Coordination of active and reactive distributed resources in a smart grid

The authors present a methodology for assessing centralized control of active and reactive distributed resources in a smart distribution grid. The methodology is based on three-phase optimal power flow and is able to deal properly with unbalanced conditions and both single-phase and three-phase control resources. Single-phase resources that can be exploited by means of this approach are domestic loads, photovoltaic and distributed micro-generation. The methodology is developed on an open-source simulating environment and tested on the IEEE 123-bus Radial Distribution Feeder test case.