Cost-Volume-reliability pareto optimization of a photovoltaic microinverter

Yanfeng Shen, Sungyoung Song, Huai Wang, Frede Blaabjerg

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    10 Scopus citations

    Abstract

    A multiobjective Pareto optimization routine is pro-posed to systematically assess the performance factors concerning annual degradation, volume, and cost. As an essential performance criterion of PV microinverters, the reliability is included in the multiobjective optimization, which has not been seen in the previous literature. Thus, a practical trade-off among annual degradation, volume and cost can be made for a two-stage PV microinverter. Firstly, the operation principle of the inverter stage in the boundary conduction mode (BCM) is analyzed for electrical aspect modeling. Then, a system-level electro-thermal model is built for the PV microinverter. After that, critical performance metrics, i.e., reliability, cost, and volume, are modeled before a multiobjective Pareto optimization strategy is proposed and executed. The proposed optimization method leads to a remarkable reliability improvement while maintaining low cost and volume.

    Original languageBritish English
    Title of host publication34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages139-146
    Number of pages8
    ISBN (Electronic)9781538683309
    DOIs
    StatePublished - 24 May 2019
    Event34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States
    Duration: 17 Mar 201921 Mar 2019

    Publication series

    NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
    Volume2019-March

    Conference

    Conference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
    Country/TerritoryUnited States
    CityAnaheim
    Period17/03/1921/03/19

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