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Method and system for quickly positioning anticipated fault of power grid

A technology of predicting faults and locating methods, applied in transmission systems, electrical components, instruments, etc., can solve problems such as reducing workload, analyzing the risk causes of weak links in the power grid, and judging blind spots in predicted faults, so as to reduce workload and quickly locate. Effect

Pending Publication Date: 2022-03-01
SHENZHEN POWER SUPPLY BUREAU
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Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a method and system for quickly locating predicted faults in the power grid, which not only reduces the workload, but also realizes accurate and fast positioning, thereby solving the blind spot of artificially judging predicted faults in the prior art problems, which is conducive to the follow-up analysis of the risk causes of weak links in the power grid

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  • Method and system for quickly positioning anticipated fault of power grid
  • Method and system for quickly positioning anticipated fault of power grid

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, in the embodiment of the present invention, a method for quickly locating a predicted fault in a power grid is proposed, and the method includes the following steps:

[0033] Step S1. In the current calculation cycle time, obtain the power grid operation status and its associated data, and calculate the real-time failure rate of the faulty equipment corresponding to each preset expected fault according to the grid associated data, and further calculate each The preset expected faults respectively correspond to the severity function values ​​in the operating state of the power grid;

[0034] Step S2, according to the real-time failure rate of the faulty equipment corresponding to each preset expected fault and the severity functio...

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Abstract

The invention provides a power grid anticipated fault rapid positioning method, which comprises the following steps: acquiring a power grid operation state and associated data thereof in a current calculation period moment so as to calculate a real-time failure rate of fault equipment corresponding to each preset anticipated fault and a severity function value corresponding to the power grid operation state; according to the real-time failure rate and the severity function value of the fault equipment, obtaining a risk index value of each preset anticipated fault corresponding to the power grid operation state, and obtaining a risk curve of each preset anticipated fault; and before the next calculation period arrives, screening out the risk curve meeting the predetermined condition, and extracting the expected fault corresponding to the screened risk curve to give an alarm. By implementing the method, not only is the workload reduced, but also accurate and rapid positioning can be realized, so that the problem that blind spots appear in the anticipated fault through manual judgment in the prior art is solved, and the risk reason analysis of the subsequent weak link of the power grid is facilitated.

Description

technical field [0001] The invention relates to the technical field of electric power maintenance, in particular to a method and system for quickly locating expected faults in a power grid. Background technique [0002] In order for the dispatcher to grasp the operation status of the power grid in real time and make effective control measures in time, it is obviously not enough to rely solely on offline risk assessment and configuration of control measures. [0003] With the development of dispatching automation system, online risk assessment and early warning of regional power grids become possible. Online risk assessment needs to enable dispatchers to grasp important risks, output risk change curves, high-risk and high-risk expected fault change curve charts, and reflect the operating status of the power grid in real time. [0004] However, in the prior art, locating the predicted faults that have the greatest impact on the operation risk of the power grid is judged by hu...

Claims

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Application Information

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IPC IPC(8): G06Q50/06G06Q10/06H04L41/0677
CPCG06Q50/06G06Q10/0635G06Q10/06393H04L41/0677
Inventor 何晓峰程维杰马伟哲程韧俐陈择栖翁毅选刘金生刘振兴龚晨林小朗郑晓辉吴新宋俊文
Owner SHENZHEN POWER SUPPLY BUREAU
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