铅酸蓄电池放电特性研究

Discharge Characteristics of lead-acid batteries

电动汽车具有低污染、低排放、低能耗、低噪声、高效率等优点,在环境保护和新能源利用等方面具有无可比拟的优势,是解决能源危机和环境污染问题较为有效的途径。蓄电池作为电动汽车的动力源,直接影响着电动汽车的动力性和经济性,因此本文针对应用最普遍、技术最成熟的铅酸蓄电池放电特性进行研究。本文首先对铅酸蓄电池的放电原理进行研究,建立了铅酸蓄电池放电模型,基于蓄电池综合测试系统进行了不同放电倍率下的放电试验,最后应用归一化数学方法建立了蓄电池放电试验模型,获得了蓄电池端电压与SOC的关系曲线,为蓄电池的进一步研究奠定了试验基础和理论模型。

Electric cars have low pollution, low emission, low energy consumption, low noise, high efficiency and other advantages, such as environmental protection and new energy utilization has unparalleled advantages, which is a effective way to solve the energy crisis and environmental pollution problems. Battery as a power source for electric vehicles, directly affect electric vehicles＇ power and economy. And in this paper, the most mature technology lead-acid battery discharge characteristics were studied. Firstly, the lead-acid battery discharge principle of research, the establishment of lead-acid batteries discharge model, integrated test system based on the battery discharge rate under different discharge test, the final application of normalization method to establish a mathematical model of the battery discharge test to obtain the battery terminal voltage and the SOC curve for battery tests laid the foundation for further studies and theoretical models.