A Mixed Conduction Mode-Controlled Bridgeless Boost PFC Converter and Its Mission Profile-Based Reliability Analysis

Zhengge Chen, Jianping Xu, Pooya Davari, Huai Wang

    Research output: Contribution to journalArticlepeer-review

    15 Scopus citations

    Abstract

    Given the telecom base transceiver station (BTS) load mission profiles, a mixed conduction mode (MCM) control for a bridgeless boost PFC converter (IPOS boost) is proposed to mainly improve its power factor and reduce the input current total harmonic distortion (THDi) in the light-load conditions. The principle of the MCM control and the efficiency analysis are introduced. Then, the experimental verification is performed to show the control effectiveness and performance improvements. Furthermore, a mission profile-based reliability assessment for the PFC converter is presented to analyze the IPOS boost under the classical average current (AVC) control and the proposed MCM control, along with its conventional boost counterpart under the AVC control. Considering the measured efficiency data and BTS typical mission profiles in a rural area, the analysis results indicate that given 20 years of operation, the accumulated failure of the IPOS boost under the AVC controls is 0.27%, and is further decreased to 0.24% by just the software update with the proposed MCM control. By contrast, the accumulated failure of the conventional boost counterpart under the AVC control is 2.06%, much higher than the IPOS boost.

    Original languageBritish English
    Pages (from-to)9674-9686
    Number of pages13
    JournalIEEE Transactions on Power Electronics
    Volume37
    Issue number8
    DOIs
    StatePublished - 1 Aug 2022

    Keywords

    • Base transceiver station (BTS)
    • bridgeless
    • mission profile
    • mixed conduction mode (MCM)
    • power factor correction (PFC)
    • reliability analysis
    • wear-out

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