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用自组织图方法选择电动车电池堆的锂电池(英文) 被引量:8
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作者 Paolo Raspa Leonardo Frinconi +5 位作者 Adriano Mancini Matteo Cavalletti Sauro Longhi Luca Fulimeni Paolo Bellesi Roberto Isidori 《汽车安全与节能学报》 CAS 2011年第2期157-164,共8页
电动车储存系统的一个挑战性问题是如何有效使用多层锂电池。由于产品的限制,在使用中会使电池不平衡,从而降低了电池堆的可用电量。为了生成均匀的电池堆,运用自组织图神经网络方法(SOM),开发了一种对于同源电池的选择与分类的方法。在... 电动车储存系统的一个挑战性问题是如何有效使用多层锂电池。由于产品的限制,在使用中会使电池不平衡,从而降低了电池堆的可用电量。为了生成均匀的电池堆,运用自组织图神经网络方法(SOM),开发了一种对于同源电池的选择与分类的方法。在FAAM的实验室中,搜集了测试过的LiFePO4电池的实验数据。选择中考虑的实验数据和辨识特征有:放电电压、开路电压、总容量,以及Randle等效电路模式得来的辨识参数。以每一组备选电池的充电状态(SOV)作为聚群判据,以便找到能给出电池均匀性最好结果的方法。模拟中考察了实验的电动车负荷剖面。结果表明:相比于随机的选择,在电池堆平衡的条件下,本文选用的所有方法都能使SOV变量大幅降低。基于容量和放电电压的方法给出了其中的最佳结果。 展开更多
关键词 电动车 电池选择 聚群 锂电池分类 自组织图(SOM) 神经网络方法
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Workshops of the Paulista Company in Jundiai, Sao Paulo: A Threatened Railway Heritage
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作者 Antonio Soukef Junior 《Journal of Civil Engineering and Architecture》 2016年第6期714-725,共12页
The workshops built by the Companhia Paulista de Estradas de Ferro in Jundiai can be considered among the most significant Brazilian railway assets, both for their aesthetic and deployment qualities, and for the indus... The workshops built by the Companhia Paulista de Estradas de Ferro in Jundiai can be considered among the most significant Brazilian railway assets, both for their aesthetic and deployment qualities, and for the industrial activities carried out on the premises, since their spaces preserve the memory of the work of generations of railway personnel who performed their various functions there between 1893--the year they opened, and 1990 when they were permanently decommissioned. This complex, during its almost 100 years of operation, has undergone significant modifications and enhancements mainly due to technological changes driven by the replacement of steam traction by electric traction, and then by diesel-electric traction. Despite this, the complex maintained an impressive architectural consistency. Unfortunately, most of the buildings of this complex are unused and in disrepair, being the target of invasions, vandalism and theft of materials that if not stopped will cause irreparable damage to its structure and to the local ambience. The question that appears most urgent, therefore, is to seek ways to repossess this group of workshops in order to meet the current demands of urban development without losing the characteristics which form its architectural and urban identity in a city in accelerated mutation. 展开更多
关键词 Railway heritage urban development preservation.
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