Applications of the generalized state-space averaging method to modelling of DC-DC power converters

摘要

Power converter models are time varying because of the switching action of power electronic devices. To find time-invariant models, this tutorial article presents the appli-cations of the generalized state-space averaging method to the modelling of a zeta converter feeding a resistive load and paralleled buck converters driving a DC motor. Simulations using the proposed models with MATLAB coding agree well with the results of PSIM~(TM) and SimPowerSystem~(TM)of SIMUL1NK. Beside, simulations using the proposed model reduce the simulation time by 64% as an average in comparison with the available software packages.