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