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Reliability index measuring and calculating model generation method and apparatus and measuring and calculating method and apparatus

A model generation and reliability technology, applied in the field of distribution network, can solve problems such as unsuitable for reliability index calculation, long-term maintenance and update of system database, heavy workload, cumbersome data entry work, etc.

Active Publication Date: 2016-02-24
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For a large-scale distribution network with thousands of feedback lines and tens of thousands of distribution transformers, using these two methods to calculate the reliability index needs to input the complete structure and parameters of the distribution network. Therefore, a lot of tedious data is often required. Entry job
What is more difficult is that since the number of distribution network equipment and connection methods are in the long-term continuous change and development, the long-term maintenance and update of the system database required for the calculation of reliability indicators requires a large workload, so these methods are more suitable for The reliability index calculation of local power grid structure is not suitable for the reliability index calculation of large-scale distribution network

Method used

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  • Reliability index measuring and calculating model generation method and apparatus and measuring and calculating method and apparatus
  • Reliability index measuring and calculating model generation method and apparatus and measuring and calculating method and apparatus
  • Reliability index measuring and calculating model generation method and apparatus and measuring and calculating method and apparatus

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Embodiment 1

[0044] figure 1 It is a flowchart of a method for generating a reliability index calculation model provided in Embodiment 1 of the present application.

[0045] Such as figure 1 As shown, the method includes:

[0046] S101. Divide the distribution network into multiple sub-distribution network areas according to the preset line structure division rules;

[0047] In the embodiment of the present application, preferably, when generating the corresponding reliability index calculation model for the distribution network, it is first necessary to divide the distribution network into multiple sub-distribution network areas according to the preset line structure division rules, where , each sub-distribution network region only satisfies one characteristic indicated by the line structure division rule.

[0048] S102. For each sub-distribution network area, based on the uniform segmentation of the feeder in the sub-distribution network area and the uniform distribution of loads alon...

Embodiment 2

[0071] figure 2 A flowchart of a method for dividing a distribution network into multiple sub-distribution network regions according to a preset line structure division rule provided in Embodiment 2 of the present application.

[0072] Such as figure 2 As shown, the method includes:

[0073] S201. Divide the distribution network into multiple typical power supply areas according to the typical power supply area division rules in the preset line structure division rules;

[0074] In the embodiment of the present application, preferably, the distribution network in a region is divided into multiple typical power supply areas according to the typical power supply area division rules in the preset line structure division rules, such as: urban network, Rural Network, etc.

[0075] S202. For each typical power supply area, divide the typical power supply area into a plurality of sub-distribution network areas by using the wiring mode division rule in the line structure division...

Embodiment 3

[0082] image 3 It is a schematic structural diagram of a reliability index calculation model generating device provided in Embodiment 3 of the present application.

[0083] Such as image 3 As shown, the device includes:

[0084] A distribution network division unit 31, configured to divide the distribution network into multiple sub-distribution network areas according to preset line structure division rules;

[0085] The first generation unit 32 is configured to, for each sub-distribution network area, based on the rules of uniform segmentation of feeders and uniform distribution of loads along the feeder in the sub-distribution network area, using a preset failure mode and consequence analysis method, and sub-distribution According to the distribution parameters corresponding to the sub-distribution network area, the fault outage reliability index calculation model and the pre-arranged outage reliability index calculation model corresponding to the sub-distribution networ...

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Abstract

The invention provides a reliability index measuring and calculating model generation method and apparatus and a measuring and calculating method and apparatus. The line structure of a power distribution network is divided into multiple sub-power distribution network areas; and a reliability index measuring and calculating model of the power distribution network is generated based on the rule that the feed lines in the sub-power distribution network areas are segmented uniformly and the load is in uniform distribution along the feed lines. Therefore, a user can measure and calculate the power distribution network reliability index without collecting and logging a network topology structure (i.e. information like distribution transform and switch position etc.) when measuring and calculating the reliability index by using the generated reliability index measuring and calculating model of the power distribution network; and the reliability index of the power distribution network is measured and calculated rapidly on the basis of reduction of data logging and data maintenance workload.

Description

technical field [0001] The present application relates to the field of distribution network technology, and in particular to a method and device for generating a reliability index measurement model and a method and device for measurement and calculation. Background technique [0002] According to the statistics of power companies, 80% of power outage accidents are caused by distribution network faults, and the reliability evaluation of distribution network is of great significance. The methods of distribution network reliability assessment are generally divided into two categories: analytical method and simulation method. [0003] For a large-scale distribution network with thousands of feeder lines and tens of thousands of distribution transformers, using these two methods to calculate the reliability index needs to input the complete structure and parameters of the distribution network. Therefore, a large amount of tedious data is often required Entry job. What is more d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00G06Q50/06
CPCG06Q50/06H02J3/00H02J3/001H02J2203/20Y04S10/50
Inventor 万凌云王艳宫林伏进吴高林张盈
Owner STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST
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