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Effective utilization of excess energy in standalone hybrid renewable energy systems for improving comfort ability and reducing cost of energy: A review and analysis

机译：在独立的混合可再生能源系统中有效利用过剩能量，以提高舒适度并降低能源成本：回顾与分析

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摘要

One of the features that characterize renewable energy sources is their variability and intermittency. Intermittency covers both the predictable and unpredictable variations of their power outputs and uncertainty in the power availability. To overcome the drawback of intermittency, special design considerations should be taken into account. These additional design considerations increases the overall cost of the renewable energy systems. Adding storage system and/or backup source to the renewable sources is one of the measures used to guarantee the continuity of power supply to the loads, and therefore improve the reliability of the renewable energy systems. The operation of renewable energy systems results in the creation of surplus energy, which is the energy generated by renewable energy systems, but is not consumed by the loads in standalone power systems. Effective utilization of this excess energy has the potential to decrease the cost of energy (CUE) production by these hybrid renewable energy systems. In this paper, a review of the literature will be carried out in order to provide further insight into the approaches suggested in the literature on how to deal with the utilization of excess energy. Furthermore, various possible configurations of hybrid systems will be analyzed in detail for the effective utilization of the excess energy produced by hybrid systems. This is done in order to evaluate the effectiveness of utilization of excess energy by various means, especially for improving the living space comfort ability and decreasing the COE. Case studies will be carried out to demonstrate the proposed configurations for the effective utilization of the excess energy, and the results will be presented. (C) 2014 Elsevier Ltd. All rights reserved.
机译：可再生能源的特征之一是可变性和间歇性。间歇性涵盖了其功率输出的可预测和不可预测的变化以及电源可用性的不确定性。为了克服间歇性的缺点，应考虑特殊的设计注意事项。这些额外的设计考虑因素增加了可再生能源系统的总体成本。在可再生能源中增加存储系统和/或备用资源是用于保证向负载供电的连续性，从而提高可再生能源系统可靠性的措施之一。可再生能源系统的运行会导致产生多余的能量，这是可再生能源系统产生的能量，但未被独立电力系统中的负载消耗。有效利用这些多余的能源有可能降低这些混合可再生能源系统的能源成本（CUE）生产。在本文中，将对文献进行回顾，以提供对文献中建议的有关如何处理多余能量利用的方法的进一步了解。此外，将详细分析混合动力系统的各种可能配置，以有效利用混合动力系统产生的多余能量。这样做是为了评估通过各种方式利用过剩能量的有效性，特别是对于改善居住空间的舒适性和降低COE。将进行案例研究，以证明为有效利用多余能量而提出的配置，并将介绍结果。 （C）2014 Elsevier Ltd.保留所有权利。

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