Control of Line Loss Minimization on Power Distribution System for Smart Grids

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For reducing the line loss in power distribution system, the consumers install the automatic power factor regulator. However, the ratio for installing the automatic power factor regulator is less than 50 %, and the line loss reduction is not realized. In this research, novel control of the distribution system based on the smart grid is proposed. In the proposed control, the existing automatic power factor regulators are controlled by using the node voltages and line currents in the distribution system, and the line loss caused by the reactive current can be reduced to 10 %. The effectiveness of proposed control is verified by the experiments using the laboratory prototype.