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Title: Magnetic integration of LTL filter with two LC-traps for grid-connected power converters
Authors: Li, Xiaoqiang
Lin, Pengfeng
Tang, Yi
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2018
Source: 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
Journal: IEEE Journal of Emerging and Selected Topics in Power Electronics
Abstract: 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.
ISSN: 2168-6777
DOI: 10.1109/JESTPE.2017.2764060
Rights: © 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:].
Fulltext Permission: open
Fulltext Availability: With Fulltext
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