Performance Analysis of a Boost Converter with Components Losses

Abstract

A theoretical study of a conventional boost converter is presented. Based on the real behavior of the components, two models of the boost converter are introduced: one dealing only with losses through inductor and capacitor and another taking into account switching losses in addition to resistive ones. From these two models, the detailed analytical expressions of both voltage gain factor and conversion efficiency are established taking into account the losses through parasitic resistances and switching losses. The behavior of the converter is then analyzed for each model by simulation for the voltage gain factor and the conversion efficiency.

Theoretical and experimental analysis of a boost converter

“…Based on the above mathematical formulation, simulations were performed by varying duty cycle, series resistances, and choosing different transistors and diodes parameters. The effects of the series resistances are pointed out, as well as transistor and diode losses Honadia et al,2018.…”

Quadratic Boost Converter: An Analysis with Passive Components Losses

“…This figure shows that as the duty cycle increases, the conversion decrease and this decrease is very marked for duty cycles close to unity if the series resistance r L of the inductor is small. When r L is high, the losses in the inductor prevail as duty cycle increase leading to the observed decrease of the conversion efficiency [19].…”

“…the values of these different curves.It would be advisable not to operate at duty cycles greater than 0.8 because the effects of series resistances are more marked in this area. Indeed, working with a duty cycle close to the unit increases the stress of the semiconductors and decreases sharply the life of the converter[19].…”