Impact of Multiple Battery Energy Storage System Strategies on Energy Loss of Active Distribution Network

Abstract

The implementation of grid energy storage technologies is essential to maximize the absorption of renewable energy. The operation of distribution network with multiple distributed energy resources is complicated. Therefore, this article proposes different optimal operational strategies for battery energy storage system (BESS) in coordination with wind based distributed generation for distribution network. The BESS charging and discharging schedules for all strategies are subjected to the network operational constraints such as node voltage limit, feeder current limit and nodal power balance etc. The improved genetic algorithm is developed to evaluate the impact of different operational strategies on the energy loss of distribution network. The validation of economic benefits in terms of operation and electricity consumption cost is also performed. The suggested strategies are investigated on the standard 33-bus distribution network. The results indicate that optimal operation of BESS can reduce the energy loss and also increase the economic benefits for the distribution system.