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Method and device for comprehensively evaluating reliability and economical efficiency of radiation type power distribution network

A comprehensive evaluation and reliability technology, applied in the field of distribution network, can solve problems that need to be studied and achieve the effect of minimizing investment in transformation

Pending Publication Date: 2021-08-31
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the existing technology, the research on considering the distribution network reliability target and selecting the optimal distribution network planning from the perspective of reliability cost-benefit is relatively complete, but it is considered to reduce the failure duration and failure rate of distribution network components to improve distribution network reliability. The selection and economical analysis of the reliability retrofitting scheme with the goal of optimizing the cost of investment remains to be studied

Method used

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  • Method and device for comprehensively evaluating reliability and economical efficiency of radiation type power distribution network
  • Method and device for comprehensively evaluating reliability and economical efficiency of radiation type power distribution network
  • Method and device for comprehensively evaluating reliability and economical efficiency of radiation type power distribution network

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Embodiment 1

[0046] see figure 1 , figure 1 It is a schematic flowchart of a method for comprehensively evaluating reliability and economy of a radial distribution network based on mixed integer nonlinear programming in an embodiment of the present invention.

[0047] Such as figure 1 As shown, a method for comprehensive evaluation of reliability and economy of radial distribution network based on mixed integer nonlinear programming, the method includes:

[0048] S11: Construct the economic evaluation index based on the investment cost of the reliability transformation plan, the loss cost of the distribution network, the power shortage cost and the configuration cost of the compensation capacitor bank;

[0049] In the specific implementation process of the present invention, the formula for constructing the economic evaluation index based on the investment cost of the reliability transformation scheme, the loss cost of the distribution network, the power shortage cost and the configurati...

Embodiment 2

[0085] see figure 2 , figure 2 It is a schematic diagram of the structural composition of the radial distribution network reliability and economic comprehensive evaluation device based on mixed integer nonlinear programming in the embodiment of the present invention.

[0086] Such as figure 2 As shown, a radial distribution network reliability and economic comprehensive evaluation device based on mixed integer nonlinear programming, the device includes:

[0087] The first building block 21: used to construct an economic evaluation index based on the investment cost of the reliability transformation plan, the loss cost of the distribution network, the power shortage cost and the configuration cost of the compensation capacitor bank;

[0088] In the specific implementation process of the present invention, the formula for constructing the economic evaluation index based on the investment cost of the reliability transformation scheme, the loss cost of the distribution networ...

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Abstract

The invention discloses a method and a device for comprehensively evaluating reliability and economical efficiency of a radiation type power distribution network based on mixed integer nonlinear programming. The method comprises the steps: constructing economical efficiency evaluation indexes based on the combination of reliability transformation scheme investment cost, distribution network loss cost, power shortage cost and compensation capacitor bank configuration cost; constructing evaluation constraint conditions based on physical constraint conditions and reliability constraint conditions; and performing nonlinear integer programming optimization processing by using a Monte Carlo sampling genetic algorithm based on the economic evaluation indexes and the evaluation constraint conditions to obtain an optimal solution of nonlinear integer programming. In the embodiment of the invention, the cost problem in each aspect can be comprehensively considered, so that the optimal scheme for the reliability transformation of a distribution network is sought.

Description

technical field [0001] The invention relates to the technical field of distribution networks, in particular to a method and device for comprehensively evaluating the reliability and economy of radial distribution networks based on mixed integer nonlinear programming. Background technique [0002] In the entire power system, the distribution network, as a link directly connected to power customers, directly affects the power supply of power customers. Therefore, the reliability of distribution network power supply has become the focus of attention of power supply companies and power customers. Through measures such as distribution network reconstruction, improving the level of distribution network technology and equipment, and improving the level of distribution network operation and maintenance, the duration and failure rate of faults can be reduced, thereby improving the reliability of the distribution network. However, in the distribution system planning, how to improve th...

Claims

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Application Information

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IPC IPC(8): G06F30/27G06N3/12G06Q10/00G06Q10/06G06Q50/06G06F111/04G06F111/08G06F113/04G06F119/02
CPCG06F30/27G06N3/126G06Q10/06393G06Q10/20G06Q50/06G06F2111/08G06F2119/02G06F2113/04G06F2111/04
Inventor 欧阳健娜李珊秦丽文陈绍南周杨珺李欣桐
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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