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Super-capacitor/lead acid battery hybrid energy storage suitable for remote area power supply (raps) systems.

机译:超级电容器/铅酸电池混合储能,适用于偏远地区电源(raps)系统。

摘要

AbstractudThis paper presents the results of simulations based on real load data collected from a RAPS system in the south west of Western Australia. The load data was collected at a rate of one sample per second to capture the transient changes. The data had features of a base load suited to lead-acid batteries and transient spikes in load suited to super-capacitors. ududA model of a RAPS energy storage system including batteries and super-capacitors was built in Simulink. This model was designed to capture the major influences on battery life and performance: battery current, state of charge and battery temperature. ududSimulations were run under standard conditions of no diesel generation (solar generation only), fixed ambient temperature (25°C), fixed total energy storage of 875Ah and equal hours of daylight and darkness. ududAn optimum super-capacitor size of 65Ah capacity was identified for the conditions of the simulation. Battery temperature was found to be dominated by ambient temperature and little improvement was achieved by including super-capacitors. ududBattery life was improved by seven months from nine years and fourteen weeks to nine years and forty one weeks. ududWith the use of a 65Ah super-capacitor equivalent performance to the battery only base case can be achieved with a battery of 460Ah, approximately half the capacity of the existing batteries. ududA 450Ah battery bank costs by $3520 less than the 875Ah battery bank used in the RAPS system that was monitored. A 65Ah super-capacitor costs between $115 500 and $147 500 indicating that a reduction in price in the order of forty times is necessary before super-capacitors could be justified in a battery super-capacitor hybrid energy store.
机译:摘要 ud本文介绍了基于从西澳大利亚州西南部的RAPS系统收集的实际载荷数据得出的模拟结果。以每秒一个样本的速率收集负载数据,以捕获瞬态变化。数据具有适合铅酸电池的基本负载和适合超级电容器的负载瞬态峰值的特征。 ud ud在Simulink中建立了包括电池和超级电容器的RAPS储能系统模型。该模型旨在捕获对电池寿命和性能的主要影响:电池电流,充电状态和电池温度。模拟是在没有柴油发电(仅太阳能发电),固定的环境温度(25°C),固定的总能量存储为875Ah以及白天和黑夜均等的标准条件下进行的。对于模拟条件,确定了65Ah容量的最佳超级电容器尺寸。发现电池温度受环境温度支配,而加入超级电容器几乎没有改善。 ud ud电池寿命从九年零十四周提高了七个月,到九年零四十一周了。 460Ah的超级电池可以达到65Ah的等效性能,只有电池可以达到现有容量的一半。与受监视的RAPS系统中使用的875Ah电池组相比,450Ah电池组的成本降低了3520美元。 65Ah超级电容器的成本在115 500美元至147 500美元之间,这表明在将超级电容器用于电池超级电容器混合能量存储之前,有必要将价格降低40倍左右。

著录项

  • 作者

    Blechynden Bruce;

  • 作者单位
  • 年度 2010
  • 总页数
  • 原文格式 PDF
  • 正文语种 {"code":"en","name":"English","id":9}
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