Power generation prediction method and device based on building information model

Abstract

The embodiment of the invention discloses a power generation prediction method and device based on a building information model, and belongs to the field of photovoltaic power generation. The method comprises the steps that corresponding photovoltaic application modes are selected from the built building information model; corresponding photovoltaic component parameters are adjusted; photovoltaic components are registered on the built building information model one by one, and a radiation analysis model corresponding to a building to be matched is acquired in a vectorization mode; the real-time solar radiation quantity borne by the configured photovoltaic components is calculated according to assembly information acquired from a photovoltaic component model and the radiation analysis model; after the real-time solar radiation quantity borne by the configured photovoltaic components is converted to actually generated real-time electric quantity, then power generation distribution of the building to be matched is predicted. According to the power generation prediction method and device based on the building information model, a BIM modeling and analyzing mode is adopted to calculate the radiation quantity in every hour of each photovoltaic component through typical meteorological conditions of the place where the building is located, accurate power generation quantity prediction can be carried out at the initial stage of a solar photoelectric building project plan, and calculation accuracy and precision are improved.

Description

technical field [0001] The invention belongs to the field of photovoltaic power generation, and relates to a method and device for predicting the power generation of solar photovoltaic buildings based on building information model technology. Background technique [0002] BIM is the abbreviation of Building Information Modeling, which is generally translated into building information model in Chinese. BIM is a technology that creates and uses digital models to apply to all stages of the construction project life cycle; it is also a digital expression of the physical and functional characteristics of buildings, and its expression form is a three-dimensional building information model with information. As a shared building information resource, the model established by BIM is the core and data basis for the specific application of each stage of the construction project's life cycle and various performance analysis. [0003] Solar photovoltaic buildings are buildings that inte...

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Problems solved by technology

The existing methods for predicting the power generation of solar photovoltaic buildings are all based on the forecasting methods and software of photovoltaic power plants, which cannot be analyzed in combination with the influencing factors of the building itself, let alone specific photovoltaic components of solar photovoltaic buildings (such as photovoltaic curtain walls, Photovoltaic building materials, etc.) for accurate power generation prediction, so the current power generation prediction method for photovoltaic buildings is poor in adaptability, and the accuracy of the prediction results is insufficient, which cannot provide a reliable basis for program decision-making

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