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Fault positioning method, device and equipment based on voltage time type or current type

A technology of fault location and voltage time, which is applied in the direction of fault location, circuit device, emergency protection circuit device, etc., can solve the problem of inaccurate judgment of fault location

Inactive Publication Date: 2021-07-23
ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a fault location method, device and equipment based on the voltage time type or current type, which is used to solve the inaccurate fault location technology for the existing power distribution master station system to judge the fault location of the voltage time type or current type line question

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  • Fault positioning method, device and equipment based on voltage time type or current type
  • Fault positioning method, device and equipment based on voltage time type or current type
  • Fault positioning method, device and equipment based on voltage time type or current type

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Embodiment 1

[0033] figure 1 It is a flow chart of the steps of the fault location method based on voltage time type or current type described in the embodiment of the present invention, figure 2 It is a distribution line topology diagram of the fault location method based on voltage-time type or current type according to the embodiment of the present invention.

[0034] Such as figure 1 As shown, the embodiment of the present invention provides a fault location method based on voltage time type or current type, which is applied to the distribution line. The distribution line includes a first feeder switch and a plurality of automatic switches. After the distribution line fails , the fault location method includes the following steps:

[0035] S10. Acquiring the first switching states of each automatic switch according to the failure of the power distribution line and the tripping of the first feeder switch.

[0036] Such as figure 2 As shown, in this embodiment, the power distributi...

Embodiment 2

[0050] Figure 4 It is a frame diagram of a fault location device based on a voltage-time type or a current type according to an embodiment of the present invention.

[0051] Such as Figure 4 As shown, the embodiment of the present invention also provides a fault location device based on voltage time type or current type, which is applied to the distribution line. The distribution line includes a first feeder switch and a plurality of automatic switches. After the distribution line fails , the fault location device includes a first state acquisition module 10, a second state acquisition module 20, a fault location module 30, a fault isolation module 40 and a recovery power supply module 50;

[0052] The first state obtaining module 10 is used to obtain the first switch state of each automatic switch according to the failure of the power distribution line and the tripping of the first feeder switch;

[0053] The second state acquisition module 20 is used to obtain the second...

Embodiment 3

[0060] An embodiment of the present invention provides a computer-readable storage medium. The computer storage medium is used to store computer instructions, which when run on a computer, enable the computer to execute the above voltage-time or current-based fault location method.

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Abstract

The invention relates to a fault positioning method, device and equipment based on voltage time type or current type, and the method comprises the steps: obtaining a first switch state of each automatic switch according to a fault of a distribution line and tripping of a first feeder switch; reclosing and starting the first feeder switch, and obtaining a second switch state and a third switch state of each automatic switch; the first switch state of the adjacent upstream automatic switch being an opening state, the second switch state being a closing state, the third switch state being an opening state, and the first switch state, the second switch state and the third switch state of the adjacent downstream automatic switch being all opening states; a connecting line between the adjacent upstream automatic switch and the downstream automatic switch being a fault line, and therefore, the fault range of the power distribution line can be confirmed, and the technical problem that the existing power distribution master station system is inaccurate in fault judgment and positioning of a voltage time type or current type line is solved.

Description

technical field [0001] The invention relates to the technical field of line fault location, in particular to a voltage-time or current-based fault location method, device and equipment. Background technique [0002] The existing self-healing technology for the main station is based on the degree of coordination between the main station and the local. There are three types: station and voltage-time / current coordination type, master station and differential protection coordination type, master station and intelligent distributed coordination type. Among them, the master station and the voltage-time / current cooperative type have a wide range of applications. In the self-healing mode of the master station and the voltage-time / current cooperative type, the power distribution terminal completes fault location and isolation on the spot, and the master station completes non-stop The faulty section is switched to power supply and restoration. [0003] The current on-site fault loca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08G01R31/58H02H7/26H02H3/06
CPCG01R31/085G01R31/58H02H7/26H02H3/066Y04S10/52
Inventor 林敏洪陈建钿侯祖锋杨叶昕缪辰宇凌华保吴奇真
Owner ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO