A Mesoscale Numerical Simulation Method for Assessment of Climate Effects of Onshore Concentrated Photovoltaic Power Stations

Abstract

The invention discloses a mesoscale numerical simulation method for climate effect assessment of land centralized photovoltaic power plants, including preprocessing of multi-source meteorological observation data of land centralized photovoltaic power plants; using comprehensive albedo and photoelectric conversion efficiency to conduct surface short-wave Radiative parameterization; direct and explicit numerical parameterization of sensible heat flux using wind speed, air density, and shortwave radiation; parameterization of latent heat flux, soil heat flux, and longwave radiation using differential contrast; dynamic roughness Parameterize the drag effect of photovoltaic panels; quantitatively evaluate the climate effect of photovoltaic power plants through sensitivity numerical simulation experiments. The invention solves the problem of objective and quantitative evaluation of the climate impact of large-scale photovoltaic power plants, and the simulation method has strong universality. Using this method, it is possible to carry out post-evaluation on the climate effect of the built photovoltaic power station, and to carry out pre-evaluation on the climate effect of the proposed power station, which provides a basis for the site selection and construction of climate-friendly power stations.

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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