Function test by HIL for DC-DC converters type: Buck, boost and buck-boost

Abstract

The main aim of this document is to verify the operation of the closed loop control for power converters through by HIL technical whose topologies are the buck, boost, and the buck-boost. This includes different signals properties, for example, input to the switching device (PWM), the response voltage and the current of the inductor. To develop objectives as mentioned, three main stages are raised: Design, simulation and MatLab-Simulink simulation RT-LAB (Software associate OPAL-RT). In the design stage, can include the selection of power converter about topology and the characteristics of closed loop control are obtained, it includes transfer functions (continuous and discontinuous conduction mode) and the controller used properties. On the other hand, this manuscript presents the advantages of real-time simulations are illustrated by three case studies of different converters. At the end, this manuscript shows that the models of converters are proposed in the methodology section is consistent with the values in terms of current and voltage is concerned. It also shows the ease and saving costs by not using the risk of a physical system simulation.