PECS: a power electronic circuits-oriented simulator

Abstract

The computer program PEGS (power electronic circuits simulator) presented in this paper is oriented to the transient time-domain analysis of the power stage of switching converters. PECS performs the analysis of switched RLC networks of any complexity, ensuring reliability, rapidity and flexibility. PECS is circuit-independent and does not require prior knowledge about the mode of operation of the circuit. PECS adopts innovative methods to solve the major problems connected to the time-domain simulation of switching converters: the formulation of circuit equations; the calculation of switching instants; and the determination of switches' configuration after forced commutations. PECS is best suited for quick preliminary circuit analysis during converters design. A survey of PECS characteristics is followed in the paper by several examples of switching converters simulation.