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Modelling of the thermal behaviour of an ultracapacitor for a 42-V automotive electrical system

机译:用于42V汽车电气系统的超级电容器的热行为建模

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摘要

A three-dimensional modelling approach is used to study the effects of operating and ambient conditions on the thermal behaviour of a NESSC AP 2.7 V/3500 F ultracapacitor cell for a42-V automotive electrical system. The rate of heat generation of the ultracapacitor during charge and discharge is measured with a calorimeter. The transient temperature distribution of the ultracapacitor during cycling is obtained by using the finite element method with an implicit predictor-multicorrector algorithm. The results show that the temperature of the ultracapacitor cell increases during the first 50 cycles after which it reaches a periodic steady-state value that increases with increasing ambient temperature.
机译:三维建模方法用于研究操作和环境条件对用于42V汽车电气系统的NESSC AP 2.7 V / 3500 F超级电容器电池的热性能的影响。用量热计测量超级电容器在充电和放电期间的发热速率。超级电容器在循环过程中的瞬态温度分布是通过有限元方法和隐式预测器-多重校正器算法获得的。结果表明,超级电容器电池的温度在前50个周期内升高,此后达到一个周期性的稳态值,该值随环境温度的升高而升高。

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