Separating method for indirect subentry measurement of building energy consumption

Abstract

The invention relates to a separating method for indirect subentry measurement of building energy consumption. The method mainly comprises the steps that: (1) the values of the active power, the inactive power, the voltage and the harmonic ratio of the current on a main line aremonitored through an intelligent electric meter in real time, and the monitored data are stored; (2)the startup and stopping signals of consumer devices are detected; (3) the identification of the consumer devices is carried out; (4) the electric energy consumed by the consumer devices is calculated; and (5) the electric energy consumed by the consumer devices is separately counted to achieve the subentry measurement of electric energy. According to the separating method, just one intelligent electric meter is used on the energy consumption monitoring main line, and therefore the trouble of directly measuring the terminal of each consumer device separately by using an electric meter is avoided, so that the measurement cost is low, the structure is simple, the identification precision of the consumer devices is high, and the accurate separate energy consumption counting for a building is achieved.

Description

technical field [0001] The invention relates to a building energy consumption measurement method, which belongs to the field of building energy consumption measurement, and specifically relates to an indirect energy consumption sub-item measurement split method. Background technique [0002] With the development of building energy conservation work, a detailed and direct sub-item energy consumption data becomes crucial. As a reference condition for energy conservation, sub-item energy consumption data provide effective data support for the construction of new energy-efficient buildings, energy-saving renovation of existing buildings, and evaluation of renovation results. Sub-item measurement of energy consumption is to separately measure energy-consuming equipment with different functions in the building. Currently, sub-item measurement systems are mainly divided into two categories: direct sub-item measurement and indirect sub-item measurement. Direct sub-item metering is...

AI Technical Summary

Problems solved by technology

The split method of optimal energy consumption mainly introduces the concept of "uncertainty" and splits the total energy consumption through energy consumption estimation. The accuracy of sub-item measurement results of energy consumption is not high

The electric energy sub-item measurement method based on the current transformer can calculate the power of the equipment put into operation more accurately, but it is impossible to judge what kind of equipment the operating equipment is, so that the sub-item measurement of electric energy cannot be carried out smoothly.

The electrical equipment identification method based on the form factor can accurately identify the type of equipment put into operation and realize the sub-item measurement of electric energy. However, due to the wide variety of electrical equipment, the form factor data compared with the current form factor of the input equipment deficient, very limited

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