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Optimized modeling of Ni-MH batteries primarily based on Taguchi approach and evaluation of used Ni-MH batteries

机译:主要基于田口方法和对二手镍氢电池的评估,优化了镍氢电池的建模

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This paper aims to generate an optimized model of the Ni-MH battery based on the Taguchi method and it further aims to evaluate used Ni-MH batteries that served in hybrid electric vehicles and electric vehicles. The status of twelve used Ni-MH batteries is studied to determine their usefulness after their life cycle in automotive applications. The status of used batteries is evaluated by investigating their state of charge, remaining useful life, and degradation in performance. Accordingly, the tested batteries are classified into four categories and they are proposed to serve in different applications. The novelty of the work lies in modeling used Ni-MH hybrid batteries by extracting a model that can define and calculate the battery voltage during the discharging phase, and it can study the influence of design parameters under certain conditions regardless of whether the battery is brand-new or used. Therefore, a second-order model is used to represent the used battery where an explicit mathematical formula expresses the discharge voltage of the new Ni-MH battery at different discharge pulse times, optimized later utilizing the Taguchi optimization method. Finally, the discharge voltage obtained using the developed model for different batteries is benchmarked against the actual measured discharge voltage by calculating the root mean square error.
机译:本文旨在基于Taguchi方法生成Ni-MH电池的优化模型,并进一步评估用于混合动力电动汽车和电动汽车的Ni-MH电池。研究了十二个旧镍氢电池的状态,以确定其在汽车应用中的生命周期后的有用性。废旧电池的状态通过调查其充电状态,剩余使用寿命和性能下降来评估。因此,被测试的电池被分为四类,并且被提议用于不同的应用。这项工作的新颖之处在于,通过提取一个可以定义和计算放电阶段电池电压的模型,可以对旧的镍氢混合电池建模,并且可以研究在某些条件下设计参数的影响,无论电池是否为品牌电池。 -全新或二手。因此,使用二阶模型表示用过的电池,其中一个明确的数学公式表示新的镍氢电池在不同的放电脉冲时间下的放电电压,随后使用田口优化方法对其进行优化。最后,通过计算均方根误差,使用开发的模型为不同电池获得的放电电压与实际测得的放电电压进行基准比较。

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