Dimensionnement et protection d'un micro-réseau isolé en courant continu pour l'électrification rurale des pays en voie de développement

Details

Supervisors

De Jaeger, Emmanuel

Faculty

Ecole polytechnique de Louvain

Degree label

Master [120] : ingénieur civil électromécanicien

Abstract

enUniversal electrification is one of the "Sustainable Development Goals" that the Member States of the United Nations have committed themselves to achieve by 2030. One decade therefore remains to carry out a series of ambitious actions in terms of access to electricity in the poorest countries, energy efficiency, but also to increase the share of renewable energy in the electricity sector. In order to achieve these objectives, low-voltage direct current micro-grids are attracting a lot of interest because they allow the integration of different types of renewable energies, which is an asset for the electrification of remote areas. This emerging and promising technology nevertheless raises a series of questions. In this work, we will explore the protection of low-voltage direct current micro-grids. This is one of the essential technical aspects which must be studied in order for these micro-grids to develop worldwide. As protection covers many research topics, this work will focus mainly on short-circuit fault protection. The aim will be to implement a device that allows complete management of a short-circuit fault that may occur on a line, eliminating it as quickly as possible and ensuring the protection of the loads and means of production connected to it. Then, in connection with protection, the topic of bipolar voltage stabilization on the network will be addressed. We will thus see that a bipolar micro-network has serious advantages in terms of resilience to faults.