Simulation of Switching Converters on the Level of Averaged Voltages and Currents
This work provides a simulation method for power electronics engineers, but it is incremental as it combines existing concepts without major breakthroughs.
The paper proposes an algorithm for simulating switching converters using averaged circuit models and linear ripple approximation, demonstrating its application on buck, boost, buck-boost, and flyback converters.
An algorithm for simulation of switching converters is proposed in the paper. The algorithm is based on simulation of averaged circuit model applying "switching cell" concept, and construction of instantaneous values of the waveforms using quasi steady state and linear ripple approximation. Simulation covers converters operating both in the continuous and the discontinuous conduction mode. Application of the algorithm is demonstrated by simulation results of all three of the basic converters: buck, boost and buckboost, as well as a flyback converter, which required slight generalization of the switching cell concept.