A Modified Q??v Droop Control For Accurate Reactive Power Sharing In Distributed Generation Microgrid

In this project, a droop control technology concept is used in distributed resources interface converters, to get an autonomous power sharing among them. It improves reliability and reduces complexity. However, the reactive power sharing accuracy of the conventional Q − V droop method can be degraded due to its dependence on the line impedances. The Q − ?V droop control method was proposed to reduce the influence of line impedance. The reactive power sharing accuracy is improved but still affected by the ?V restoration operation. So, a modified ?V restoration mechanism is proposed and influence on the power sharing is theoretically explained and analyzed. Simulation results are presented to verify the proposed method.