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Power distribution network protection and self-healing method, device and system and storage medium

A technology of distribution network and terminal device, applied in emergency protection circuit device, circuit device, system integration technology, etc., can solve problems such as imperfect protection strategy of distribution network, and achieve the effect of reducing line loss

Pending Publication Date: 2022-05-10
STATE GRID JIBEI ELECTRIC POWER COMPANY LIMITED CHENGDE POWER SUPPLY +1
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  • Claims
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Problems solved by technology

[0006] The embodiment of the present invention provides a distribution network protection and self-healing method, device, system, and storage medium, which are used to solve the problem of incomplete protection strategies for distribution networks with distributed power sources in the prior art

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  • Power distribution network protection and self-healing method, device and system and storage medium
  • Power distribution network protection and self-healing method, device and system and storage medium
  • Power distribution network protection and self-healing method, device and system and storage medium

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Embodiment Construction

[0046] In the following description, specific details such as specific system structures and techniques are presented for illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0047] In order to make the purpose, technical solution and advantages of the present invention more clear, the following will describe through specific implementation manners in conjunction with the accompanying drawings.

[0048] Below the embodiment of the present invention is described in detail, and this example is carried out under the premise of technical solution of the present invention, has provided detail...

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Abstract

The invention relates to the technical field of power distribution network protection, in particular to a power distribution network protection and self-healing method, device and system and a storage medium, the method is applied to a power distribution network with a distributed power supply, the distributed power supply of the power distribution network is connected through a connection line, so that the arrangement of grid-connected lines can be reduced, a grid-connected looped network can be selected, and the power distribution network protection and self-healing efficiency can be improved. The capacity of a line needing capacity increasing is increased, and line loss caused by long-distance power supply can be reduced. Based on the network topology form, according to the method, a protection strategy and a self-healing method are given according to the two most common forms of power supply transfer and non-power supply transfer in combination with the distributed power supply, and the problem that the protection strategy of the power distribution network with the distributed power supply is prone to causing maloperation or rejection of operation of a protection device is solved.

Description

technical field [0001] The invention relates to the technical field of distribution network protection, in particular to a distribution network protection and self-healing method, device, system and storage medium. Background technique [0002] Distribution automation is an important part of the smart grid, and its core is distribution network fault handling, which is of great significance for improving power supply reliability, expanding power supply capacity and realizing efficient and economical operation of the power grid. The traditional current protection principle is based on the voltage and current detection of independent units. The coordination between protection depends on the action current setting and the corresponding delay, and does not care about the protection action of adjacent switches. In the case of multi-level switches running in series, the position and operation mode of tie switches are often changed, and a large number of distributed power sources ar...

Claims

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Application Information

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IPC IPC(8): H02H7/26H02H7/22H02J13/00H02J3/00H02J3/06H02J3/38
CPCH02H7/262H02H7/22H02J13/0004H02J3/0073H02J3/06H02J3/381Y02E40/70Y02E60/00Y04S10/12Y04S10/20
Inventor 李岩张士然孔庆泽张勇张利锋迟承哲王海燕和娟刘阳李宁王坤隆唐博张添洋
Owner STATE GRID JIBEI ELECTRIC POWER COMPANY LIMITED CHENGDE POWER SUPPLY
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