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Selective adaptive cross-site ring network system fault handling method

A system failure and self-adaptive technology, applied in emergency protection circuit devices, electrical components, etc., can solve problems such as improper coordination and expansion of power outage range, and achieve the effect of ensuring rationality, reducing power outage range, and ensuring removal.

Active Publication Date: 2020-03-31
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present disclosure proposes a selective adaptive cross-site ring network system fault handling method to solve the problem of expanding the scope of power outages due to improper coordination of protection devices in the cross-site ring network during fault handling in the cross-site ring network question

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  • Selective adaptive cross-site ring network system fault handling method
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  • Selective adaptive cross-site ring network system fault handling method

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Embodiment Construction

[0030] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0031] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0032] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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Abstract

The present invention relates to a selective adaptive cross-station ring network system fault processing method. The method comprises the steps of: establishing a cross-station ring network system topology model; collecting related parameters of devices in the cross-station ring network system topology model; operating basic logic criterion according to the related parameters to generate an operation result; emitting alarm according to the operation result or outputting control signals corresponding to the operation result to a protection device in the cross-station ring network system topology model. The selective adaptive cross-station ring network system fault processing method achieves monitoring, alarm and processing of the ring network operation, and can adaptively regulate the selectivity cooperation relation of the protection devices according to the change of the related parameters when the ring network generates faults and in the fault processing process so as to ensure the reasonability of the selectivity cooperation of the protection devices and reduce the outage range to the maximum extent.

Description

technical field [0001] The invention belongs to the technical field of electric power system relay protection and safety automatic control, and in particular relates to a selective self-adaptive cross-site ring network system fault processing method. Background technique [0002] Usually, the selectivity of relay protection can ensure that the relay protection devices at all levels in the power grid cooperate with the upper and lower levels according to the set values ​​such as their respective action values ​​and action time, so as to realize accurate judgment of fault points and removal of main and backup actions, achieving as much as possible The purpose of reducing the scope of power outages. The principle of selectivity can be well implemented in the same substation and within the protection range of multiple protection devices in the same direction. However, in the cross-site ring network, due to the change of network parameters during the fault handling process, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/26H02H7/28
CPCH02H7/262H02H7/263H02H7/28
Inventor 成琳魁张华年时伯年秦红霞徐刚
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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