Charge and discharge characteristics of Ni/MH batteries are investigated with experiments. During battery’s working, the voltage, capacity, temperature and internal resistance were recorded, corresponding curves were...Charge and discharge characteristics of Ni/MH batteries are investigated with experiments. During battery’s working, the voltage, capacity, temperature and internal resistance were recorded, corresponding curves were depicted. Variations of the aforementioned four parameters are differently obvious. Ending criteria of charge and discharge of Ni/MH batteries are discussed on the basis of the curves. Voltage, capacity and temperature of a battery can be used as ending criteria during charge. When discharge takes place, voltage, capacity and internal resistance can be chosen as ending criteria. As a whole, capacity is more suitable for being used as ending criteria of charge and discharge than the other three parameters. At last, the capacity of a battery is recommended to be ending criteria of charge and discharge. The conclusions will provide references to different capacity Ni/MH batteries for electric vehicles.展开更多
电动汽车是一种分散式的储能装置,基于电动汽车-电网互动技术V2G(vehicle to grid),合理的调度策略可以激发其较多的潜在价值。首先具体分析每一项潜在价值,建立用户侧电动汽车经济效益评估模型;然后应用粒子群算法,以经济效益最大为目...电动汽车是一种分散式的储能装置,基于电动汽车-电网互动技术V2G(vehicle to grid),合理的调度策略可以激发其较多的潜在价值。首先具体分析每一项潜在价值,建立用户侧电动汽车经济效益评估模型;然后应用粒子群算法,以经济效益最大为目标函数,在不增加电池充放电循环次数的前提下,利用电动汽车支持用户高峰用电并提高供电的可靠性,得到电动汽车各时段的放电功率。算例结果证明了该模型和控制策略的有效性。展开更多
文摘Charge and discharge characteristics of Ni/MH batteries are investigated with experiments. During battery’s working, the voltage, capacity, temperature and internal resistance were recorded, corresponding curves were depicted. Variations of the aforementioned four parameters are differently obvious. Ending criteria of charge and discharge of Ni/MH batteries are discussed on the basis of the curves. Voltage, capacity and temperature of a battery can be used as ending criteria during charge. When discharge takes place, voltage, capacity and internal resistance can be chosen as ending criteria. As a whole, capacity is more suitable for being used as ending criteria of charge and discharge than the other three parameters. At last, the capacity of a battery is recommended to be ending criteria of charge and discharge. The conclusions will provide references to different capacity Ni/MH batteries for electric vehicles.
文摘电动汽车是一种分散式的储能装置,基于电动汽车-电网互动技术V2G(vehicle to grid),合理的调度策略可以激发其较多的潜在价值。首先具体分析每一项潜在价值,建立用户侧电动汽车经济效益评估模型;然后应用粒子群算法,以经济效益最大为目标函数,在不增加电池充放电循环次数的前提下,利用电动汽车支持用户高峰用电并提高供电的可靠性,得到电动汽车各时段的放电功率。算例结果证明了该模型和控制策略的有效性。
