenuation ability, low cost, volume, and weight. However, more magnetic cores for trap inductors are required compared to conventional inductor-capacitor-inductor (LCL) filters. In order to further reduce the volume and weight of output power filter, this paper proposes a magnetic integrated LTL filter with two LC-traps. On the basis of conventional integrated LCL filters, the proposed method introduces a coupling winding wound on the central-limb of an EE-type magnetic core, and two equivalent trap inductors are introduced by the magnetic coupling between different windings. A step-by-step design guideline of the proposed magnetic integration method and the parameters design of LTL filters are also presented. The feasibility and effectiveness of the proposed method are finally verified by the experimental results.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Li, Xiaoqiang
Lin, Pengfeng
Tang, Yi
format Article
author Li, Xiaoqiang
Lin, Pengfeng
Tang, Yi
author_sort Li, Xiaoqiang
title Magnetic integration of LTL filter with two LC-traps for grid-connected power converters
title_short Magnetic integration of LTL filter with two LC-traps for grid-connected power converters
title_full Magnetic integration of LTL filter with two LC-traps for grid-connected power converters
title_fullStr Magnetic integration of LTL filter with two LC-traps for grid-connected power converters
title_full_unstemmed Magnetic integration of LTL filter with two LC-traps for grid-connected power converters
title_sort magnetic integration of ltl filter with two lc-traps for grid-connected power converters
publishDate 2020
url https://hdl.handle.net/10356/138865
_version_ 1681057397087404032