Measuring Method of Carbon Emissions from Electricity Consumption in Active Distribution Network Based on Carbon Emission Flow

Abstract

The invention relates to a method for measuring carbon emission quantities during power consumption by active power distribution network users and based on carbon emission flow, and belongs to the technical field of low-carbon electric power and electric power system operation measurement. The method comprises the following steps: a topological structure, system parameters and running state data of an active power distribution network are input from a power grid database to form a basic database; data are selected from the basic database to construct a computing matrix and a vector of the carbon emission flow of the active power distribution network; zero flux nodes which affect the solution feasibility of the carbon emission flow in the active power distribution network are judged and removed; the constructed computing matrix and the constructed vector are used for solving the node carbon potential of all non-power-supply nodes in all time periods in the active power distribution network; and the carbon emission quantities during the power consumption by all users at all the nodes in all the time periods are calculated according to the obtained carbon potential of all the user nodes in the active power distribution network, and therefore the measurement of the carbon emission quantities during the power consumption by the users in a single time period and multiple periods is finished. According to the method, the carbon emission flow theory is applied to the active power distribution network, and therefore the carbon emission quantities during the power consumption by the users can be observed and measured.

Description

technical field [0001] The invention belongs to the technical field of low-carbon electric power and power system operation measurement, and in particular relates to a method for measuring the carbon emission of electricity consumed by active distribution network users based on carbon emission flow. Background technique [0002] In the field of low-carbon power, the measurement, calculation and analysis of carbon emissions in power systems are fundamental tasks. Establishing a scientific carbon emission measurement, calculation and analysis network method is an important basis for realizing carbon emission reduction. However, the existing carbon emission calculation method starts from macroscopic data and conducts statistics based on energy consumption, which has the advantages of simple calculation, accurate results and practical methods. However, this method only measures the physical "exit" of emissions, while ignoring the flow and distribution of carbon emissions from t...

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Problems solved by technology

However, this method only measures the physical "exit" of emissions, ignoring the flow and distribution of carbon emissions from the "source" to the "exit".

With the continuous development of low-carbon power research, only relying on the calculation of carbon emissions cannot fully reflect the low-carbon characteristics of the power system, and the limitations of this method will gradually emerge.

[0003] The main limitation is that electric energy is a typical secondary energy source, its carbon emissions are concentrated in the power generation link, and basically no carbon emissions are generated in the transmission and consumption links

Low-carbon technologies in the active distribution network, such as electric vehicles, controllable energy storage devices, demand-side management and other intelligent power distribution and utilization technologies, cannot accurately evaluate their low-carbon benefits and technical value because of the difficulty in defining the carbon emissions of electricity consumption

It is not conducive to the rational planning and development of low-carbon active distribution network technology

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