Abstract
Capacitive DC links provide the only low-impedance current path connected with an input source during the start-up of many voltage source converters. A soft-start circuit is usually implemented to limit the inrush current. A two-terminal active capacitor is recently proposed which can directly replace conventional passive capacitors in DC links, with reduced cost or size for a given application. The active capacitor has the same level of convenience with two power terminals only as a passive capacitor. This paper proposes two start-up schemes for the active capacitor to overcome the drawbacks of existing methods previously widely used for passive capacitors. One scheme is based on a trade-off design between the start-up performance and the component sizing of the active capacitor. The other scheme is based on either an additional bypass switch together with the existing soft-start circuit in the DC bus or a start-up circuit fully integrated in the active capacitor. The theoretical analyses and experiments are presented. A case study on a single-phase full-bridge rectifier demonstrates the effectiveness of the implemented start-up schemes.
Originalsprog | Engelsk |
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Titel | Proceedings of 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 |
Antal sider | 5 |
Forlag | IEEE Press |
Publikationsdato | okt. 2017 |
Sider | 7953-7957 |
ISBN (Elektronisk) | 978-1-5386-1127-2 |
DOI | |
Status | Udgivet - okt. 2017 |
Begivenhed | 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, Kina Varighed: 29 okt. 2017 → 1 nov. 2017 |
Konference
Konference | 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 |
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Land/Område | Kina |
By | Beijing |
Periode | 29/10/2017 → 01/11/2017 |
Sponsor | Chinese Association of Automation (CAA), Chinese Power Supply Society, et al., IEEE Industrial Electronics Society (IES), Systems Engineering Society of China, The Institute of Electrical and Electronics Engineers (IEEE) |