Unbalanced load flow for microgrids considering droop method

Abstract

Power systems are under a huge transformation because of the growing penetration of renewable sources. In this sense, microgrids may become a reality, since local sources and manageable loads and batteries may help the system to be self-sustainable under emergency conditions. This paper proposes a three phase power flow for microgrids which considers the droop method. Hence, frequency and voltage level at the sources may vary. The proposed approach is tested with the help of a modified IEEE 34 test system.