Towards distribution energy management systems: Maximising renewable DG

Actively managing network constraints in real time may allow Distribution Network Operators (DNOs) to connect greater volumes of renewable Distributed Generation (DG) without the need of expensive reinforcements. Here, a distribution Energy Management System (EMS) is proposed to manage voltages and congestion issues whilst allowing maximum harvesting of renewable resources. This is based on the optimal control of voltage regulation devices and DG power factor, applying DG curtailment as last resort. The proposed EMS is applied to a real-life UK MV network from the North West of England. Results show that effectiveness of the approach in managing the network within voltage and thermal limits whilst minimizing DG curtailment.