Study on the charging and discharging control strategy of battery and super capacitor

摘要

For the unstable output power of off-grid wind power system, Extensive use of pulsating power loads and the time-varying of user's demand, single battery energy storage have been unable to meet the demand. A charge discharge control strategy is proposed based on the research on the charging and discharging of battery-ultra-capacitor hybrid energy storage system combined with some characteristics of the off-grid wind power system. Finally, the Simulink simulation model was built to verify the superiority of the hybrid energy storage device and the correctness of the control strategy.