Development of a photovoltaic low voltage DC microgrid for buildings with energy storage systems

Jérémy Dulout 1 Corinne Alonso 1 Lionel Séguier 2 Bruno Jammes 1
1 LAAS-ISGE - Équipe Intégration de Systèmes de Gestion de l'Énergie
LAAS - Laboratoire d'analyse et d'architecture des systèmes
2 LAAS-I2C - Service Instrumentation Conception Caractérisation
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : In order to develop a sustainable datacenter, which would help to validate energy management and task scheduling algorithms, a low voltage direct current (LVDC) microgrid (MG) has been deployed in the ADREAM Building-Integrated Photovoltaic (BIPV) of the LAAS-CNRS in Toulouse, France. This MG is composed of a 1 kWp PV source, 300 Ah – 36 V lead-acid batteries, 330 F – 48 V supercapacitor (SC) pack and DC loads (cloud servers, USB chargers, sensors monitoring an apartment…). A very simple and efficient energy flow management strategy, based on the " DC bus signaling " approach has been implemented. It takes advantage of the DC bus architecture and enables a scalable electrical structure constituted of several sources, loads and storage elements easy to connect/disconnect via their converters. The development of this MG put in evidence the need for future theoretical developments regarding the determination of optimal DC bus signaling thresholds.
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Jérémy Dulout, Corinne Alonso, Lionel Séguier, Bruno Jammes. Development of a photovoltaic low voltage DC microgrid for buildings with energy storage systems. ELECTRIMACS 2017, Jul 2017, Toulouse, France. 6p. ⟨hal-01526247⟩

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