Title :
Approximate analysis of the resonant LCL DC-DC converter
Author :
Ivensky, G. ; Bronstein, Svetlana ; Ben-yaakov, Sam
Author_Institution :
Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
Abstract :
An approximate analysis of LCL converters operating above and below resonance is presented. The study, based on replacing the rectifier and load by an equivalent parallel resistance, applies the fundamental harmonics method and the assumption that the current through the diodes of the output rectifier has a sinusoidal waveform. Equations obtained for the conduction angle of these diodes (less than π in discontinuous and equal to π in continuous conduction modes) are used for developing the output-to-input voltage ratio as a function of three independent parameters. The theoretical and experimental results are in good agreement.
Keywords :
DC-DC power convertors; harmonics; nonlinear network analysis; resonant power convertors; LCL converters; approximate circuit analysis; conduction angle; continuous conduction mode; discontinuous conduction mode; equivalent parallel resistance; fundamental harmonics method; load; output-to-input voltage ratio; rectifier; resonant LCL DC-DC converter; resonant converter; Bridge circuits; DC-DC power converters; Diodes; Filters; Inductors; Power electronics; Rectifiers; Resonance; Resonant inverters; Voltage;
Conference_Titel :
Electrical and Electronics Engineers in Israel, 2004. Proceedings. 2004 23rd IEEE Convention of
Print_ISBN :
0-7803-8427-X
DOI :
10.1109/EEEI.2004.1361084
