Regional building energy consumption prediction method in BIM environment

Abstract

The invention discloses a regional building energy consumption prediction method in a BIM environment. The regional building energy consumption prediction method comprises the following steps of A, constructing various regional BIM building typical models based on actual measurement investigation; b, establishing a coupling model between the climate simulation platform and the building energy consumption simulation platform, and completing energy consumption simulation of various buildings; c, constructing a data interaction program, performing regional building energy consumption design parameter sensitivity analysis based on a progressive gradient regression tree algorithm, and determining input parameters of the improved PSO-GA-BP neural network; d, based on the improved PSO-GA-BP neural network, constructing an energy consumption prediction module of various regional BIM building typical models; and E, constructing a future regional climate and building parameter BP neural networkprediction module, and predicting various regional BIM building energy consumption and regional building total energy consumption. Compared with the prior art, the method has the beneficial effects that integration of various regional building energy consumption prediction workflows is realized, and rapid and accurate prediction of various regional building energy consumption based on the improvedPSO-GA-BP neural network is realized.

Description

technical field [0001] The invention relates to the technical field of regional building energy consumption prediction, and specifically refers to a method for predicting regional building energy consumption under a BIM environment. Background technique [0002] Today, my country's building energy consumption accounts for 40% of the total energy consumption, which has great energy-saving potential; in addition, building energy-saving design should not only consider individual buildings, but also conduct energy-saving evaluations of regional building energy consumption. Among them, regional buildings refer to building groups within the area of ​​1 square kilometer, and the scheme design of building groups in the planning stage is of great significance to the energy saving of the region. [0003] At present, the statistical methods of regional building energy consumption mainly include physical models, statistical analysis models and hybrid models. The physical model is to es...

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Problems solved by technology

[0004] There are many problems in the energy-saving design of existing regional buildings. For example, the statistical analysis model mostly relies on historical energy consumption data, and the domestic building energy consumption audit data lacks records related to architectural planning, building envelope structures, and building indoor environment data; regional building energy consumption The physical model has defects such as a large amount of information in the building model, a long time-consuming calculation of building energy consumption simulation, and a lack of consideration of the regional characteristics of climate data in the energy consumption simulation results. The energy consumption simulation analysis of single or multiple buildings is not typical

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