Software requirements for interoperable and standard-based power system modeling tools

Abstract

Standardization processes and collaborative tools are becoming essential for interoperable modeling and simulation of power systems. The implementation of new electrical network codes at European level requires the development of a common grid modeling exchange standard. Consequently, this requires the development of dynamic models which expose their individual and integrated physical behavior in simulations used in trade-off analyses. These analyses are of particularly importance due to the increasing number of renewable variable energy sources connected to the grid. The development of such models leads to the development of new requirements for power system studies, while ensuring interoperability, security, and privacy of the models. The use of open standards for modeling and simulation could allow the export of all the necessary model information and physical behavior to guarantee consistency between software vendors and stakeholders. This work presents a formalization of functional and non-functional requirements for new standard-compliant software tools using the System Modeling Language (SysML). This work also presents the implementation of these requirements using available information modeling and equation-based modeling standards, illustrating that standards can be combined for model exchange and co-simulation by the application of the FMI standard.