The wind and energy storage combined system can effectively increase the penetration of wind power in the grid. And the bidirectional DC-DC converter is an important part of the energy storage system. Aiming at a multi-class structure of the bidirectional DC-DC converter topologies

this paper presents an adaptive fuzzy PI control strategy to automatically track target reference voltage and power flow in both directions. First

a working model of the triple bidirectional DC-DC converter is established by analyzing its working principle. Second

for the dual-loop structure used in the triple bidirectional DC-DC converter

adaptive fuzzy PI control structure and corresponding fuzzy controller are designed. Third

examples are simulated with the software Simulink to verify that the proposed adaptive fuzzy PI controller can effectively control the charge and discharge processes of the battery

and meet the dynamic and static indicators better. This adaptive fuzzy PI control strategy is applicable to electric power storage system.