【摘要】 根据蓄电池与超级电容性能特点,提出了一种基于蓄电池和超级电容混合储能的协调控制策略.采用低通滤波器将波动功率分离为低频与高频,由蓄电池平抑低频部分,超级电容平抑高频部分,进一步设计电压电流双闭环协调控制策略,实现蓄电池与超级电容的分频能量吞吐.仿真结果表明混合储能系统达到了平抑风力发电功率波动,延长蓄电池使用寿命的目的.更多还原

【Abstract】 Due to the perfor-mance characteristics of battery and super capacitor,a coordinated control strategy based on hybrid energy storage of battery and super-capacitor is proposed. The fluctuating power is separated into low frequency and high frequency by low-pass filter. The low frequency part is suppressed by the battery. The high frequency part is suppressed by the super capacitor. A voltage and current double closed-loop coordination controller is further designed to realize the frequency division energy through out of the battery and the super capacitor. The simulation results show that the proposed hybrid energy storage system effectively suppresses the power fluctuation of wind power system and prolongs the service life of the battery.更多还原