Building energy consumption control method and system

Abstract

The invention discloses a building energy consumption control method and system, which belong to the technical field of energy conservation of heating ventilation and air conditioning. The method comprises steps: the overall energy consumption minimum parameter of a building energy consumption correlation system is obtained through operation of an expert system; the operation condition control parameter corresponding to the overall energy consumption minimum parameter is acquired; the operation condition control parameter is optimized through the expert system to obtain the real-time optimization control parameter of the building energy consumption correlation system; and the real-time optimization control parameter is outputted to each component device of the building energy consumption correlation system to operate regulation. Based on the calculation of a source of the heat environment requirement of the building, the problem of control lag can be well solved. Starting from the source of requirement load, the real-time optimization control parameter for overall energy-saving optimization is clearly outputted to be directly used as a control parameter of a field controller to beoutputted, thereby not relying on a technician in overall energy-saving calculation and programming and realizing rapid copying of the application.

Description

technical field [0001] The invention relates to the technical field of HVAC energy saving, in particular to a method and system for controlling building energy consumption. Background technique [0002] my country's building energy consumption accounts for more than 30% of the whole society's energy consumption, of which large public buildings account for 10% of the total building energy consumption, accounting for about 30% of the total building energy consumption, and the proportion of electricity consumption is as high as 50%, which affects the energy capacity and environmental capacity of cities and towns. biggest constraint. Qiu Baoxing, former vice-minister of the Ministry of Construction, pointed out that retrofitting existing buildings with high-efficiency energy technologies can save China about 600 billion yuan in annual costs, which is equivalent to saving four Three Gorges power stations. [0003] HVAC (Heating, Ventilating and Air Conditioning), is an air condit...

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Problems solved by technology

[0010] The purpose of the invention is to solve the problem that modern control technology cannot realize the overall collection and calculation of all related systems (one is that the current control bus technology is difficult to realize and does not have economic value even if the collection is realized); at the same time, by starting from the source of building thermal environment load demand, Calculate the optimal matching of conversion and transmission between demand, transmission and supply with small step size, solve the problem of nonlinearity, large hysteresis characteristics and current optimization of HVAC systems in large public buildings, and it is difficult to further improve energy efficiency; it also further solves the problems of electromechanical control and Energy-saving control, etc., completely rely on the professional technical level and experience of on-site programming and debugging personnel, it is difficult to improve the application effect, and the application implementation is poorly replicated.

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