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Hybrid Battery energy stoRage system for advanced grid and beHInd-de-meter Segments

Periodic Reporting for period 1 - HYBRIS (Hybrid Battery energy stoRage system for advanced grid and beHInd-de-meter Segments)

Período documentado: 2021-01-01 hasta 2022-06-30

HYBRIS is an integrated, 3-year industrially driven action that brings together 15 partners from 6 European countries with the aim to develop a novel battery enabled hybrid storage system. The novel Hybrid Energy Storage System (HESS) developed by our project is based on the battery hybridization by twinning at system level of two of the best energy storage technologies available: Lithium Titanate (LiTO), a high power density component, and Aqueous Organic Redox Flow Batteries (AORFB), a high energy density component. These two technologies are coupled with the development of a breakthrough Battery Management System, Novel Power Electronics and an advanced Power Management System which is fully integrated with Energy Management Systems (EMS) and grid systems.
WP1 KPIs and Project Requirements
o Define the requirements and specifications of the LTO and AORFB batteries.
o Identification of KPIs which can be used throughout the project
o Analyse new business models for hybrid batteries in the paradigm of energy as a service.
o Provide national and EU regulatory review which includes technical and market codes
o Provide preliminary ecodesign recommendations, including environmental, safety and recyclibility concerns, through a LCA perspective
o Calculate HYBRIS concept baseline levelized cost of storage (LCOS) for technology positioning versus the SoA.
WP2 Development and characterisation of the battery components
o Definition of prototype requirements and dimensions, power and energy capabilities, electronic coupling architecture, containerization.
o Study & characterization of Li diffusion in LTO anodes and electrode degradation processes
o Communication with battery BMU for the LiB system
o Description of test protocols and report the test campaign outcomes for LiB system
o Thermal characterization for model developing on LiB cell
o Show theoretical studies on possible solutions for better thermal management in high-power applications by use of COMSOL simulation
o Evaluate different membranes (using 3 different negolytes) and different electrode/electrolyte configurations (in particular Ni foam electrodes vs Kemiwatt’s reference carbon electrodes) to improve AORFB efficiency and lifetime
o Scale up the promising membranes and electrodes found in a more realistic AORFB dimension and structuration
WP3 Advanced BMS, electrical architecture and power conversion
o Modelling of LTO and AORFB batteries: performance and ageing models,
o Specification of ABMS skeleton, embedded features and communication architecture,
o First services development and integration tests within the ABMS platform, Modelling of converter for HESS electrical architecture and converter design optimization
o Optimization study of HESS architecture and best trade off selection,
o Specification of optimal converter prototype architecture,
WP4 Hybrid Storage Optimal Sizing and Control
o Coordinate with Work Packages 2 and 3 to facilitate alignment in specifications, KPIs, and Use Case study definitions between the battery development and digital twin environments.
WP5 System integration and validation
o Coordinate with Battery Providers to define dimensions and needs from a battery perspective to define HESS integration/assembly needs
o Define main systems for containerisation of the HESS
WP6 Demonstration and Evaluation
o Definition of assets being involved within the demonstration and connected/integrated with the HESS as well as location of HESS within the premises, as well as technical specifications/requirements for Demo Sites from HESS perspective.
WP7 Stakeholder-oriented exploitation, dissemination, communication and training
o Establish and maintain the mechanisms for effective and timely communication
o Scientific diffusion of the R&D works performed
o Identification of the HYBRIS KERs, development of business models, management of IPR
o Standardization and regulation support
WP8 PM:
o Submission of 2 amendments including substantial changes to Grant Agreement.
o Organisation and hosting of monthly PMT Meetings with WP Leaders, Technical partners and Demo Site Owners
o Technical Group Meetings (TGM) eventually organised, every two weeks to ensure a seamless project execution
Optimized LTO technology: A Battery Thermal Management System will be developed to maintain the battery in ideal conditions, while controlling temperature increase below 45°C, when 5C discharge current occurs. This progress allows to achieve a powerful battery (>20% of the current one) and reducing the investment cost by down size the battery system, with respect a certain reference application.

Optimized ORFB Technology with better environmental performance.

ABMS is a key innovation in order to optimize the operation and management of the HESS. ABMS is a solution for Battery Health Management, providing a full diagnostic/prognostic assessment, including early warnings, for each battery technology to enhance the maintenance and to provide updated models of each battery to allow an optimal management of the HESS with optimal dispatch of the power solicitations. This solution will also correct any information provided by the BMS on the SoH and the SoC.

Power electronics - an innovative Power converter: the novel power converter based on an interleaved configuration allowing power flow sharing and routing with the aim of optimizing components state-of-health (especially relevant for semiconductors which are one of the elements that fails the most on power converters) as well as increase on the efficiency (which is relevant for the round trip of the HESS) through the usage of novel semiconductor technology based on SiC; which is better suited for medium high power and medium-high voltage applications. In addition, such technology will help reducing the thermal losses (thus, reducing cooling requirements) which are positive for battery SOH.

Optimization and validation via HIL based Digital Twin: Given that about 80% of a issues with ESS controls are software based, the Digital Twin for HESS (DTH) technology makes it possible to lower the time necessary to size, develop, validate and pre-commission a HESS. Furthermore, a DTH enables owners
and operator to lower both CAPEX and OPEX by making the optimal decisions in different stages of the of system lifecycle, from choosing the best units and configuration of devices and sub-systems in the design phase, over virtualized interoperability testing in verification stages, to benchmarking various optimization algorithms.

Devoted method for battery-based HESS integration: A bottom-up approach which leverages the use of advanced modelling to achieve a fast apply of the technology with a high flexibility and customization capability. This is contrary to other solutions in the SoA, where a top-bottom approach, mainly focused in the high control layers, leads to weaker performance in terms of the “chemistry”.

Power Management System:
• High focus into the storage technologies, including advanced models with a continuous update during the project.
• Capability of the control system to integrate multiple chemistries in a single system with extended performance.
• Real-time performance, as most of the current EMS approaches are more focused into a schedule level or an operation in periods of minutes.
• Flexible integration of new assets, modularity and interoperability thanks to the virtualization provided by the State of Function.
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