A General-Oriented Simulation Technique for Power Electronic Systems Using Quadratic Branch Voltage Extrapolation

A new general-oriented time-domain simulation technique for power electronic systems is developed. The algorithm is based on stepwise quadratic extrapolations on the branch voltages across each reactive element, together with progressive validation of the switches' operation. The power of this new technique lies in its simplicity in solving purely resistive networks for each topological configuration, generality in requiring no a priori understanding of the switching relationships and sequence of operations, inclusion of the effects of the parasitic elements, effectiveness of using computer memory, and ease of implementation on a desktop computer. Several examples illustrating the generality and computational efficiency of this new approach are presented and verified with experimental measurements and other available literature. © 1997 IEEE