Abstract
The increasing integration of distributed renewable energy resources into the power grid calls for employment of information and communication technology, transforming the grid into a cyber-physical energy system with new options for stable and optimized control. In order to evaluate and validate new control technologies, test systems are necessary. When the future extensibility of an approach is to be tested, laboratory and field tests reach their limits. Instead, simulation-based testing is required, like co-simulation, which allows the reuse of pre-existing simulation components. However, some co-simulation approaches designed for generic applicability tend to ignore certain setup characteristics like the need for remote coupling or exchange of complex data. This paper presents a co-simulation case study with distributed, heterogeneous simulation components. Challenges are discussed and it is shown how the framework MOSAIK helps to bridge the gap between special interfacing requirements and high system usability.
Highlights
The integration of an increasing amount of information and communication technology (ICT) into the classical power grid transforms it into a cyber-physical energy system (CPES) with novel monitoring and control capabilities
Due to the special structure of the different components and the overall setup, co-simulation aspects need to be addressed that are usually not considered in ideal, generic coupling approaches
A time server module has been implemented to interact with an ICT system designed for field test applications
Summary
The integration of an increasing amount of information and communication technology (ICT) into the classical power grid transforms it into a cyber-physical energy system (CPES) with novel monitoring and control capabilities. The associated co-simulation setup, on the other hand, consists of the co-simulation framework MOSAIK and three complex simulation components that are connected to it: a virtual power plant (VPP) simulator, a power system simulation tool, and a communication and service platform (German: “Kommunikations- und Dienstleistungsplattform”, KDP). The VPP simulation provides DER schedules as output data and expects grid restriction information as input, which is used to recalculate the schedules for the time step.
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