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Line loss information planning system based on actual measurement information

A planning system and line loss technology, applied in the field of line loss information planning system based on measured information, can solve the problems of large distribution area of ​​power grid, uneven temperature distribution, large deviation between theoretical technical line loss and actual technical line loss, etc. To achieve the effect of saving manpower and material costs

Pending Publication Date: 2021-06-25
ANHUI XINLT POWER TECH CONSULTING +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the measured actual line loss is often not equal to the calculated theoretical line loss, not only because the actual line loss also includes the management line loss, but also because the ambient temperature will affect the resistance, grid heat dissipation and other factors to change the actual line loss
Due to the large distribution area of ​​the power grid, the temperature distribution of its environment is uneven and complex, resulting in a large deviation between the calculated theoretical technical line loss and the actual technical line loss

Method used

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  • Line loss information planning system based on actual measurement information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, a line loss information planning system based on measured information includes dividing the power grid into several test areas, and an electric power detection module 012 is installed at the electric input and electric output of each test area, and the electric power detection The module 012 is used to measure the power information of the electrical input and the electrical output respectively;

[0029] The line loss information planning system also includes a thermal energy flow law database 011, temperature sensors, wind speed sensors, and wind direction sensors installed at various places in the grid, the number of the temperature sensors is less than the number of the test areas, and the thermal energy flow The law database 011 stores several thermal energy flow models, and different thermal energy flow models reflect the heat flow flow laws under different terrain conditions, and the thermal energy flow models include temperature informat...

Embodiment 2

[0040] The difference from Embodiment 1 is that the electric quantity detection module 012 is set on the distribution transformer side of the power plant, the distribution transformer side of the station area, the branch nodes of each low-voltage branch line, and the side of each user meter box.

[0041] Obtain the actual line loss value of the actual line loss value calculation module 015, obtain the actual line loss change map according to the actual line loss value, obtain the theoretical line loss change map of the line loss change map drawing module 017, and compare the actual The line loss change map and the theoretical line loss change map determine the abnormal line loss area. The number of data points on the actual line loss change map is less than the number of data points on the theoretical line loss change map.

Embodiment 3

[0043] The difference from Embodiment 2 is that the line loss information planning system further includes an abnormal line loss determination module 018, and the abnormal line loss determination module 018 includes an abnormal line loss database, and the abnormal line loss database stores line loss deviations Information and corresponding abnormal information, the line loss deviation information reflects the degree of deviation between the actual line loss value and the theoretical line loss value, and the abnormal information reflects potential safety hazards in the power grid;

[0044] The abnormal line loss determination module 018 compares the actual line loss change map with the theoretical line loss change map to obtain actual deviation information, and determines the corresponding abnormal information in the abnormal line loss database according to the actual deviation information as the actual abnormal information . A warning is issued according to the actual abnormal...

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Abstract

The invention discloses a line loss information planning system based on actual measurement information. According to the system, the heat energy flow rule of a terrain is simulated by acquiring the terrain, altitude and weather information on that day and arranging a small number of temperature sensors, wind speed sensors and wind direction sensors so as to simulate a heat energy flow model; and the temperature information of a test area is obtained according to the heat energy flow model, and a temperature-line loss model is established according to the deviation between a theoretical technical line loss value calculated according to the prior art and an actual technical line loss value. According to the invention, the temperature-line loss model can adapt to power grids in different regions, and the system considers the influence of complex environment temperature factors of the power grids on the line loss, so that the calculated theoretical technical line loss value is very close to the actual technical line loss value.

Description

technical field [0001] The invention relates to the technical field of line loss planning, in particular to a line loss information planning system based on measured information. Background technique [0002] When electric energy passes through power supply equipment such as lines and transformers, the electric energy loss and power loss are called power supply loss, referred to as line loss. Line loss is divided into technical loss and management loss. Technical loss is divided into fixed loss and variable loss. Fixed loss refers to the iron loss of the transformer, the loss of the voltage coil of the electric energy meter, the dielectric loss of the power capacitor, etc., the fixed loss and the current size It doesn't matter, as long as the equipment is powered on, there will be loss; variable loss refers to the loss generated by the current passing through the conductor. After the conductor cross section, length and material are determined, the loss changes with the magni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01D21/02
CPCG01R31/00G01D21/02
Inventor 黄道友康健张征凯潘丽珠程石仇茹嘉白天宇钟跃蒋伟罗红波程兰芳吴征
Owner ANHUI XINLT POWER TECH CONSULTING
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