Assessing the Photovoltaic Power Generation Potential of Highway Slopes

被引:7
作者
Han, Zhenqiang [1 ,2 ]
Zhou, Weidong [1 ]
Sha, Aimin [1 ,2 ]
Hu, Liqun [1 ,2 ]
Wei, Runjie [1 ]
机构
[1] Changan Univ, Sch Highway, Xian 710064, Peoples R China
[2] Changan Univ, Key Lab Special Area Highway Engn, Minist Educ, Xian 710064, Peoples R China
关键词
road transport system; photovoltaic power generation; highway slope; photovoltaic array placement; power generation potential assessment; SOLAR-ENERGY APPLICATIONS; AZIMUTH ANGLES; RADIATION; SYSTEMS; TILT;
D O I
10.3390/su151612159
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The solar photovoltaic (PV) power generation system (PGS) is a viable alternative to fossil fuels for the provision of power for infrastructure and vehicles, reducing greenhouse gas emissions and enhancing the sustainability of road transport systems. A highway slope is generally an idle public area with high accessibility, which is the ideal application scenario for a PV PGS. The assessment of PV power generation potential (PGP) is key for the planning and design of PV PGS projects. Previous approaches to potential assessments are mainly based on digital maps and image processing techniques, which do not fully consider the impacts of the highway orientation, the slope geometric characteristics, and the PV panel placement scheme on the evaluation results. Therefore, this study proposes an assessment method for the PV PGP on highway slopes using the design or calculated highway and slope geometric parameters and the solar radiation received by PV panels under the desirable placement scheme. Highway segmentation and geometric parameter calculation methods were established, and the optimal PV array placement schemes for typical slope orientations were determined by simulating the PV power generation in the software PVsyst (version 7.2). Afterwards, the theoretical PGP could be calculated using the received solar radiation and the available slope area. By subtracting the energy loss caused by temperature changes, the operation of inverters, and the PV modules' performance decay, the actual PV PGP could be obtained. Finally, a case study of the solar PGP assessment of a 1.97 km long highway section is provided, and the feasibility of the proposed method is verified.
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页数:26
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