Simulation and optimisation of diode and IGBT interaction in a chopper cell using MATLAB and Simulink

Abstract

A simulation method for power electronic devices has emerged which has high accuracy and short runtimes based on a Fourier model of the device physics. This paper describes the use of the Fourier models for diodes and IGBTs and implementation in MATLAB and Simulink in a formal optimisation strategy. In particular, this paper investigates coupled circuit, diode and IGBT behaviour. Conclusions are drawn concerning device loading and circuit design, especially the role of stray inductance.