Integrated PV Capacity Firming and Energy Time Shift Battery Energy Storage Management Using Energy-Oriented Optimization

In this paper, we propose a complete active-power-management scheme for the control of battery energy-storage systems (BESSs) for two main applications: 1) photovoltaic (PV) capacity firming and 2) energy time shift (ETS). In the proposed approach, first two control algorithms are designed to provide active-power set points to BESS for the above applications. Then, an optimization routine for integrating these controllers is designed. The proposed approach uses an energy-conservation method to integrate these two applications of energy-storage system. The designed algorithm was tested on a transient simulation platform and then implemented on a 720-node actual power distribution feeder. The main advantage of the proposed method is that the algorithm can be used to optimize multiple functions and perform simultaneous control of BESS.