蓄电池充放电管理的全过程仿真研究

为了实现蓄电池不同充放电控制策略之间的切换,提出了一种基于蓄电池荷电状态(state of charge,SOC)实时监测的蓄电池充放电管理的控制方法。在考虑蓄电池的动态数学模型基础上,研究了蓄电池的SOC监测、充放电特性曲线、充放电控制电路、充放电管理策略和电池的分组管理等问题。以蓄电池的SOC作为蓄电池充、放电判断条件,实现了蓄电池进行自主充、放电管理的控制策略。利用PSCAD/EMTDC仿真软件,通过算例系统验证了蓄电池模型和充放电控制方法的正确性和有效性。研究表明,通过合理的蓄电池充、放电管理及切换,实现蓄电池充放电全过程,为蓄电池组无论作为独立电源还是在微网孤岛模式下与其他间歇性能源相配合使用均提供了一定的理论参考。

Research on whole process simulation for charging and discharging management of battery

In order to realize the switch between battery charging control strategy and discharging control strategy, a control method for charging and discharging management based on the real-time monitoring state of charge （SOC） of battery was present in this paper. Considering the dynamic mathematical model of the battery, some issues including SOC monitoring, charging and discharging characteristics, charging and discharging control circuit, charging and discharging management strategies and battery group were reearched. Considering SOC of battery as the judging condition, the self-charging and self-discharging management of battery was realized. With the PSCAD/EMTDC simulation software, the correctness and validity of model and control method of battery were verified. The simulation results show that with the reasonable charging and discharging management and switch, whole process of hattery charging and discharging is realized, and it provides theoretical reference for the battery as independent power supply or in island mode as energy storage to match the other intermittent energy.