An active capacitor with self-power and internal feedback control signals

Haoran Wang, Huai Wang

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

    4 Scopus citations

    Abstract

    This paper proposes a concept of two-Terminal active capacitor implemented by power semiconductor switches and passive elements. The active capacitor has the same level of convenience as a passive one with two power terminals only. A control strategy that does not require any external feedback signal is proposed and a self-power scheme for gate drivers and the controller is applied to achieve the two-Terminal active capacitor. The concept, control method, self-power scheme, efficiency, and impedance characteristics of the active capacitor are presented. A case study of the proposed active capacitor for a capacitive DC-link application is discussed. The results reveal a significantly lower overall energy storage of passive elements and a reduced cost to fulfill a specific reliability target, compared to a passive capacitor solution. Proof-of-concept experimental results are given to verify the functionality of the proposed capacitor.

    Original languageBritish English
    Title of host publication2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages3484-3488
    Number of pages5
    ISBN (Electronic)9781509029983
    DOIs
    StatePublished - 3 Nov 2017
    Event9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States
    Duration: 1 Oct 20175 Oct 2017

    Publication series

    Name2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
    Volume2017-January

    Conference

    Conference9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
    Country/TerritoryUnited States
    CityCincinnati
    Period1/10/175/10/17

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