PROJECT TITLE :

Voltage security in AC microgrids: a power flow-based approach considering droop-controlled inverters

ABSTRACT:

This study deals with the problem of voltage security in microgrids. In general, voltage security is a problem for Power Systems, where the lack of reactive power is a concern. For microgrids a complexity is imposed, since frequency and voltage level deviations may occur by the operation of droop-controlled inverters. This study incorporates the load margin calculation into a microgrid structure. For this purpose, a special power flow program is developed in order to think about the results of the droop-controlled inverters. Simulation results are obtained with the help of an islanded distribution system with only generators coupled by droop-controlled inverters, therefore the proposed methodology could be tested and discussed.