| Summary: | The high proportion of renewable energy access and randomness of load side has resulted in several operational challenges for conventional power systems. Firstly, this paper proposes the concept of a flexible energy storage power station (FESPS) on the basis of an energy-sharing concept, which offers the dual functions of power flow regulation and energy storage. Moreover, the real-time application scenarios, operation, and implementation process for the FESPS have been analyzed herein. Subsequently, a method involving a bilevel optimization model was adopted: by replacing the original energy storage capacity at each end of the source, grid, and load with the FESPS, the energy storage capacity was fully released. Finally, a case study was performed to verify that the proposed FESPS based on the energy-sharing concept can effectively promote the on-site consumption of renewable energy, reduce the configuration capacity of energy storage equipment, and realize the function of energy storage/reuse. Notably, the application of FESPS in different application scenarios of the power grid is conducive to promoting the construction of new power systems. Configuration capacity of FESPS is only 70% of that of conventional power stations featuring shared energy storage. © 2022 The Author(s)
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