Cost assessment of three power decoupling methods in a single-phase power converter with a reliability-oriented design procedure

Haoran Wang, Huai Wang, Guorong Zhu, Frede Blaabjerg

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

    13 Scopus citations

    Abstract

    Electrolytic Capacitors (E-Cap) as the passive energy buffer in single-phase converter are often assumed to be the reliability bottleneck of power electronic system. Various Active Power Decoupling (APD) methods have been proposed intending to improve the reliability of the DC-link E-Caps qualitatively, making great effort to diverting the instantaneous pulsation power into extra reliable storage components. However, it is still an open question, which method is the most cost-effective one for a specific application with a given lifetime requirement. In this paper, two of the representative APD methods and the classical passive DC-link design method are evaluated from the reliability and cost perspective. The reliability-oriented design procedure is applied to size the chip area of active switching devices and the passive components to fulfill a specific lifetime target. Component cost models are applied to obtain the overall cost of each DC-link design methods. The cost comparisons are performed with a lifetime target of 10 years and 35 years. It reveals that different conclusions can be drawn with different lifetime targets in terms of cost-effectiveness.

    Original languageBritish English
    Title of host publication2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages3818-3825
    Number of pages8
    ISBN (Electronic)9781509012107
    DOIs
    StatePublished - 13 Jul 2016
    Event8th IEEE International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016 - Hefei, China
    Duration: 22 May 201626 May 2016

    Publication series

    Name2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016

    Conference

    Conference8th IEEE International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016
    Country/TerritoryChina
    CityHefei
    Period22/05/1626/05/16

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