Power grid reliability evaluation method and system and terminal power supply equipment

A power grid equipment and reliability technology, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as inaccurate grid reliability assessment

Active Publication Date: 2019-09-20
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a grid reliability assessment method...

Method used

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  • Power grid reliability evaluation method and system and terminal power supply equipment
  • Power grid reliability evaluation method and system and terminal power supply equipment
  • Power grid reliability evaluation method and system and terminal power supply equipment

Examples

Experimental program
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Embodiment 1

[0027] figure 1 It shows the implementation flow chart of the power grid reliability assessment method provided by an embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0028] like figure 1 As shown, a power grid reliability assessment method provided by an embodiment of the present invention includes:

[0029] S101, divide the grid model into multiple grid sub-areas according to preset rules, the grid model is a virtual model established according to the grid in the preset area;

[0030] S102. Based on the equipment information of the equipment in the grid sub-area and the line information of each equipment connection line in the grid sub-area, determine the initial reliability of each of the grid sub-areas; and for each grid sub-area Correct the initial reliability of the grid to obtain the independent reliability of each grid sub-region;

...

Embodiment 2

[0104] like figure 2 As shown, an embodiment of the present invention provides a system 100 for performing figure 1 The method step in the corresponding embodiment, it comprises:

[0105] A splitting module 110, configured to divide the grid model into multiple grid sub-areas according to preset rules;

[0106] The first calculation module 120 is configured to determine the initial reliability of each of the grid sub-areas based on the equipment information of the equipment in the grid sub-area and the line information of each equipment connection line in the grid sub-area; and Correct the initial reliability of each grid sub-region to obtain the independent reliability of each grid sub-region;

[0107] The obtaining module 130 is used to obtain the degree of influence of each grid sub-region on the power grid; obtain the failure probability of each regional connection line and the degree of influence of each regional connection line on the power grid of the preset region, ...

Embodiment 3

[0156] image 3 It is a schematic diagram of terminal power supply equipment provided by an embodiment of the present invention. like image 3 As shown, the terminal power supply device 3 of this embodiment includes: a processor 30 , a memory 31 , and a computer program 32 stored in the memory 31 and operable on the processor 30 . When the processor 30 executes the computer program 32, it realizes the steps in each embodiment as described in Embodiment 1, for example figure 1 Steps S101 to S105 are shown. Alternatively, when the processor 30 executes the computer program 32, it realizes the functions of each module / unit in each system embodiment as described in Embodiment 2, for example figure 2 The functions of modules 110 to 140 are shown.

[0157] The terminal power supply device 3 refers to terminals with data processing capabilities, including but not limited to computers, workstations, servers, and even smart phones with excellent performance, palmtop computers, tab...

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Abstract

The invention provides a power grid reliability evaluation method and system and terminal power supply equipment. The method comprises the steps that a power grid model is divided into a plurality of power grid sub areas according to a preset rule; the initial reliability of each power grid sub area is determined, and the initial reliability of each power grid sub area is corrected, and the independent reliability of each power grid sub area is obtained; the influence degree of each power grid sub area on the power grid is obtained; the fault probability of each area connecting line and the influence degree of each area connecting line on the power grid of the preset area are acquired; and the target reliability of the power grid of the preset area is calculated based on the independent reliability of each power grid sub area, the influence degree of each power grid sub area on the power grid of the preset area, the fault probability of each area connecting line and the influence degree of each area connecting line on the power grid of the preset area. The method can accurately evaluate the reliability of the power grid.

Description

technical field [0001] The invention belongs to the technical field of power grid monitoring, and in particular relates to a power grid reliability evaluation method, system and terminal power supply equipment. Background technique [0002] The power transmission system plays an important role as a bridge to transmit electric energy from power plants to users, and its reliability will greatly affect the reliability of the entire power system. [0003] The current evaluation methods for power grid reliability are mainly based on reliability statistical analysis and power supply reliability information analysis. These methods mainly focus on theoretical research, which is difficult to guide the power grid in practical applications, resulting in inaccurate evaluation. Contents of the invention [0004] In view of this, an embodiment of the present invention provides a grid reliability assessment method, system and terminal power supply equipment to solve the current problem o...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 岳洋宋彦军王东辉赵冀宁张云翟宁张静玉常浩张东坡
Owner STATE GRID CORP OF CHINA
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