Periodic Reporting for period 1 - HyFlow (HyFlow: Development of a sustainable hybrid storage system based on high power vanadium redox flow battery and supercapacitor – technology)
Période du rapport: 2020-11-01 au 2022-04-30
Advanced management systems for both components, are the core control mechanisms for the operating and safety concepts of the HESS. On the one hand, both storage components, the HP-VRFB and the SC, require adaptable control strategies to meet the energy demand while maintaining safety operation modes. On the other hand, the Energy Management system (EMS) controls the complete HESS taking into account the application scenario. Thus, the EMS predicts all power demands and adapts the power flow between the components. Discrete simulation models of all components verified with real application data are one essential part of the HyFlow strategy. Up to now, all components can be simulated with a simulation error of less than 5 %.
Moreover, the consortium defined the layout for both the lab-scale (5kW) as well as the industry-scale (300kW) demonstrator. Up to now, the electrical layout of the lab-scale demonstrator give first indications on potential efficiency improvements reduced installed converter power and adaptable communication between the components. The demonstrators will be installed to test the aforementioned components, their performance and control algorithms as well as the interaction of the complete HESS. The consortium defined four different load scenarios. High power peak (1) and weak distributions grids (2) are suitable application cases. Typical applications include different scenarios, where SC or batteries are already used, and which could benefit from an additional energy component to make the system more efficient or the application of renewable energy more useful. Moreover, the HESS can meet the flexible requirements of uninterruptible power supply (3) for sensitive infrastructure, e.g. telecommunication, and momentary reserve (4). The HESS can deliver a more adjusted, optimized and compact storage system for these applications. The load data evaluation lead to a first definition of component roles in HESS. In general, the HESS will be able to cover time scales from milliseconds up to several hours.