Power Electronic Systems

Abstract- Interpolation is a means for accurately mod-elling the exact switching instant in transient simulation programs without using a small timestep. The paper describes the construction of a number of control com-ponents which perform such interpolation using PSCAD/EMTDC as the simulation platform. A user can connect these together to design an arbitrarily complex controller of his or her choice. The developed librar includes comparators, logic gates, flip-flops and other typical control blocks necessary for power electronic systems. A pulse width modulated (PWM) inverter sys-tem is used to demonstrate the approach