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دانلود رایکان مقاله انگلیسی ISI با موضوع بررسی تکنولوژی های فوتوولتاییک خورشیدی

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بررسی تکنولوژی های فوتوولتاییک خورشیدی

عنوان انگلیسی مقاله:

A review of solar photovoltaic technologies

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2. Photovoltaic power generation

A photovoltaic power generation system consists of multiple components like cells, mechanical and electrical connections and mountings and means of regulating and/or modifying the electrical output. These systems are rated in peak kilowatts (kWp) which is an amount of electrical power that a system is expected to deliver when the sun is directly overhead on a clear day. A grid connected system is connected to a large independent grid which in most cases is the public electricity grid and feeds power into the grid. They vary in size from a few kWp for residential purpose to solar power stations up to tens of GWp. This is a form of decentralized electricity generation. Poponi assessed the prospects for diffusion of photovoltaic (PV) technology for electricity generation in grid-connected systems by the methodology of experience curves that is used to predict the different levels of cumulative world PV shipments required to reach the calculated break-even prices of PV systems, assuming different trends in the relationship between price and the increase in cumulative shipments [1]. Rehman et al. utilized monthly average daily global solar radiation and sunshine duration data to study the distribution of radiation and sunshine duration over Saudi Arabia and also analyzed the renewable energy production and economical evaluation of a 5 MW installed capacity photovoltaic based grid connected power plant for electricity generation [2]. Al-Hasan et al. discussed optimization of the electrical load pattern in Kuwait using grid connected PV systems as the electric load demand can be satisfied from both the photovoltaic array and the utility grid and found during the performance evaluation that the peak load matches the maximum incident solar radiation in Kuwait, which would emphasize the role of using the PV station to minimize the electrical load demand and a significant reduction in peak load can be achieved with grid connected PV systems [3].