Computer Analysis of a Power Electronic System with Analog-Digital Mixed Elements

Abstract

This paper proposes a new efficient method which solves mixed circuit equations of a power electronic system by utilizing element characteristics not only of main and control circuits but also of digital and analog elements. First, formulated circuit equations are divided into the minimum units of circuit block groups. Then the groups are scheduled and solved sequentially according to order of their signal flows. The method is applied to analysis of two example power converters. Computed results showed reduction of circuit equation sizes and efficiency of numerical iteration processes.