Automatic transmission line fault diagnosis and fault positioning method and system

An automatic fault diagnosis and fault location technology, applied in the direction of fault location, etc., can solve the problems of low accuracy of positioning algorithm, difficulty in multi-terminal and multi-variable station ranging, etc., and achieve stable and reliable performance, reasonable design structure, and strong sharing Effect

Inactive Publication Date: 2015-12-16
SHANDONG HISING POWER TECH CO LTD
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  • Abstract
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Problems solved by technology

[0008] 2. The positioning algorithm based on wave recording or protection has low accuracy. For a single substation and protection, it is difficult to measure distance between multi-terminal and multi-substations

Method used

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  • Automatic transmission line fault diagnosis and fault positioning method and system
  • Automatic transmission line fault diagnosis and fault positioning method and system
  • Automatic transmission line fault diagnosis and fault positioning method and system

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Embodiment Construction

[0059] The present invention is described in detail below in conjunction with accompanying drawing:

[0060] Combining the phasor fault location algorithm and fault diagnosis method, the present invention proposes an automatic fault diagnosis and fault location system and method for transmission lines. , reclosing, and switch state actions, through the interface with the fault information system, the system calls the relevant protection or wave recording files in real time and stores them in the SQL database of the system, and automatically selects the appropriate line model and algorithm for fault diagnosis and fault diagnosis. Positioning calculation, the calculation results are stored in the SQL database of the system, and the analysis results are released to the dispatcher in real time and displayed on the satellite map with the tower position, and sent to the contact person by SMS notification to achieve the purpose of real-time fault diagnosis and positioning.

[0061] l...

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Abstract

The invention discloses an automatic transmission line fault diagnosis and fault positioning method and a system. A system line model is built; when an EMS line tripping signal is sent, EMS data are analyzed, and an analysis result is stored to a database; while the EMS line tripping signal is sent, a fault recorder generates a fault recording file, file management is triggered for fault diagnosis and fault positioning, and the result is stored to the database; a client displays the fault diagnosis and fault positioning result via a browser interface in combination with a satellite map, and the fault diagnosis and fault positioning result is sent in a corresponding short message notification format. By adopting concentrated vector fault recording positioning, problems existing in traveling wave positioning and a fault recording or protection positioning method can be effectively overcome, and positioning accuracy is greatly improved.

Description

technical field [0001] The invention relates to a transmission line automatic fault diagnosis and fault location method and system. Background technique [0002] For many years, transmission line fault diagnosis and location has been the concern of power system researchers and power equipment manufacturers. Real-time and accurate fault location plays an important role in quickly finding fault points, repairing damaged lines, and improving system reliability. However, due to the influence of environmental factors and the power system itself, there is still a lot of work to be done in the fault diagnosis and fault location of transmission lines. [0003] With the rapid development of computer technology, communication technology, and network technology, a large amount of power grid measurement data can be collected in real time and sent to the control center. This has laid a solid foundation for the research of real-time positioning system based on multiple systems. At pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
Inventor 王连成代桃桃
Owner SHANDONG HISING POWER TECH CO LTD
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