Simulateur digital des convertisseurs de puissance à thyristors

This paper deals with a digital simulator for the analysis of any thyristor converter. The analysis is based upon a topological method of formulation of state equations and power thyristors and diodes are modelled as inductances. The value of each thyristor inductance changes from a finite value equal to the di/dt limiting series inductance, while conducting, to an infinite value when blocked. The simulator takes into consideration the presence of the snubber circuits associated with each thyristor element. The simulator library which has been named ATOSEC I has been developed having in mind the creation of a tool for the design by computer aided analysis of power electronic converters. It has been presently implemented on a CDC CYBER and will be available to prospective users from the authors.