Abstract
With rising pressure on energy and the environment, clean and renewable new energy sources have received a lot of attention in recent years. A hybrid energy storage system made of flywheel energy storage and battery energy storage is offered in this work as a technical way to increase the sustainable energy performance for low-carbon power grid development. In this paper, a simulation model of a hybrid flywheel-battery energy storage system based on autocoupled PID for a wind turbine-based power generation device is built in Matlab/Simulink, and the proposed control strategy of a triple full bridge topology based on autocoupled PID is simulated and verified.The results show that the hybrid flywheelbattery hybrid energy storage system can effectively reduce the amount of grid frequency variation and lower the wind turbine output power fluctuation; the autotransfer PID control strategy is used for optimization of the power distribution coefficient in the hybrid energy storage system, and it is discovered that the autotransfer PID control strategy can make the hybrid energy storage system maintain good power variation adaptation.
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