In view of the problem of dynamic power distribution in hybrid energy storage system of batterysuper capacitor in the integrated optical storage power generation system

a kind of variable filtering time constant power distribution method of hybrid storage system based on fuzzy control is proposed.This method considers the state of charge of the super capacitor and the variation rate of the power demand of the hybrid energy storage system

uses the fuzzy control to dynamically adjust the time constant of the low-pass filter

maximizes the fast power response characteristics of the super capacitor in the transient process so to keep the battery power response more smoother

reduce the impact on the battery and improve the overall performance of the hybrid energy storage system.The simulation results show that the method can give full play to the function feature of power type of super capacitor and energy type of storage battery in accordance with the state of charge and the variation rate of power demand of super capacitor

and effectively improve the robustness of the power generation system.