Campus building photovoltaic potential assessment method based on parameterization analysis

Abstract

The invention relates to the technical field of solar energy resource evaluation, in particular to a campus building photovoltaic resource evaluation method based on parameterization analysis. The method comprises the following four basic steps of 1, establishing a three-dimensional digital model of a building in an evaluation area, including building block modeling according to a planar graph and photogrammetric modeling of sheltering objects and doors and windows, 2, analyzing and determining the installable area of the photovoltaic facility, and performing sunlight duration analysis and rapid area measurement by using parameterized software Grasshopper in the process, 3, calculating the photovoltaic generating capacity and the capital investment cost, and 4, predicting a photovoltaic replacement scene in combination with the campus electricity consumption, comparing the potential of photovoltaic replacement of traditional power consumption under different scales and different application scenes according to the campus total electricity consumption and the electricity consumption of various types of buildings, calculating to obtain the maximum replacement percentage, and giving a photovoltaic module installation scheme.

Description

technical field [0001] The invention relates to the technical field of solar energy resource assessment, in particular to a parameterized analysis-based photovoltaic resource assessment method for campus buildings. Background technique [0002] In the context of carbon peaking and carbon neutrality, it is imminent to reduce carbon emissions in the building sector. The energy consumption of campuses is increasing year by year. Installing photovoltaic systems on campus buildings can accelerate the transition to renewable energy and sustainable energy development. Quantitative evaluation of the potential of campus photovoltaic resources is the basis for formulating application strategies, and can provide developers and users with basic data and engineering construction guidance. Judging from the status quo at home and abroad, the current domestic photovoltaic potential analysis has formed two trends in terms of scale, one is the large-scale photovoltaic potential assessment of ...

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Problems solved by technology

Judging from the status quo at home and abroad, the current domestic photovoltaic potential analysis has formed two trends in terms of scale, one is the large-scale photovoltaic potential assessment of cities, regions and even countries; the other is mainly dedicated to the installation of photovoltaic systems. The owner provides quantitative and referenceable basis for photovoltaic utilization potential, focusing on single buildings, and there is still a gap in the analysis methods suitable for areas such as campuses with dense buildings and high energy use

In addition, there are mainly two existing PV potential analysis methods. The first one is based on the collection of evaluation object data, and uses formulas and reduction coefficient methods for evaluation. Considering the actual details of the buildings in the area, the data obtained are rough and have significant technical defects; although the second method uses laser scanning modeling or photogrammetry methods, it pays more attention to the recognition of building outlines, at most it analyzes the mutual occlusion of buildings, and there is no It is refined to rooftop equipment, and the evaluation of photovoltaic potential is not related to building electricity consumption, so the guiding significance of actual promotion is low

In recent years, there have also been some methods for photovoltaic simulation using interactive network platforms and even mobile phone applications, but most of them use low-precision orthophotos or Google Earth images, with a resolution of up to about 1 meter, which cannot analyze details, and orthophotos The image cannot recognize the height of the roof equipment and the building facade, and has a technical flaw

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