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Evaluation of a variable-inductor-controlled LLC resonant converter for battery charging applications

Costa, V. ; Perdigão, M. ; Mendes, A. M. S. ; Álvarez, J.

Evaluation of a variable-inductor-controlled LLC resonant converter for battery charging applications, Proc Annual Conference of the IEEE Industrial Electronics Society (IECON), Florence, Italy, Vol. , pp. - , October, 2016.

Digital Object Identifier: 10.1109/IECON.2016.7793916

 

Abstract
Based on the respective merits of the LLC resonant converter and the VI (Variable Inductor), a new battery charger topology is proposed. This paper presents a design methodology for the LLC resonant converter controlled with a VI. The output of the converter is regulated through a variable resonant tank in order to control the charging process. A small-scale prototype fed by a 50V DC input, with an IGBT based inverter working at 11.3 kHz was built in order to test the proposed control method. Experimental results are presented.