共查询到19条相似文献,搜索用时 171 毫秒
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对锂离子电池管理系统充电策略与温度的关系进行了研究。在介绍锂离子电池特性的前提下,对锂离子电池的保护方法进行了阐述。根据锂离子电池的保护方法,对其充电策略进行了阐述,并研究了温度对充电策略的影响,较好地阐释了锂离子电池管理系统中充电策略的选取和温度控制对锂离子电池保护的重要性,为具体电池管理系统的研究与开发提供了一定的理论基础和思路。 相似文献
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分析了锂离子电池的产业现状和影响动力锂离子电池推广应用的主要因素;展望了动力锂离子电池的发展趋势,认为性能比较因素、低碳经济、环境保护的社会需要以及强劲的市场需求将推动动力锂离子电池高速发展;探讨了动力锂离子电池发展的技术路线。 相似文献
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从锂离子电池模型的研究与优化入手,以自主设计的电池SOC仿真系统模型和硬件实验平台为基础,分析锂离子电池SOC预估算法中的粗差影响因素,建立一种新型基于抗差无迹Kalman滤波(UKF)的锂离子电池SOC预估方法.该方法将开路-AH法与抗差UKF估计理论相结合,克服传统估算方法无法消除累积误差的缺点.对照实验结果表明,新算法能够提高动力储能锂离子电池的SOC量测过程中的预估精度,对于促进动力储能锂离子电池的推广,提高动力储能锂离子电池组的能量储存能力、利用率和循环寿命有着重要的科学意义. 相似文献
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75 Ah锂离子蓄电池作为IGSO卫星储能电池得到在轨应用,数据表明两组蓄电池在轨性能一致性高,单翼蓄电池组内22串电池的电压离散度小于20 m V,蓄电池温度梯度小于3.5℃,一个长光照期内,蓄电池荷电态保持在70%~80%,进行补充充电3次。蓄电池在轨实践表明蓄电池设计合理,性能稳定可靠,在轨管理方法合理有效。 相似文献
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Takashi Ogihara Shigenobu Yamanaka 《IEEJ Transactions on Electrical and Electronic Engineering》2009,4(5):685-686
Lithium ion battery was applied to the running of variable voltage variable frequency (VVVF) inverter-type railcar. A 15 kWh of Mn-type lithium ion battery was used. The relation between running time and voltage, current and integrating watt was investigated. The running test was also carried out using VVVF inverter-type railcar to investigate charge performance due to regenerative energy. Lithium ion battery module was quickly charged for three times at rate of 4.68 C by regenerative braking system. It was estimated that the effect of energy saving was about 22% by the charge of lithium ion battery from regenerative energy. Copyright © 2009 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc. 相似文献
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We evaluate performance of lithium‐ion batteries on the small electric bus, conducting tests of cell and battery pack using discharge/charge machine. We suggest the test item on distinction between good and bad of a battery. In the discharge/charge cycle tests of cell at environmental temperature (25 °C), the relative capacity was 60% at 10,000 cycles. In the discharge capacity test of battery packs on the small electric bus, the relative capacity maintained more than 90% in progress for approximately 900 days. Finally, based on these results, we analyzed about influence factor on a battery discharge capacity. 相似文献
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针对新能源汽车动力锂电池组的不一致性问题,较多研究基于电池组不一致性的外部表现建立控制策略,如电压均衡、SOC(state of charge)均衡等。通过分析电池组产生不一致性的根本原因,结合电池内、外部影响因素的耦合关系,提出了基于老化率和SOC的双目标混合均衡控制方法,同时实现了老化和SOC的均衡。老化均衡实现了各单体电池在不同工况下的寿命衰减程度达到一致,使得电池的不一致性从根源上得到改善;SOC均衡进一步避免了不一致性的扩大,最大限度的发挥动力电池的性能。最后,以4个单体串联的电池组为例在Matlab/Simulink中搭建了均衡电路仿真模型,通过与单目标SOC均衡比较,验证了所提均衡方法的有效性。 相似文献
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Hironori Ozawa Takashi Ogihara 《IEEJ Transactions on Electrical and Electronic Engineering》2008,3(3):360-362
The basic specification of lithium ion battery‐type tramcar was established using DC600V‐type tramcar with a weight of 40 t. Forty five kilo Watt hour of manganese‐type lithium ion battery was used. The running test was carried out for the first time in Japan in the business line. The relation between running time and voltage, current and integrating watt was investigated in detail. The tramcar was run when the lithium ion battery module was discharged between 660 and 480 V. On one charge, the tramcar could run for about 25 km. The mileage of contactwire‐less tramcar improved two times that of tramcar. The running performance of contactwire‐less tramcar was equivalent to the tramcar. Copyright © 2008 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc. 相似文献