D5.2 & D5.3 - VPP system architecture and implementation of regional & interregional services

The research project REgions investigates the provision of regional services in the electricity sector using renewable energies. For this purpose, use cases (UC) were defined to demonstrate grid congestion management, reactive power provision and interregional collateralization of balancing reserve during grid congestion. The renewable energy plants are integrated into Fraunhofer IEE's virtual power plant (VPP) enabling central control of the plants. For the demonstration of the defined use cases, the IEE.vpp has to be upgraded in various respects. This includes creating the system architecture of the VPP for the different demontration regions in France and Germany, integrating the plants and other components (such as power forecasts) into the VPP, and adding new functionalities to the VPP. Among the new functionalities is "Smart Dispatch", which not only allows the task of a plant to be distributed to other plants in the event of its failure or the failure of the communication channel, but also makes it possible to specify a ramping mode. Moreover, the web interface of the IEE.vpps has been extended as a new functionality to allow the user to monitor the plant behavior, to test the plant control and to perform the Smart Dispatch (including ramp control).
New functionalities were also developed on the plant side. The PV plants used were upgraded to determine the available active power (AAP) using SCADA, the controller and weather measurement data. The PV plants were also adapted to the requirements of the project in terms of the command chain and the security standards for plant control.