Title :
Modeling losses and stresses of high frequency power converters using SABER
Author :
Farrington, Richard ; Jovanovic, Milan ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
To accurately predict the effects of parasitics on losses and stresses in high-frequency power converters, a SABER-based simulator has been developed. SABER is used to precisely model the large-signal behavior of the power converter and to calculate semiconductor losses and stresses. A separate program, which is linked with SABER, calculates the winding and core losses of the power transformer and the resonant and output filter inductor. This program models copper losses due to skin and proximity effects and uses measured data to calculate the core loss. The simulator is verified on a 50 W forward zero voltage switched multiresonant power converter operating at 2 MHz. The calculated efficiency and semiconductor stresses are in excellent agreement with the measured data. The simulator can be used iteratively to further enhance the accuracy of simulation
Keywords :
circuit analysis computing; digital simulation; losses; power convertors; power engineering computing; power transformers; software packages; transformer cores; transformer windings; 2 MHz; 50 W; HF; SABER; copper losses; core; efficiency; large-signal behavior; losses; output filter inductor; parasitics; power engineering computing; power transformer; proximity effects; resonant filter; semiconductor; skin effect; software packages; stresses; winding; zero voltage switched multiresonant power converter; Copper; Core loss; Filters; Frequency conversion; Inductors; Power transformers; Predictive models; Resonance; Skin; Stress;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1991. APEC '91. Conference Proceedings, 1991., Sixth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-0024-6
DOI :
10.1109/APEC.1991.146182
