Coordinated output control of multiple distributed generation schemes

Candidate strategies for the coordinated output control of multiple distributed generation (DG) schemes are presented. The proposed strategies are underpinned by power flow sensitivity factors and allow real-time knowledge of power system thermal ratings to be utilised. This could be of value in situations where distribution network power flows require management as a result of DG proliferation. Through off-line open-loop simulations, using historical data from a section of the UK distribution network, the candidate strategies are evaluated against a benchmark control solution in terms of annual energy yields, component losses and voltages. Furthermore, the individual generator annual energy yields and generator-apportioned losses are used to assess the net present values of candidate control strategies to DG developers.