Abstract：A power smoothing control strategy in wind farm for hybrid energy storage system, on the basis of double-circuit SOC adjustment, is proposed according to the power fluctuation of wind power integration into power system. For the hybrid energy storage system installed vanadium redox flow battery and lithium battery, double-circuit SOC control is employed to guarantee the actual output power of the lithium battery and the liquid flow battery can be allocated reasonably and the state of the hybrid energy storage system can be updated in real time. The smooth requirement of active power of wind power is realized through the proposed control strategy, meanwhile, the SOC value of the lithium battery and the vanadium redox flow battery can be stably kept within a safe range, which can reduce the charge and discharge times of lithium battery effectively and protect the installed battery subsequently. The effectiveness and validity of the proposed control strategy is verified by simulation results.
王晓东, 郑帅, 刘颖明. 基于双回路SOC调节的风电场功率平滑控制策略[J]. 电气技术, 2017, 18(11): 59-63.
Wang Xiaodong, Zheng Shuai, Liu Yingming. Power Smoothing Control Strategy of Wind Farm based on Double Loop SOC Regulation. Electrical Engineering, 2017, 18(11): 59-63.
2017, Vol. 18 
