Dynamic frequency scaling to improve converter efficiency (2007)
AuthorsTurner, R., Duke, R., Walton, S.show all
A controller, suitable for medium to high power switching converters (1kW to 1MW), is proposed that dynamically changes the output PWM carrier frequency. The control objective is to optimise the choice of switching frequency so as to maximise overall converter efficiency, while providing a good transient performance. A range of control techniques which can determine when to change the PWM switching frequency are investigated. The practical limitations imposed by conventional PWM controllers and DSPs used in switching converter control are also considered.
CitationTurner, R., Duke, R., Walton, S. (2007) Dynamic frequency scaling to improve converter efficiency. Perth, Australia: Australasian Universities Power Engineering Conference (AUPEC) 2007, 9-12 Dec 2007. Proceedings of the Australasian Universities Power Engineering Conference (AUPEC) 2007, 5pp.
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