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Method and device for restoring fault distribution network

A distribution network and fault technology, applied in the field of electric power, can solve problems such as the inability to effectively reduce the impact of line faults on power outage users, and achieve the effects of improving power supply reliability indicators, fast positioning, and improving power supply reliability

Inactive Publication Date: 2017-11-03
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a method and device for recovering a faulty distribution network to solve the problem that the existing technology cannot effectively reduce the impact of line faults on power outage users

Method used

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  • Method and device for restoring fault distribution network
  • Method and device for restoring fault distribution network
  • Method and device for restoring fault distribution network

Examples

Experimental program
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Embodiment Construction

[0031] Restoration of faulty distribution network refers to finding the optimal restoration scheme for non-faulty power outage areas based on the current network topology and power flow distribution after isolating the faulty equipment and satisfying the safety constraints of the faulty distribution network. The power grid is reconfigured.

[0032] see figure 1 , is a flow chart of a method for recovering a faulty distribution network provided by the present application. Such as figure 1 As shown, the method includes:

[0033] Step 101, obtain the outage area of ​​the fault distribution network and the contact switch in the outage area.

[0034] This application adopts a heuristic search method, and first searches out the power supply area affected by the fault, that is, the power outage area, according to the fault situation. The contact switch includes the switch inside the power failure area, the switch connecting the power failure area to other areas, and the switch co...

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Abstract

The invention discloses a method and device for restoring fault distribution network and relates to the technical field of electric power with an aim to solve the problem that impact on power failure users due to line fault cannot be effectively reduced in the prior art. The method mainly includes: acquiring power supply interrupted regions of the fault distribution network and interconnection switches of the power supply interrupted regions; according to the power supply interrupted regions and the interconnection switches, generating a power supply restoring plan referring to on-off states of the interconnection switches; according to the preset evaluation function, selecting power supply restoring circuits included in the power supply restoring plan; according to the power supply restoring circuits, restoring the fault distribution network. The method is mainly applicable to the power supply restoring process of the fault distribution network.

Description

technical field [0001] The present application relates to the field of electric power technology, and in particular to a method and device for recovering a faulty distribution network. Background technique [0002] The distribution network is the terminal network of the power system, directly contacting users, supplying electric energy to users and distributing electric energy. The distribution network mostly adopts a radial mesh structure, which is sensitive to faults and has a great impact on the reliability of power supply for users. When a fault occurs in the distribution network, quickly detect and locate the fault, restore the normal power supply of the non-faulty part, and avoid large-scale and long-term power outages. important goals. [0003] Distribution network fault recovery is to find the optimal recovery plan for non-fault power outage areas according to the current network topology and power flow distribution after isolating the faulty equipment and satisfyi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20Y04S10/52
Inventor 沈鑫闫永梅周年荣张林山曹敏赵旭邹京希魏龄
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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