Energy Storage Sizing to Improve the Distribution Line Performance

This paper presents a sizing methodology and optimal operating strategy for a battery energy storage system (BESS) to improve the operating efficiency of distributed networks. The alternate solution to network reinforcement is given by providing the optimal energy storage device. The targeted issues of loss reduction and possible local voltage control are investigated. The relation of feeder losses with requirements of the energy storage requirements are presented through mathematical modeling with actual distribution network parameters. This investigation is carried out with different types of the feeders viz. urban, rural and industrial. The case studies are presented with actual site data obtained from the Maharashtra State Distribution Company of India.