基于传统储能SOC的模糊控制策略研究

Research on Fuzzy Control Strategy Based on Traditional Energy Storage SOC

为了增强分布式能源的使用能力和降低微电网中传统储能设备的容量需求,提出了一种新颖的储能装置,将传统储能电池和超级电容器相结合,形成了三种能源的混合储能系统。同时为了更好地满足微电网内的功率需求,文中提出了一种基于传统储能电池荷电状态(SOC)的模糊控制策略来调节混合储能系统的输出功率,并对超级电容器的SOC进行了优化研究。通过仿真结果可以看出,采用我们设计的等效储能装置和模糊控制器能够有效地实现系统中的有功平衡,从而改善系统的频率稳定性。

In order to enhance the utilization ability of distributed energy and reduce the capacity demand of traditional energy storage devices in microgrids,a novel energy storage device is proposed,which combines traditional energy storage batteries and supercapacitors to form a hybrid energy storage system with three types of energy sources.At the same time,in order to better meet the power demand in the microgrid,a fuzzy control strategy based on the state of charge(SOC)of the traditional energy storage battery is proposed to regulate the output power of the hybrid energy storage system,and the SOC of the supercapacitor is optimized.The simulation results show that the equivalent energy storage device and fuzzy controller designed by us can effectively achieve the active balance in the system,thereby improving the frequency stability of the system.