29-31 Oct 2019 Nantes (France)
Hosting capacity of distribution networks for offshore renewables
Sam Harrison  1, 2@  
1 : Department of Electronic and Electrical Engineering [University of Strathclyde]
2 : University of Edinburgh

Renewable generation connected at the distribution level poses several threats to the network. Passive control is incapable of managing the issues associated with low demand and high generation and the connection of distributed generation is constrained because of these potentially rare events. Active network management and hybrid generation provide options for a network operator to minimise technical constraints and increase the effective use of the network. An AC OPF is solved to find the maximum capacity of generation that can be connected to a distribution network in Orkney under different conditions: the number and type of resource available to the network are varied, as are the number and type of control schemes. Voltage limits, which constrain capacity most regularly, are controlled most effectively by co-ordinated voltage control. Tidal+wave, tidal+wind and tidal+wave+wind hybrid generation configurations offer increased capacity and energy delivery relative to single generation networks when the network uses active output control. The combination of active network management and complementary hybrid generation (where the two generation profiles maxima rarely co-occur with each other and with the demand minimum) makes the best use of the network components.


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