Construction method for electric energy supply-demand balance thermodynamic diagram of power distribution network

Abstract

The invention discloses a construction method for an electric energy supply-demand balance thermodynamic diagram of a power distribution network. The method comprises the following steps of: taking all high-supply and high-metering electric energy metering points in a required statistical area as nodes; taking a map in the electric power geographic information system as a base map, and dividing astatistical area on the base map into a plurality of small grids according to a required map scale; respectively calculating the voltage phase angle unbalance degree of each node; after the voltage phase angle unbalance degree of each node is obtained through calculation, calculating the unbalance degree of each small square grid; and according to the unbalance degree obtained by corresponding calculation of each small grid, performing color labeling on each small grid to generate a power distribution network electric energy supply and demand balance thermodynamic diagram. By constructing thepower distribution network electric energy supply and demand thermodynamic diagram, the all-weather supply and demand situation of actual operation of the power distribution network can be mastered, amore comprehensive and visual tool can be provided for upgrading and reconstruction work of the power distribution network, and improvement of the power distribution network upgrading and reconstruction fund utilization efficiency is facilitated.

Description

technical field [0001] The invention relates to the technical field of electric energy supply and demand balance of distribution network, in particular to a method for constructing a thermal diagram of electric energy supply and demand balance of distribution network. Background technique [0002] The existing understanding of the power supply and demand balance of the distribution network mainly depends on load forecasting, load type statistics, and user installed capacity statistics (referring to user reported installed capacity and existing power supply capacity), and finally forms a report, which is relatively static The data is not combined with the geographic information system into a visual data image, the readability of the information is relatively poor, the data source is single, and due to the overload or under-full load of users, it is necessary to compare the reported capacity and power capacity The method will not know enough about the actual working conditions...

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Problems solved by technology

[0002] The existing understanding of the power supply and demand balance of the distribution network mainly depends on load forecasting, load type statistics, and user installed capacity statistics (referring to user reported installed capacity and existing power supply capacity), and finally forms a report, which is relatively static The data is not combined with the geographic information system into a visual data image, the readability of the information is relatively poor, the data source is single, and due to the overload or under-full load of users, it is necessary to compare the reported capacity and power capacity method, will not know enough about the actual working conditions of the distribution network

For the upgrading and transformation of the distribution network, there is a lack of dynamic perception of the existing power grid structure, and it is impossible to understand the power supply and demand balance of the actual distribution network.

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