Low cost program for simulation of power electronic converters and systems

This paper states that the use of simulations tools is very important, especially in order to get an increased understanding of a converters or systems behaviour. The paper presents simulation examples (controlled thyristor DC-motor drive) which requires a powerful simulation tool. The paper shows that a low cost program sold on a non-commercial basis can be used for these simulations. This should be of interest both for university and industrial people. The basic requirement to be fulfilled by a time domain simulation program is that it offers simple, ideal models of the basic components used in power electronic systems and converters. This paper focuses on a program which offers ideal component models together with possibilities of inclusion of more advanced models. The program used is KREAN which is a special purpose program for simulation of power electronic converters and systems. The program is shown to work very well on the selected example. The presented results corresponds to what should be expected from a idealized circuit. The aim of this paper is not to present the simulation results themselves. The results are presented in order to illustrate the capabilities of the program and the power of simulations for illustration of circuit behaviour. Thus details such as component values, controller parameters etc. is omitted.