Improving long-term operation of power sources in off-grid hybrid systems based on renewable energy, hydrogen and battery
Improving long-term operation of power sources in off-grid hybrid systems based on renewable energy, hydrogen and battery
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DOI：
10.1016/j.jpowsour.2014.04.118
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发表时间：
2014-11
影响因子：
9.2
通讯作者：
P. García;J. P. Torreglosa;L. Fernández;F. Jurado
中科院分区：
文献类型：
--
作者：
P. García;J. P. Torreglosa;L. Fernández;F. Jurado
本文提出了两种新的小时能量监控（ESC），以改善长期运行的离网混合动力系统（HS）集成可再生能源（风力涡轮机和光伏太阳能电池板），氢气系统（燃料电池，氢气罐和电解槽）和电池。第一个ESC试图提高HS提供的功率以及存储在电池和/或氢气罐中的功率，而第二个ESC试图在HS的预期寿命（25年）内最大限度地减少所需元件（电池，燃料电池和电解槽）的数量。此外，在两种ESC中，电池荷电状态（SOC）和氢罐水平被控制并保持在最佳操作裕度之间。最后，控制之间的比较研究进行了模型的市售组件中使用的HS在这项工作中的研究。这些ESC还与第三ESC进行了比较，第三ESC已经由作者发表，并且基于降低能量存储装置的利用成本。对比研究证明了ESC的正确性能和它们之间的差异。
This paper presents two novel hourly energy supervisory controls (ESC) for improving long-term operation of off-grid hybrid systems (HS) integrating renewable energy sources (wind turbine and photovoltaic solar panels), hydrogen system (fuel cell, hydrogen tank and electrolyzer) and battery. The first ESC tries to improve the power supplied by the HS and the power stored in the battery and/or in the hydrogen tank, whereas the second one tries to minimize the number of needed elements (batteries, fuel cells and electrolyzers) throughout the expected life of the HS (25 years). Moreover, in both ESC, the battery state-of-charge (SOC) and the hydrogen tank level are controlled and maintained between optimum operating margins. Finally, a comparative study between the controls is carried out by models of the commercially available components used in the HS under study in this work. These ESC are also compared with a third ESC, already published by the authors, and based on reducing the utilization costs of the energy storage devices. The comparative study proves the right performance of the ESC and their differences.