Reactive power scheduler for voltage regulation of distributed energy systems

A new reactive power scheduler control algorithm for the distributed voltage regulation with PQ inverters is proposed in this research. An elegant approach to achieve voltage regulation in utility grid is proposed through appropriate control of the renewable energy systems. PQ inverter capable of producing the reactive power is used to either achieve local voltage regulation or produce the reactive power commanded from the outer voltage regulator in the upper hierarchy of the grid management system. The proposed PQ scheduler and PQ inverters will work harmoniously in the local substation with minimum communication interface. The proposed control techniques achieve efficient utilization of the PQ inverters with maximum efficiency. The proposed energy network and the control algorithms are modeled at the system level to verify the effectiveness of the proposed system architecture.