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Impact of solar tracker and energy storage system on sizing of hybrid energy systems: A comparison between diesel/PV/PHS and diesel/PV/FC

机译:太阳能跟踪器和储能系统对混合能源系统施胶的影响:柴油/光伏和柴油/ PV / FC之间的比较

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Design of renewable energy-based hybrid systems has become a challenging task especially for electrification to off-grid regions. In the design problem, it is important to economically investigate utilization of energy storage systems (ESSs) and solar tracker. This paper focuses on optimal size of hybrid energy systems which make use of different types of tracking systems. For this aim, two hybrid energy systems, diesel generator/photovoltaic/pumped hydro storage (diesel/PV/PHS) and diesel generator/ photovoltaic/fuel cell (diesel/PV/FC), have been designed with respect to different tracking systems (fixed, single-axis and double axis). In order to find optimum design of the hybrid systems, two important objectives, total net present cost (TNPC) and reliability index expressed by loss of power supply probability (LPSP) are minimized in a multi-objective framework. With respect to complexity of this optimization problem, a multi-objective efficient approach is used to solve the problem. Simulation results show that compared to FC when PHS is employed as energy storage system, TNPC of the hybrid system decreases. Moreover, using a solar tracker in diesel/PV/PHS is not cost-effective in comparison with fixed PV panels. (c) 2021 Elsevier Ltd. All rights reserved.
机译:可再生能源的混合系统设计已成为一个具有挑战性的任务,特别是对于偏离栅格区域的电气化。在设计问题中,重要的是要经济地调查能量存储系统(ESS)和太阳能跟踪器的利用。本文侧重于利用不同类型的跟踪系统的混合能源系统的最佳尺寸。为此目的,已经设计了两个混合能系统,柴油发电机/光伏/泵浦水电(柴油机/ PHS)和柴油发电机/光伏/燃料电池(柴油/ PV / FC),已经相对于不同的跟踪系统(固定,单轴和双轴)。为了找到混合系统的最佳设计,在多目标框架中最小化了两个重要的目标,通过损失的电源概率(LPSP)表示的总净目的成本(TNPC)和可靠性指数。关于这种优化问题的复杂性,用于解决问题的多目标有效方法。仿真结果表明,与FC相比,当采用PHS作为储能系统时,混合系统的TNPC减少。此外,与固定的PV面板相比,在柴油/光伏/ pH中使用太阳能跟踪器并不具有成本效益。 (c)2021 elestvier有限公司保留所有权利。

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