A Macro-Consistent Coordinated Control Strategy Based on Large-Capacity Flywheel Energy Storage Array

Considering the energy storage and fast response characteristics of flywheels, flexibility transformation of flywheel energy storage array system (FESAS) and optimal power allocation. This paper proposes a macro-consistent coordinated control strategy based on a large-capacity flywheel energy storage array. Based on the mind of reducing the times of flywheel energy storage array mobilizations and adapting to power distribution, Firstly, dynamic group selection control for flywheel array, FESAS preferentially selects power-matched array groups for charging and discharging according to power allocation instructions. Secondly, the exponential relationship between SOC and specific power function is introduced into the flywheel unit, and the SOC difference of the flywheel unit in the array is gradually reduced, making the overall flywheel energy storage array gradually become macroscopic during charging and discharging. Finally, Simulink software is adopted to build the array model to prove the feasibility and efficacy of the proposed scheme.