ENERGY SAVING POTENTIAL RESEARCH OF PHOTOVOLTAIC SYSTEM INSTALLED OVER HIGH-SPEED RAILWAY

Ai Guole; Hao Xiaoli; Liu Xianping; Yan Daren

doi:10.19912/j.0254-0096.tynxb.2021-1054

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (2) : 409-417. DOI: 10.19912/j.0254-0096.tynxb.2021-1054

ENERGY SAVING POTENTIAL RESEARCH OF PHOTOVOLTAIC SYSTEM INSTALLED OVER HIGH-SPEED RAILWAY

Ai Guole¹, Hao Xiaoli^1,2, Liu Xianping¹, Yan Daren³

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Abstract

The operation of high-speed railway needs a large amount of power supply. In order to alleviate the pressure of railway power grid and reduce energy consumption, a power generation system with photovoltaic modules above high-speed railway is proposed. Relevant calculations are carried out for the above systems to quantify the photovoltaic power generation potential of national high-speed railway lines with a design speed of more than 200 km/h. The results show that the annual PV power generation installed over high-speed railway lines in area of annual solar radiation greater than 1200 kWh/m² is more than 7×10⁴ GWh, which closes to the annual power generation of the Three Gorges Dam, and can effectively alleviate the pressure on the railway power grid. When the train with a speed of 350 km/h runs at full speed, the positive/negative value of the surface pressure distribution of the photovoltaic module at 4.5 m height is 140 Pa/-225 Pa, and the extreme wind speed is 3.5 m/s, which meets the requirements of the maximum wind load limit of the photovoltaic modules. The energy conservation and emission reduction benefits on the photovoltaic system of the high-speed railway are significant, and the investment is economically feasible.

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renewable energy / solar energy / photovoltaic power generation / high speed railway / energy conservation and emission reduction

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Ai Guole, Hao Xiaoli, Liu Xianping, Yan Daren. ENERGY SAVING POTENTIAL RESEARCH OF PHOTOVOLTAIC SYSTEM INSTALLED OVER HIGH-SPEED RAILWAY[J]. Acta Energiae Solaris Sinica. 2023, 44(2): 409-417 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1054

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