A power system fault handling method, device and terminal equipment

A fault handling method and power system technology, which can be applied to fault locations, emergency protection circuit devices, electrical components, etc., and can solve problems such as the expansion of power outages

Active Publication Date: 2021-07-06
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a power system fault handling method, device and terminal equipment to solve the problem in the prior art that when there is a fault in the overlapping protection range, the unnecessary power outage range expands

Method used

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  • A power system fault handling method, device and terminal equipment
  • A power system fault handling method, device and terminal equipment
  • A power system fault handling method, device and terminal equipment

Examples

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Embodiment 1

[0025] figure 1 Schematic diagram of the implementation flow of the power system fault handling method provided by the embodiment of the present invention, see figure 1 , the power system fault handling method may include:

[0026] Step S101 , monitoring the protection trip information of the power system, and determining the position and state of the circuit breaker according to the protection trip information.

[0027] Wherein, the protection tripping information may include action information of a plurality of line protection devices; step S101 may include: determining the position and state of the circuit breaker that tripped according to the action information of a plurality of line protection devices in the protection tripping information ; The state of the circuit breaker may include a three-phase position and a single-phase position of the circuit breaker.

[0028] optional, image 3 The schematic diagram of the main wiring of the substation provided for the embodim...

Embodiment 2

[0063] Figure 4 It is a schematic diagram of a power system fault processing device provided by an embodiment of the present invention, which is used to execute figure 1 The method steps in the corresponding embodiment. Such as Figure 4 As shown, in this embodiment, the power system fault processing device 4 may include a system monitoring module 41 , a collection and judgment module 42 and a control and location module 43 .

[0064] The system monitoring module 41 is used to monitor the protection tripping information of the power system, and determine the position and state of the circuit breaker according to the protection tripping information.

[0065] The collection and judgment module 42 is used to collect the current information of the current transformers on both sides of the circuit breaker corresponding to the position of the circuit breaker after monitoring the protection tripping information, and according to the current information of the current transformers ...

Embodiment 3

[0070] Figure 5 A schematic diagram of a terminal device provided by an embodiment of the present invention. Such as Figure 5As shown, in this embodiment, the terminal device 5 includes: a processor 50 , a memory 51 , and a computer program 52 stored in the memory 51 and operable on the processor 50 . When the processor 50 executes the computer program 52, it realizes the steps in each embodiment as described in Embodiment 1, for example figure 1 Steps S101 to S103 are shown. Alternatively, when the processor 50 executes the computer program 52, it realizes the functions of each module / unit in the embodiment of the power system fault handling device, for example Figure 4 The functions of modules 41 to 43 are shown.

[0071] Exemplarily, the computer program 52 can be divided into one or more modules / units, and the one or more modules / units are stored in the memory 51 and executed by the processor 50 to complete this application. The one or more modules / units may be a ...

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Abstract

The invention is applicable to the technical field of electric power system relay protection, and discloses a power system fault processing method, device and terminal equipment. The method includes: monitoring the protection trip information of the power system, determining the position and state of the circuit breaker according to the protection trip information; collecting the current information of the current transformers on both sides of the circuit breaker corresponding to the position of the circuit breaker, and determining the Judging whether there is a fault within the overlapping protection range based on the current information and protection trip information; if there is a fault, detect the state of the relevant line protection device and / or send a control command to the first circuit breaker, and when the state of the relevant line protection device meets the corresponding When the preset condition and / or the response information of the first circuit breaker based on the control instruction meets the corresponding preset condition, the fault point is located according to the current information of the current transformers on both sides of the first circuit breaker and the preset logical relationship. The above method can effectively detect faults in the overlapping protection range.

Description

technical field [0001] The invention belongs to the technical field of power system relay protection, and in particular relates to a power system fault handling method, device and terminal equipment. Background technique [0002] In recent years, power grid relay protection equipment has achieved significant development. However, according to relevant national regulations and rules and regulations, the current design idea of ​​power grid relay protection equipment is to prevent the occurrence of protection dead zones and allow the protection ranges of different protection equipment to cross. overlapping. It is precisely because of the cross-overlapping characteristics of the protection range that when a fault occurs within the overlapping protection range, multiple line protection devices will act simultaneously or successively to remove the fault, resulting in redundant operation of the protection line protection device and expanding the scope of power outages, which is not...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08H02H7/28
Inventor 张惠山朱卫民王昭雷王永红王亚强韩辰龙付炜平张玉亮孟荣马宜军
Owner STATE GRID CORP OF CHINA
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