Photovoltaic power generation equipment radiation analysis method based on building information model

Abstract

The invention discloses a photovoltaic power generation equipment radiation analysis method based on a building information model. The photovoltaic power generation equipment radiation analysis method comprises the following steps: establishing a building model comprising photovoltaic power generation equipment; obtaining a geographic position of the building model and an annual sun position of the geographic position; obtaining a light illumination receiving surface of the photovoltaic power generation equipment according to the geographic position of the building model and parameters of the photovoltaic power generation equipment; dividing the light illumination receiving surface into a plurality of grids, and judging whether each grid is shielded by an obstacle or not time slice by time slice; and counting the sun radiation intensity of the grids to obtain sun radiation data of the photovoltaic power generation equipment. Aiming at the photovoltaic power generation equipment in the building model, the surface is subjected to fine granularity division and the radiation amount without the shielding of the obstacle is calculated; a mounting position of the photovoltaic equipment can be rapidly and effectively determined according to analysis results; meanwhile, the designed photovoltaic power generation equipment is subjected to simulation analysis to evaluate the power generation performance of the system, and the optimal improvement is carried out.

Description

Technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a method for analyzing radiation of photovoltaic power generation equipment based on a building information model. Background technique [0002] BIM is the abbreviation of Building Information Modeling. It is generally translated into building information model in Chinese. It uses various information data of construction projects as the basis of the model to establish the building model and simulate the real information of the building through digital information simulation. Since 2002, the international construction industry has emerged with BIM as the core building information application, and BIM has become the standard of the construction industry. [0003] In order to reduce the energy consumption of buildings, the integration of photovoltaic buildings is proposed, which combines buildings and photovoltaics, so that the building has changed from a simple electricity consumer ...

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Problems solved by technology

[0010] This invention is mainly applicable to the design of photovoltaic power plants based on the ground plane, and cannot be applied to the design of photovoltaic buildings with complex surface conditions such as horizontal planes, vertical planes, and curved surfaces.

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