Title :
Experimental evaluation of the core losses in the magnetic components used in PFC converters. Application to optimize the flyback structure losses
Author :
Larouci, C. ; Ferrieux, J.P. ; Gerbaud, L. ; Roudet, J. ; Catellani, S.
Author_Institution :
Lab. d´´Electrotechnique de Grenoble, Univ. Joseph Fourier, Grenoble, France
Abstract :
The paper presents an experimental method to estimate the core losses dissipated in the magnetic components used in power switching supplies that operate in discontinuous and continuous asymmetrical mode with the network frequency modulation. Special workbenches are made to evaluate these core losses in different situations. That allows to obtain simple analytical formulae appropriate for an optimization process. This analytical model is integrated in a global optimization approach of a flyback converter in PFC mode. The optimization results are validated by experiments
Keywords :
AC-DC power convertors; DC-DC power convertors; loss measurement; losses; magnetic cores; magnetic variables measurement; power factor correction; rectifying circuits; switched mode power supplies; AC/DC power conversion; DC/DC power conversion; PFC converters; continuous asymmetrical mode; discontinuous mode; flyback converter; flyback structure losses optimisation; global optimization approach; magnetic component core losses; network frequency modulation; power switching supplies; Core loss; Equations; Frequency estimation; Frequency modulation; Magnetic analysis; Magnetic flux; Magnetic switching; Power supplies; Switching converters; Switching frequency;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989266
