Distribution Grid Dynamics

Investigation of distribution network dynamics and control strategies

In addition to simulation of scenarios, a suitable laboratory environment is necessary in order to investigate the dynamic behavior of electrical distribution networks and develop innovative operation and control concepts.

On the one hand, the increasing integration of decentralized generation units alters, the dynamic behavior of distribution networks. On the other hand, it enables network operators to employ novel system-supportive network operation and control concepts. For instance, the intentional temporary island operation of distribution network structures, to supply the population and critical infrastructures during a prolonged failure of the higher-level network layer, becomes conceivable in the future. To ensure stable operation, the testing and development of innovative network and plant control concepts (e.g., network-forming regulations) are necessary.

The experimental network with medium and low voltage levels, can be operated in various configurations (e.g., parallel to the public grid or in island mode) and topologies to investigate these concepts. Power electronic inverters can be used as feed-in units, which can either comply with the grid connection requirements or be programmed according to specific needs. Additionally, a synchronous generator can be connected to the experimental network. The network includes both passive load banks and active loads such as electric vehicle charging stations.