Optimum allocation of BESS for power quality improvement. A comparative study

Battery Energy Storage Systems (BESS) are modular and flexible assets that can provide a different set of services. One of these services is power quality improvement. BESS provides support during network contingencies, reducing the outage duration and the number of customers affected by the outage. The effectiveness of this service depends on the size and the location of the BESS in relation to the location of the failure. This paper presents a methodology to determine the optimal location of BESS for continuity of supply improvement and for facilitating the integration of renewable energy and distributed energy resources. The methodology is applied to a real network case in order to compare the optimal location of BESS in the transmission grid or in the distribution grid.