Open Access

Philipp Heeren, Johannes Rolink, Sebastian Hanna, Marie Clausen, Sebastian Rohjans

• n this paper, the main results of the research project ofVerte LeitStand in the realization of an open, modular grid control system for distribution grids on a laboratory scale are presented. The topic of interoperability plays an important role here. Ensuring interoperability, i.e. the interaction of hardware and software components from different manufacturers, involves various challenges. One of the challenges is ensuring the exchange of data between the control system components. Proposed solutions for the selection of suitable communication protocols and the implementation of a uniform data exchange are developed. The integration of external control system functionalities and services is another challenge. Here it is examined and evaluated which possibilities exist to integrate the services as standardized as possible and how an implementation can concretely look like. A third important challenge is the issue of data management. If different applications in the control system use the same data, e.g. electricity grid parameters, shared data management is a good approach. However, this can lead to problems such as data inconsistencies. In order to avoid these problems, various concepts for error-free, shared data management are developed, evaluated and implemented.