Modeling of an Energy Hybrid System Integrating Several Storage Technologies: The DBS Technique in a Nanogrid Application

Roberto Ciavarella, Giorgio Graditi, Maria Valenti, Anna Pinnarelli, Giuseppe Barone, Maurizio Vizza, Daniele Menniti, Nicola Sorrentino and Giovanni Brusco
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Roberto Ciavarella: Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy
Giorgio Graditi: Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy
Maria Valenti: Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy
Anna Pinnarelli: Department of Mechanical, Energy and Management Engineering, University of Calabria, 87036 Rende, Italy
Giuseppe Barone: Department of Mechanical, Energy and Management Engineering, University of Calabria, 87036 Rende, Italy
Maurizio Vizza: Department of Mechanical, Energy and Management Engineering, University of Calabria, 87036 Rende, Italy
Daniele Menniti: Department of Mechanical, Energy and Management Engineering, University of Calabria, 87036 Rende, Italy
Nicola Sorrentino: Department of Mechanical, Energy and Management Engineering, University of Calabria, 87036 Rende, Italy
Giovanni Brusco: Creta Energie Speciali s.r.l., 87036 Rende, Italy

Sustainability, 2021, vol. 13, issue 3, 1-35

Abstract: Hybrid Systems in microgrid applications have gained relevance in power flow management in the context of the worldwide power grids transformation. Successfully integrating several technologies of micro resources and storage systems is a key component of microgrid applications. To address this issue, dc-bus signaling (DBS) is proposed here and used as a distributed decentralized control strategy in which the control nodes, as the generation sources/storage interface converters, induce DC bus voltage-level changes to communicate with the other control nodes. The DC bus voltage thresholds are identified and assigned to each converter to trigger the point at which it begins discharging or charging for six different DC Nano Grid (DCNG) configurations, thereby integrating both conventional and unconventional storage systems. Several test cases have been analyzed to verify the effectiveness of the proposed control logic.

Keywords: microgrid; distributed generation; nanogrid; hybrid system; storage system; DC bus signaling strategy (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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