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Method for evaluating power supply reliability index of planned distribution network based on characteristic parameters

A characteristic parameter and reliability technology, applied in the direction of data processing applications, instruments, resources, etc., can solve problems such as inability to obtain network topology and equipment parameter data, difficult to guarantee calculation accuracy, and difficult to apply to planning distribution network power supply reliability assessment, etc. , to achieve the effect of strong practicability, solid theoretical foundation, and large amount of calculation

Inactive Publication Date: 2018-08-31
GRID POWER PLANNING & RES CENT OF GUANGDONG GRID POWER CO LTD +1
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Problems solved by technology

However, for the distribution network in the planning stage, it is often impossible to obtain detailed network topology and equipment parameter data, which also makes it difficult for the analytical method to be applied to the power supply reliability assessment of the planned distribution network.
Therefore, at present, most of the power supply reliability evaluations of the distribution network in the planning stage are based on empirical estimation or estimation based on typical wiring models, and the calculation accuracy is difficult to guarantee.

Method used

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  • Method for evaluating power supply reliability index of planned distribution network based on characteristic parameters
  • Method for evaluating power supply reliability index of planned distribution network based on characteristic parameters
  • Method for evaluating power supply reliability index of planned distribution network based on characteristic parameters

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Embodiment Construction

[0031] Such as figure 1 As shown, a method for evaluating the power supply reliability index of the planned distribution network based on characteristic parameters, which includes the following steps:

[0032] Step 1. Obtain the statistical data of distribution network characteristic parameters, planned funds and power supply reliability indicators in historical years;

[0033] Among them, the characteristic parameters of the distribution network include: the cable conversion rate of the distribution network, the transferable power supply rate, the average length of the line, the average number of segments of the line, and the online rate of distribution automation; the power supply reliability index includes: the average system failure time SAIDI -F, system average fault outage frequency SAIFI-F, system average pre-arranged outage time SAIDI-S, system average pre-arranged outage frequency SAIFI-S.

[0034] Step 2. Establish a correlation analysis model between the characteri...

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Abstract

The invention relates to a method for evaluating a power supply reliability index of a planned distribution network based on characteristic parameters, comprising the following steps: S1, obtaining statistical data of distribution network characteristic parameters, planned funds and power supply reliability indexes in historical years; S2, establishing an association analysis model of the distribution network characteristic parameters and fault outage reliability indexes, and evaluating the fault outage reliability indexes in the planning year; S3, establishing an association analysis model ofthe planned funds and pre-arranged power outage reliability indexes, and evaluating the pre-arranged power outage reliability indexes for the planning year; and S4, accumulating results of the S2 step and the S3 step to obtain a total power supply reliability index evaluation result. The invention can be independent of the detailed topology structure of the distribution network, and only needs toestablish the association analysis model between the characteristic parameters of the distribution network and the reliability indexes, thereby obtaining the power supply reliability indexes of the planning year.

Description

technical field [0001] The present invention relates to the technical field of power supply reliability index optimization of distribution network, and more specifically, relates to a method for evaluating power supply reliability index of planned distribution network based on characteristic parameters. Background technique [0002] With the rapid development of modern social economy and the widespread popularization of high-tech products and highly informationized equipment, the output value of each unit of electricity for users is increasing day by day, and the economic losses caused by unit power outages to users and society are increasing. Therefore, users have higher and higher requirements for power supply reliability. The research and application of power supply reliability is an important means to ensure the quality of power supply and realize the modernization of the electric power industry. [0003] According to the type of power outage, the power supply reliabilit...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0639G06Q50/06
Inventor 曹华珍吴亚雄张俊潇高崇刘涌唐俊熙李阳黄烨陈荃王天霖陈沛东朱永梅
Owner GRID POWER PLANNING & RES CENT OF GUANGDONG GRID POWER CO LTD
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