Flexible Distribution Voltage System that adjusts to Equipment Operating Conditions on the Consumer Side

Abstract

A power distribution system that dynamically adjusts the distribution voltage in real time based on fluctuating physical parameters, (e.g., power, motor speed, and voltage) of the load equipment installed within consumer facilities such as factories to enhance energy efficiency is proposed in this study. The proposed system comprises a voltage-adjustment circuit and load equipment. The voltage-adjustment circuit integrates a tap-switching transformer and series-compensating inverter. The voltage-adjustment circuit controller utilizes power from the load equipment while continuously acquiring real-time operational data, including various physical parameters. Voltage-adjustment circuit optimizes energy consumption in the load equipment by sequentially regulating the effective distribution voltage. The energy-saving performance of the proposed system is experimentally validated using a mini-model with a motor load. The results confirm that the proposed flexible distribution voltage system achieves up to an 8.40% reduction in power consumption of compared to the conventional distribution voltage of 200V/50Hz.