Hydrogen vs. Battery in the Long-term Operation. A Comparative Between Energy Management Strategies for Hybrid Renewable Microgrids

Autor: Enrico Bocci, F.J. Vivas, Francisca Segura Manzano, José Manuel Andújar, Andrea Monforti Ferrario, Luigi Martirano
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Battery (electricity)
Computer Networks and Communications
Computer science
Energy management
020209 energy
energy management system
lcsh:TK7800-8360
02 engineering and technology
battery-priority strategy
energy storage
hybrid renewable microgrid
hydrogen storage
hydrogen-priority strategy
microgrid modelling
Energy storage
Hybrid renewable microgrid
Hydrogen storage
Hydrogen-priority strategy
0202 electrical engineering
electronic engineering
information engineering
Electrical and Electronic Engineering
Energy management system
business.industry
lcsh:Electronics
Microgrid modelling
021001 nanoscience & nanotechnology
Renewable energy
Reliability engineering
Hardware and Architecture
Control and Systems Engineering
Energy intensity
Distributed generation
Signal Processing
Microgrid
0210 nano-technology
business
Efficient energy use
Zdroj: Arias Montano. Repositorio Institucional de la Universidad de Huelva
Consejo Superior de Investigaciones Científicas (CSIC)
Electronics
Volume 9
Issue 4
Electronics, Vol 9, Iss 698, p 698 (2020)
Popis: The growth of the world&rsquo
s energy demand over recent decades in relation to energy intensity and demography is clear. At the same time, the use of renewable energy sources is pursued to address decarbonization targets, but the stochasticity of renewable energy systems produces an increasing need for management systems to supply such energy volume while guaranteeing, at the same time, the security and reliability of the microgrids. Locally distributed energy storage systems (ESS) may provide the capacity to temporarily decouple production and demand. In this sense, the most implemented ESS in local energy districts are small&ndash
medium-scale electrochemical batteries. However, hydrogen systems are viable for storing larger energy quantities thanks to its intrinsic high mass-energy density. To match generation, demand and storage, energy management systems (EMSs) become crucial. This paper compares two strategies for an energy management system based on hydrogen-priority vs. battery-priority for the operation of a hybrid renewable microgrid. The overall performance of the two mentioned strategies is compared in the long-term operation via a set of evaluation parameters defined by the unmet load, storage efficiency, operating hours and cumulative energy. The results show that the hydrogen-priority strategy allows the microgrid to be led towards island operation because it saves a higher amount of energy, while the battery-priority strategy reduces the energy efficiency in the storage round trip. The main contribution of this work lies in the demonstration that conventional EMS for microgrids&rsquo
operation based on battery-priority strategy should turn into hydrogen-priority to keep the reliability and independence of the microgrid in the long-term operation.
Databáze: OpenAIRE
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