Algorithm for the determination of loadability boundaries of distribution

Currently, the coordination of dispersed energy resources, like domestic micro-CHP systems, Photovoltaic systems or the charging of electric vehicles is widely discussed. A major issue that has to be addressed in this context is the possibility of an overload of the public power system. In order to guarantee overload prevention, a robust mechanism is needed for making the coordination system aware of the system's loadability limits and to provide them with information for corrective measures if necessary. In this paper the authors present a reference algorithm allowing for an on-line constraint violation detection and mitigation under hard real-time constraints by predetermining the overall set of allowable grid usage patterns a-priori.