Diagnosis analysis method and system for power grid faults

A technology for diagnosing and analyzing power grid faults, applied in fault location, information technology support system, fault detection by conductor type, etc. ability, strong technical support, and the effect of ensuring safe and stable operation

Inactive Publication Date: 2019-07-30
YUNNAN POWER GRID
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, since the research on smart substations at this stage still corresponds to primary equipment and secondary equipment respectively, it is impossible to maximize the use of the rich information provided by smart substations, resulting in the reliability of the existing grid fault diagnosis analysis methods for grid fault diagnosis results. Reliability is poor

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  • Diagnosis analysis method and system for power grid faults
  • Diagnosis analysis method and system for power grid faults
  • Diagnosis analysis method and system for power grid faults

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Embodiment Construction

[0024] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] like figure 1 As shown, an embodiment of the present invention provides a power grid fault diagnosis and analysis method, including:

[0026] S1, acquire the wave recording information collected by the fault wave recording device connected in the power grid after the fault occurs, analyze the wave recording information, and ...

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Abstract

The embodiment of the invention provides a diagnosis analysis method and a system for power grid faults. By acquiring the wave record information collected by a fault wave-recording device access to apower grid after faults occur, the wave record information is analyzed to determine information contained in the wave record information such as the fault location, the fault type, the fault current,and the fault voltage in the grid. The wave record information is matched with the knowledge information in a knowledge library to find the knowledge information matching with the wave record information in the knowledge library. The known faulty device corresponding to the obtained knowledge information is the faulty device in the power grid. The method can quickly realize the diagnosis and analysis of power grid faults, and plays a strong supporting role for the follow-up accident treatment conducted by an operator, offers a powerful technical support for the operation and dispatching of the power grid, improves the diagnosis and analysis capability to power grid faults, and thus can guarantee the safe and stable operation of the power grid.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of power grid fault diagnosis, and more particularly, to a power grid fault diagnosis and analysis method and system. Background technique [0002] At present, with the increase in the number of smart substations built in various regions, a large number of new technologies and equipment have been applied and promoted. [0003] In the context of smart substations, smart sensing technology and network technology are widely used in various smart devices, so the data that can be monitored is becoming more and more abundant. Take a 220kV substation network recording and analysis system as an example, the recorded data volume in 24 hours can reach about 740GB. At the same time, under the same specification of the IEC61850 standard, information transmission is carried out by means of optical fiber digitalization, which brings flexibility to the access and distribution of various informati...

Claims

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Application Information

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IPC IPC(8): G01R31/08
CPCG01R31/088G01R31/086Y04S10/52
Inventor 张琳波李本瑜石恒初游昊赵明陈剑平杨远航罗吉
Owner YUNNAN POWER GRID
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