Optimal Placement and Capacity of Distributed Generators in Medium Voltage Generic UK Network

Due to global environmental concerns, new opportunities are opening up for harnessing of resources from renewable energy. Currently, distributed generators (DG) which are based on renewable energy technologies such as solar, wind, and biomass are widely used in power systems. The presence of DG has potential to improve reliability of the network and minimise power losses. This work analyse the impact of DG in distribution networks and determine the optimum size and location of DG to reduce losses. Location and sizing of DG are challenging tasks due to an extensive number of possibilities and constraints to be considered. Therefore, the proposed optimisation method is capable to identify the optimal DG size and location considering additional load from EV charging stations. The developed optimisation algorithm is simulated in MATLAB programming using an MV generic UK network. Various case studies were implemented including single and multiple DGs connection to the network in order to reduce the losses and to maintain the voltage within statutory limits.