Weight and efficiency optimization strategy of an interleaved DC-DC converter for a solar aircraft

Today, energy saving is one of the main objectives for engineers. In the case of mobile applications, energy can be saved by two different ways. First, decreasing the total masse of the system, and second, increasing the efficiency of the overall system. This paper presents an optimization strategy to design an interleaved DC/DC converter in order to find the best compromise between efficiency, weight and current inductor ripple. The strategy of this method also lends itself well to find the right split power level that must by selected to obtain the best efficiency and weight power density of a given application.

[1]  Charles R. Sullivan,et al.  Accurate prediction of ferrite core loss with nonsinusoidal waveforms using only Steinmetz parameters , 2002, 2002 IEEE Workshop on Computers in Power Electronics, 2002. Proceedings..

[2]  B. Destraz,et al.  High Efficient Interleaved Multi-channel dc/dc Converter Dedicated to Mobile Applications , 2006, Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting.

[3]  Y. Perriard,et al.  Round the world flight with a solar aircraft: complex system optimization process Yves Perriard, Senior Member, Patrick Ragot, Student Member, Miroslav Markovic, Member Ecole Polytechnique F6d6rale de Lausanne (EPFL) , 2005, IEEE International Conference on Electric Machines and Drives, 2005..

[4]  J. Schonberger,et al.  Modelling turn-off losses in power diodes , 2008, 2008 11th Workshop on Control and Modeling for Power Electronics.

[5]  T. Martire,et al.  Optimization of the Supply Voltage System in Interleaved Converters Using Intercell Transformers , 2007, IEEE Transactions on Power Electronics.

[6]  J. Roudet,et al.  Application of Dovvell method for nanocrystalline toroid high frequency transformers , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[7]  I. Villar,et al.  Analysis of empirical core loss evaluation methods for non-sinusoidally fed medium frequency power transformers , 2008, 2008 IEEE International Symposium on Industrial Electronics.