ABSTRACT

This chapter describes the interactive component-level models for the single-phase full-wave diode bridge rectifier, single-phase full-wave silicon-controlled rectifier converter and three-phase full-wave diode bridge rectifier. It explores interactive component-level models for buck, boost and buck–boost converters are developed using semiconductor and passive components. The semiconductor switch has a forward voltage drop and on resistance, whereas in the system model of the buck converter, the switch is ideal. The resulting output of the Relational Operator/Op-Amp comparator is the pulse width modulation gate pulse for the multilevel converter. The system models use ideal switches, whereas component-level models use semiconductor switches and components that are non-ideal. The results obtained by simulation of the component-level model for each power electronic converter are compared with those of their respective system model. The possible causes of discrepancies in the simulation results between these two types of model are presented.