Mesoscale numerical simulation method for climate effect evaluation of onshore centralized photovoltaic power station

Abstract

The invention discloses a mesoscale numerical simulation method for climate effect evaluation of an onshore centralized photovoltaic power station. The mesoscale numerical simulation method comprises the following steps of: preprocessing multisource meteorological observation data of the onshore centralized photovoltaic power station; performing surface short-wave radiation parameterization by using comprehensive albedo and photoelectric conversion efficiency; performing direct explicit numerical parameterization on heat-sensitive flux by using wind speed, air density and short-wave radiation; performing latent heat flux, soil heat flux and long-wave radiation parameterization by using a difference comparison method; carrying out parameterization on the dragging effect of a photovoltaic panel by utilizing dynamic roughness; and quantitatively evaluating the climate effect of the photovoltaic power station through a sensitivity numerical simulation test. According to the method, the objective quantitative evaluation problem of the climate influence of the large photovoltaic power station is solved; and the simulation method has relatively high universality. By adopting the method, post-evaluation can be carried out on the climate effect of the built photovoltaic power station, pre-evaluation can be carried out on the climate effect of the power station to be built, and a basis is provided for site selection and construction of a climate-friendly power station.

Description

technical field [0001] The invention belongs to the technical field of meteorological data analysis and processing, and relates to a numerical simulation method for quantitative assessment of the climate effect of photovoltaic power plants, in particular to a land surface based on radiation balance, heat balance and surface drag in the photovoltaic power plant area. Process numerical parameterization method. Background technique [0002] The quantitative evaluation of the climate effect of centralized photovoltaic power plants not only provides the necessary technical support for the siting design of climate-friendly photovoltaic power plants, but also serves as the scientific basis for my country's energy structure adjustment and climate change response. At present, research on the climate effects of large-scale photovoltaic power plant development is limited to individual fixed-point observations, theoretical calculations, or extensive simulations, which cannot provide eff...

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Problems solved by technology

The numerical simulation method of the climate effect of the photovoltaic power station established based on the numerical parameterization of the surface radiation balance, heat balance and surface drag damping of the photovoltaic power station and the sensitivity numerical simulation test of the present invention solves the objective and quantitative evaluation problem of the climate impact of the large-scale photovoltaic power station , and the simulation method has strong universality

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