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Typhoon meteorological environment power grid equipment fault handling plan online generation method and system and storage medium

A technology of power grid equipment and meteorological environment, applied in data processing applications, instruments, character and pattern recognition, etc., can solve the problems of empirical, qualitative and executable, and achieve the effect of improving risk early warning and pre-control capabilities

Pending Publication Date: 2022-04-01
EAST CHINA BRANCH OF STATE GRID CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the preparation of the existing power grid fault disposal plan mainly depends on the manual compilation of the dispatcher based on the operation experience based on several typical power grid operation modes, and there are insufficient experience, qualitative and executable

Method used

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  • Typhoon meteorological environment power grid equipment fault handling plan online generation method and system and storage medium
  • Typhoon meteorological environment power grid equipment fault handling plan online generation method and system and storage medium
  • Typhoon meteorological environment power grid equipment fault handling plan online generation method and system and storage medium

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Embodiment 1

[0031] like figure 1 As shown, the present invention provides an online method for generating a fault handling plan for typhoon meteorological environment power grid equipment, comprising the following steps:

[0032] Quantitative assessment of faults for typhoon meteorological environment power grid equipment includes the following steps:

[0033] 11) Generate sample data;

[0034] 12) Use sample data to generate several training sets, and use machine learning algorithms to train the risk prediction model;

[0035] 13) Obtain typhoon forecast and measured information in real time, input the trained risk prediction model, and generate online risk warning information for power grid equipment;

[0036] 14) According to the grid equipment risk warning information obtained in step 13), including information such as risk equipment and risk level, generate an N-m expected fault set based on meteorological information;

[0037] Generate a fault plan online, including the following...

Embodiment 2

[0073] In step 23), the performance indicators of the treatment measures are used to evaluate the performance indicators of the security control device control measures and control quantities, and the auxiliary decision-making control measures after the expected failure occurs, including:

[0074] The performance index of equipment overload / section out-of-limit disposal measures is calculated as follows:

[0075]

[0076] where: PI p.j.s is the control performance index of the jth adjustment measure for equipment overload / section out-of-limit; i k1 It is the number of weak equipment with overload / section exceeding the limit of steady-state equipment after the fault occurs; s p.j.i is the sensitivity of the jth optional measure to the active work of the i-th device / section in steady state; λ i is the overload / over-limit margin of the i-th device / section in steady state; P cr.i Safe active power threshold value of the i-th device / section in steady state; G p is the maximu...

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Abstract

The invention discloses a typhoon meteorological environment power grid equipment fault handling plan online generation method and system and a storage medium, and the method comprises the following steps: carrying out the quantitative evaluation of a typhoon meteorological environment power grid equipment fault based on big data, and carrying out the online intelligent generation of a fault plan; the method comprises the steps of sample data generation, risk prediction model training based on a machine learning algorithm, risk prediction model persistence, power grid equipment risk online quantitative early warning, meteorological information-based N-m dynamic fault set generation, initialization mode data qualification rate check, quasi-steady state time domain simulation and power flow information output. And outputting safety control action and auxiliary decision information, and forming a fault plan on line. The method can provide important decision support for power grid dispatching operation risk pre-control.

Description

technical field [0001] The invention relates to an online generation method for a fault disposal plan for power grid equipment in a typhoon meteorological environment, and belongs to the technical field of power grid dispatching. Background technique [0002] Power grid equipment is susceptible to tripping or unplanned forced outages due to severe typhoon weather conditions. A large number of studies have been carried out at home and abroad to determine the probability of outage of transmission lines under severe weather conditions. Existing studies have considered converting the static grid model into a dynamic grid operation mode and integrating it into the operation risk method, but such studies can only estimate the outage probability based on the typical model of the grid equipment, and do not consider the outdoor operation. The micro-meteorology, geographical environment, equipment environmental performance, and equipment fatigue characteristics of the power transmissi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/00G06Q10/06G06Q50/06G06N20/00G06K9/62
Inventor 郑义明周毅庞腊成秦康平滕贤亮孙近文范栋琦闪鑫李雷王波谢丽军黄胜余飞翔陆廷骧沈维健吴自博谈振宁刘栋滕书宇彭宗明
Owner EAST CHINA BRANCH OF STATE GRID CORP
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