Title :
Parallel/series connection of self-sustained oscillating series-parallel resonant converters
Author :
Aigner, H. ; Biela, Juergen
Author_Institution :
Lorch Schweisstechnik GmbH, Auenwald, Germany
fDate :
Aug. 30 2011-Sept. 1 2011
Abstract :
In this paper, a new interconnection concept of two (or more) series-parallel resonant converter suitable for parallel/series connected inputs is proposed. With this connection method operation at a wide range of operating voltages and good semiconductor utilisation is enabled. Furthermore, the balance of the two resonant converter input voltages in case of a series connection is investigated and a method for improving the voltage balancing is presented. The proposed concept is verified by measurement results and the design of the converter/integrated transformer is discussed in detail.
Keywords :
resonant power convertors; converter-integrated transformer; parallel-series connection; resonant converter input voltages; self-sustained oscillating series-parallel resonant converters; semiconductor utilisation; voltage balancing; Capacitors; Control systems; Inductors; Logic gates; Magnetic resonance; Switching frequency; Windings; Load sharing control; Resonant converter; Series operation;
Conference_Titel :
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-61284-167-0
Electronic_ISBN :
978-90-75815-15-3
