【摘要】 混合储能技术在微电网中具有广泛的应用。根据混合储能系统的连接方式,提出了一种基于锂电池/超级电容混合储能的分层协调控制策略。该控制策略实现了混合储能系统内外层的功率平衡,其中外层控制策略平抑直流母线电压的波动,内层控制策略优化外层储能设备的SOC (state of charge),防止储能设备的过充和过放。在MATLAB/S imulink中搭建混合储能系统的仿真模型,仿真结果验证了所提控制策略的有效性。更多还原

【Abstract】 Hybrid energy storage technology has a wide range of applications in microgrid. According to the connection mode of hybrid energy storage system, this paper proposed a coordinated control strategy based on lithium battery/super capacitor hybrid energy storage to balance the inner and outer power of the hybrid energy storage system, wherein the outer control strategy stabilized the fluctuation of the DC bus voltage, and the inner control strategy optimized the SOC state of the outer energy storage device to prevent overcharging and overdischarging of the energy storage device. The simulation model of hybrid energy storage system was built in MATLAB/Simulink. The simulation results verify the effectiveness of the proposed control strategy.更多还原