Optimal allocation of vanadium redox flow battery energy storage systems in active distribution networks considering multiple operation strategies

Summary This paper aims at specifying the optimal allocation of vanadium redox flow battery (VRB) energy storage systems (ESS) for active distribution networks (ADNs). Correspondingly, the appropriate operation strategy and the rated capacity and rated power of VRB ESS allocation are obtained. The dynamic characteristics of the external working performance of VRB are analyzed in this paper to accurately describe the operation condition of VRB. Then, A variety of operation strategies considering multiple scenarios are proposed to constrain the working state of VRB ESS. In addition, the comprehensive operation benefits are described quantitatively, to determine the optimal allocation of ESS by comparing the operation benefits. Finally, the proposed optimal allocation method was validated and tested by experimental field data of ADNs, and the optimal allocations under different operation strategies are compared, selecting the appropriate operation strategy can improve the benefits by 95%, also the consumption and the operation benefits will increase by 230% and 190% when double the capacity that can be learned from influence analysis.