Flexibility Aggregation Perimeter for Ancillary Services in Radial Distribution Systems

The flexibility provided by prosumers is recognized as a key element for the management of electrical grids, in particular distribution changing scenario electricity generation and consumption. useful to Distribution System Operators (DSOs) strongly local, it necessary identify busses grid where can be usefully service requested DSO. For this purpose, concept perimeter adopted; defined set such that any within while operation remains secure. relevant markets; particular, aggregators, since offered single product participants markets requiring services. identification aggregation perimeters congestion-relief services radial straightforward; intended solve voltage profile problems, not easy, even grids. paper proposes method evaluation based on Load Area; help decision-makers choose compromise between technical market efficiency dimension. support services, dimension oppositely influences soundness aggregation; influence evaluated quantitatively. results two case studies show features method.