A comparison between three modeling approaches for computer implementation of high-fixed-switching-frequency power converters operating in a continuous mode

In this paper, a comparative evaluation of three simulation tools for modeling and numerically implementing switch mode power converters is presented. The first simulation technique is based on the use of a state-space averaged model of the converter, the second approach makes use of the switching function concept, whereas the third one consists of using the Power System Blockset tool of Matlab/Simulink. The three modeling techniques are applied to a same DC-to-DC boost topology operating in a continuous conduction mode, with a fixed switching frequency. These techniques are compared on the basis of their rapidity, precision and limitations.