Impact and performance efficiency analysis of grid-tied solar photovoltaic system based on installation site environmental factors

IF 4 4区环境科学与生态学 Q2 ENVIRONMENTAL STUDIES

Energy & Environment Pub Date : 2022-06-08 DOI:10.1177/0958305X221106618

Saeed Iqbal, Shahid Nawaz Khan, M. Sajid, Jawad Khan, Y. Ayaz, A. Waqas

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引用次数: 8

Abstract

The performance of solar photovoltaic systems tends to decline if the operating conditions change from the nominal operating cell temperature due to environmental factors. The major factors include temperature and humidity variations, which cause thermal losses and open-circuit voltage drops in photovoltaic panels. This study investigates the correlations between solar photovoltaic performance and environmental factors by quantifying the real-time variables including temperature, humidity, dewpoint temperature, and heat index. Furthermore, the study investigates the difference between real-time measured and theoretically calculated temperature values with the help of weather station data to investigate the impact of temperature difference on the overall percentage power loss of the systems. The panels were installed at three distinct sites (rooftop, parking shed, and ground-mounted) connected to the same grid-tied system. Results reveal that the photovoltaic panel temperature has an inverse relation with the dew temperature and the humidity of the surrounding environment. The heat index value was found slightly less at the peak solar hours during the 24 h cycle of the measurement. The difference and relationship between temperature and humidity are measured and losses are highlighted based on the instantaneous occurrence of variables. Based on a difference between measured and calculated temperature values, results reveal that PV systems faced 27.95%, 5.41%, and 0.82% power losses for ground, roof, and parking installed PV systems, respectively.

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基于安装现场环境因素的并网太阳能光伏系统影响及性能效率分析

由于环境因素的影响，太阳能光伏系统的工作条件从标称工作电池温度变化后，其性能有下降的趋势。主要因素包括温度和湿度的变化，这会导致光伏板的热损失和开路电压下降。本研究通过量化温度、湿度、露点温度和热指数等实时变量，探讨太阳能光伏性能与环境因素的相关性。此外，在气象站数据的帮助下，研究实时测量和理论计算的温度值之间的差异，以研究温差对系统总体功率损耗百分比的影响。这些面板安装在三个不同的地点(屋顶、停车棚和地面安装)，连接到同一个并网系统。结果表明，光伏板温度与周围环境的露点温度和湿度呈反比关系。在24 h的测量周期中，热指数值在太阳活动高峰时值稍低。测量温度和湿度之间的差异和关系，并根据变量的瞬时发生突出显示损失。根据实测温度值与计算温度值的差异，结果表明，地面、屋顶和停车场安装的光伏系统分别面临27.95%、5.41%和0.82%的功率损耗。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Energy & Environment ENVIRONMENTAL STUDIES-

CiteScore

7.60

自引率

7.10%

发文量

157

期刊介绍： Energy & Environment is an interdisciplinary journal inviting energy policy analysts, natural scientists and engineers, as well as lawyers and economists to contribute to mutual understanding and learning, believing that better communication between experts will enhance the quality of policy, advance social well-being and help to reduce conflict. The journal encourages dialogue between the social sciences as energy demand and supply are observed and analysed with reference to politics of policy-making and implementation. The rapidly evolving social and environmental impacts of energy supply, transport, production and use at all levels require contribution from many disciplines if policy is to be effective. In particular E & E invite contributions from the study of policy delivery, ultimately more important than policy formation. The geopolitics of energy are also important, as are the impacts of environmental regulations and advancing technologies on national and local politics, and even global energy politics. Energy & Environment is a forum for constructive, professional information sharing, as well as debate across disciplines and professions, including the financial sector. Mathematical articles are outside the scope of Energy & Environment. The broader policy implications of submitted research should be addressed and environmental implications, not just emission quantities, be discussed with reference to scientific assumptions. This applies especially to technical papers based on arguments suggested by other disciplines, funding bodies or directly by policy-makers.