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.
Originalsprog | Engelsk |
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Titel | Proceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE) |
Forlag | IEEE Press |
Publikationsdato | okt. 2017 |
DOI | |
Status | Udgivet - okt. 2017 |
Begivenhed | 2017 IEEE Energy Conversion Congress and Exposition (ECCE) - Cincinnati, Ohio, USA Varighed: 1 okt. 2017 → 5 okt. 2017 |
Konference
Konference | 2017 IEEE Energy Conversion Congress and Exposition (ECCE) |
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Land/Område | USA |
By | Cincinnati, Ohio |
Periode | 01/10/2017 → 05/10/2017 |