Recognition method of air conditioning chilled water supply temperature strategy based on sub-item measurement data

Abstract

The invention provides an air-conditioning chilled water supply temperature strategy identification method based on itemized metering data, and relates to the field of operating strategy identification for building air-conditioning systems. Using the method of parameter replacement, only using sub-item energy consumption data and outdoor environment data to study the relationship between chilled water supply temperature and its related parameters, through the energy consumption of chillers, cooling towers, chilled water pumps, and cooling water pumps , outdoor dry-bulb temperature, indoor dry-bulb temperature, and flow parameters to obtain the chilled water supply temperature. Construct the ELM classification model of chilled water supply temperature strategy, and use the model to reversely identify the chilled water supply temperature strategy of the air conditioning system from the real-time chilled water supply temperature relationship parameter data, so as to achieve remote real-time monitoring of the chilled water supply temperature parameter operation strategy of the air conditioning system, and improve building air conditioning System operation strategy identification, in conjunction with building energy-saving diagnosis work, provides a reliable basis for building operation management and achieves the purpose of saving energy and reducing consumption.

Description

[0001] The invention relates to the field of operating strategy identification of building air-conditioning systems, in particular to a method for identifying the temperature strategy of air-conditioning chilled water supply based on itemized metering data. Background technique [0002] According to statistics, at present, the existing public buildings in my country can reach 4.5 billion square meters, of which large public buildings using central air conditioning are about 500-600 million square meters, and their power consumption per unit building area is 7-10 times that of residential buildings. my country's public buildings have been regarded as the focus of building energy conservation because of their great energy-saving potential and complex building functions. In the whole life cycle of buildings, 80% of the energy consumption is the energy consumption of buildings during use. However, existing public buildings in my country generally emphasize design and neglect operat...

AI Technical Summary

Problems solved by technology

At the engineering site, the chilled water supply temperature strategy is mainly recorded manually by operation and maintenance personnel or automatically recorded by the air-conditioning automatic control system. Recording data requires frequent export of data, which causes problems such as difficulty in obtaining information and lack of information in the operation and maintenance management of building air conditioning systems, and increases the difficulty of energy-saving diagnosis.

Images