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D.3.4 Energy storage management and integration
Energy system storages (ESS) can increase energy security by improving the self-sufficiency rate, providing uninterrupted power supply functionalities to maintain power supply in case of grid failures. Due to their fast response and high-power capabilities, batteries are among the best candidates to provide electrical power system stability.
To properly select the substitution candidates for the planned aluminium-ion technologies, a list of the main criteria for choosing an ESS in the REACT project has been determined. Preliminarily we have selected six proven and state-of-the-art storage technologies: Lead-carbon battery, Li-ion (LTO) battery, Li-ion (NMC) battery, Vanadium Redox Flow battery, Sodium-ion battery, and Hydrogen storage. The benchmarking shows that Sodium-ion and Lithium-ion batteries (both LTO and NMC) are suitable substitutes for the planned aluminium-ion technologies.
The report then discusses how control actions will be triggered and how they integrate into the REACT ICT system, and details of the implementation of control strategies using OpenMUC. The edge level of the REACT architecture is described in detail in block and sequence diagrams. For SMA and Victron devices, inverters and smart meters, the communication protocol is Modbus. The OpenMUC based battery controllers are presented along with their description, parameters, and channels. Finally, the battery controllers are tested and validated using a mock battery simulation. The data plotter of OpenMUC validates how a self-consumption optimisation controller can be implemented.