By configuring energy storage, the wind–power and photovoltaic power output volatility can be effectively suppressed by the wind–power and photovoltaic joint power generation system, which can be flexibly adjusted and can send out excess power when the system output is. . By configuring energy storage, the wind–power and photovoltaic power output volatility can be effectively suppressed by the wind–power and photovoltaic joint power generation system, which can be flexibly adjusted and can send out excess power when the system output is. . Electricity storage can shift wind energy from periods of low demand to peak times, to smooth fluctuations in output, and to provide resilience services during periods of low resource adequacy. Although interconnecting and coordinating wind energy and energy storage is not a new concept, the. . In order to improve the operation reliability and new energy consumption rate of the combined wind–solar storage system, an optimal allocation method for the capacity of the energy storage system (ESS) based on the improved sand cat swarm optimization algorithm is proposed. First, based on the. . This project was funded by the “Xi'an University of Architecture and Technology SSRT (Project Approval No. In this paper, a cell balancing control strategy based on bidirectional DC/DC converter (BDC) and Buck-Boost topology is proposed to improve the stability and efficiency of. .