Work

Sensorless Current Control: An Experimental Validation Applied to a DC-DC Buck Converter

Year: 2025

Type: conference-paper

Abstract: The dependence of power electronics converters is increasingly unquestionable, where a vast majority of topologies can be used supported by digital control algorithms. Normally, control requires the use of sensors, however, although less considered, sensorless techniques can also be applied, offering the possibility of reducing the hardware necessities, while increasing the control requirements. This paper proposes a sensorless current control applied to a DC-DC buck converter. The mathematical formulation of the sensorless technique is presented for contextualization with the DC-DC buck converter but, it is also illustrated how it can be derived for other voltage-source converters, controlled by current. The validation is performed by computer validation and corroborated by experimental results of a fully developed laboratorial prototype of a DC-DC buck converter. The results confirm the applicability of the proposed sensorless current control for different requirements of load operation.

Source: International Young Engineers Forum on Electrical and Computer Engineering (YEF-ECE)

DOI: 10.1109/yef-ece66503.2025.11117532

Authors: Ana Dias, Rosalina Morais, Joao L. Afonso, Vitor Monteiro

Institution: University of Minho

Language: English

Topic: Advanced DC-DC Converters

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Fundação para a Ciência e a Tecnologia

Award: G3072812560