A novel optimized LCL-filter designing method for grid connected converter

Zeng Guohong, Tonny Wederberg Rasmussen, Remus Teodorescu

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    This paper presents a new LCL-filters optimized designing method for grid connected voltage source converter. This method is based on the analysis of converter output voltage components and inherent relations among LCL-filter parameters. By introducing an optimizing index of equivalent total capacity of all filter components, with clear physical meaning of minimum cost and volume, a set of optimal values of attenuation ratio and inductancesplit- ratio is obtained for deciding all LCL-filter parameters. With this method, filter overall capacity can be minimized while the grid limit of switching frequency distortion is fulfilled. Compared to the existing methods, the proposed method contains only four steps without try-and-error process, so it is efficient and easy to implement. Simulation results of a 50kVA grid-connected inverter with two sets of LCL-filter parameters under different optimizing condition are presented to verify the reasonability and feasibility of the method.
    Original languageEnglish
    Title of host publicationIEEE PEDG 2010
    PublisherIEEE Computer Society Press
    Publication date2010
    Pages802-805
    ISBN (Print)9781424456703
    DOIs
    Publication statusPublished - 2010
    Event2nd International Symposium on Power Electronics for Distributed Generation Systems - Hefei, China
    Duration: 16 Jun 201018 Jun 2010
    Conference number: 2
    http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5534525

    Conference

    Conference2nd International Symposium on Power Electronics for Distributed Generation Systems
    Number2
    Country/TerritoryChina
    CityHefei
    Period16/06/201018/06/2010
    Internet address

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