Abstract
In LLC resonant converters, the variable duty-cycle control is usually combined with a variable frequency control to widen the gain range, improve the light-load efficiency, or suppress the inrush current during start-up. However, a proper analytical model for the variable duty-cycle controlled LLC converter is still not available due to the complexity of operation modes and the nonlinearity of steady-state equations. This paper makes the efforts to develop an analytical model for the LLC converter with variable duty-cycle control. All possible operation models and critical operation characteristics are identified and discussed. The proposed model enables a better understanding of the operation characteristics and fast parameter design of the LLC converter, which otherwise cannot be achieved by the existing simulation based methods and numerical models. The results obtained from the proposed model are in well agreement with the simulations and the experimental verifications from a 500-W prototype.
Originalsprog | Engelsk |
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Titel | Proceedings of the 8th Annual IEEE Energy Conversion Congress & Exposition (ECCE), 2016 |
Antal sider | 7 |
Forlag | IEEE Press |
Publikationsdato | sep. 2016 |
ISBN (Elektronisk) | 978-1-5090-0737-0 |
DOI | |
Status | Udgivet - sep. 2016 |
Begivenhed | 8th Annual IEEE Energy Conversion Congress & Exposition: ECCE 2016 - Milwaukee, WI, USA Varighed: 18 sep. 2016 → 22 sep. 2016 http://www.ieee-ecce.org/ |
Konference
Konference | 8th Annual IEEE Energy Conversion Congress & Exposition |
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Land/Område | USA |
By | Milwaukee, WI |
Periode | 18/09/2016 → 22/09/2016 |
Sponsor | IEEE, IEEE Industry Applications Society (IAS), IEEE Power Electronics and Industry Applications Societies (PELS) |
Internetadresse |