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Method, device and system for identifying weak link equipment of power distribution network

A weak link and distribution network technology, applied in the direction of circuit devices, electrical components, electrical digital data processing, etc., can solve the problems of inability to identify weak links, inaccurate identification of weak links, strong subjectivity, etc. Sufficient and accurate identification results

Pending Publication Date: 2021-02-19
STATE GRID BEIJING ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The identification of weak links in the existing power system mainly relies on experience to predict faults, which is highly subjective and cannot objectively and accurately identify weak links.
However, the value obtained by this method is a theoretical value, and the actual situation is also affected by building conditions, environmental factors, etc., and the identification of weak links is not accurate

Method used

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  • Method, device and system for identifying weak link equipment of power distribution network
  • Method, device and system for identifying weak link equipment of power distribution network
  • Method, device and system for identifying weak link equipment of power distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] figure 1 It is a flow chart of the identification method of the weak link equipment in the distribution network. Such as figure 1 As shown, the present invention provides a method for identifying weak link equipment in a distribution network, and the method includes the following steps:

[0037] S1: Divide a single line equidistantly, and each equidistant line is used as a device in the identification of weak links in the distribution network;

[0038] In this step, divide the area and equidistantly divide a single line. Each equidistant line is used as a device in the identification of weak links in the distribution network. Each device includes all the switches and electrical appliances in its corresponding equidistant line. .

[0039] S2: Determining the first equipment set of the weak link of the distribution network based on theoretical calculation, and storing and backing up the equipment information of the weak link equipment in the first equipment set;

[00...

Embodiment 2

[0051] figure 2 It is a structural schematic diagram of the identification device for the weak link equipment in the distribution network. Such as figure 2 As shown, the present invention also provides an identification device for weak link equipment in a distribution network, the device includes a segmentation module, an evaluation module, a theoretical statistics module, a monitoring module, an actual statistics module and a central control system;

[0052] The division module divides a single line equidistantly, and each equidistant line is used as a device in the identification of weak links in the distribution network;

[0053] The evaluation module evaluates each device, obtains a theoretical evaluation value, and sends the data to a theoretical statistics module, wherein the evaluation module is connected to the theoretical statistics module;

[0054] The theoretical statistics module compares the evaluation value obtained by the evaluation module with a standard va...

Embodiment 3

[0064] image 3 It is a schematic diagram of the identification system of the weak link equipment in the distribution network. Such as image 3 As shown, the present invention also provides an identification system for weak link equipment in a power distribution network, the system includes a client terminal, and an identification device for executing a method for identifying weak link equipment.

[0065] The specific implementation process of the method steps performed by the identification device in Embodiment 3 of the present invention is the same as the implementation process of each step in Embodiment 1, and will not be repeated here.

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Abstract

The invention relates to a method, a device and a system for identifying weak link equipment of a power distribution network, which enable the identification of weak links of the power distribution network to be more sufficient and prevent omission by equidistantly dividing the power distribution network according to lines, and obtain the weak links of the power distribution network according to afinal evaluation mechanism through the combination of theoretical calculation and actual statistics. The weak link identification of the power distribution network is not limited to a theoretical value, but is comprehensively analyzed by combining the building condition and the environment condition, and the identification result is more accurate.

Description

technical field [0001] The invention belongs to the field of power system automation, and in particular relates to an identification method, device and system for weak link equipment in a distribution network. Background technique [0002] For a long time, electric power workers have done a lot of work in reliability planning, and proposed many evaluation methods for weak links in power supply reliability. The network structure is not clear, and the multi-segment and multi-interconnected network links have not been formed. Distribution network load is growing rapidly. The increase in domestic electricity consumption has brought great pressure to the distribution network. Quite a few equipments have frequent faults due to overload, which makes the user voltage unstable, the network loss is too large, and the line loss rate is high. , therefore, it is particularly important to analyze the weak links of the distribution network. [0003] With the development of society and e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06H02J13/00G06F30/20G06F17/18G06F113/04G06F119/02
CPCG06Q10/0639G06Q50/06H02J13/00001G06F17/18G06F30/20G06F2119/02G06F2113/04
Inventor 祁宏陈秀海陈默张頔谢之光吴钢
Owner STATE GRID BEIJING ELECTRIC POWER
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