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Method for Predicting Abnormal State of Power System Operation

A technology of abnormal operation and power system, applied in the direction of information technology support system, electrical components, circuit devices, etc., can solve problems such as abnormal operation status and failure, and achieve the effect of accurate and reliable early warning

Active Publication Date: 2022-06-07
厦门盈盛捷电力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All electrical components, equipment and systems are usually in normal operation, but may also be faulty or abnormal

Method used

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  • Method for Predicting Abnormal State of Power System Operation
  • Method for Predicting Abnormal State of Power System Operation
  • Method for Predicting Abnormal State of Power System Operation

Examples

Experimental program
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Embodiment 1

[0024] Please refer to figure 1 and figure 2 , showing a power system fault diagnosis expert system provided by the present invention.

[0025] The power system fault diagnosis expert system includes a diagnosis system master station. In this embodiment, the diagnosis system master station is directly set by using the network of the dispatch master station (or the centralized control master station) (hereinafter collectively referred to as the dispatch master station).

[0026] figure 1 In the figure, the left side of the dashed line is the structure of the dispatching master station, and the right side of the dashed line is the diagnosis system master station of the fault diagnosis expert system.

[0027] Depend on figure 1 It can be known that the main station of the diagnosis system in this embodiment is hung in the network structure of the dispatching main station.

[0028] like figure 1 As shown, the corresponding dispatch master station may include: a dispatch mast...

Embodiment 2

[0052] The second embodiment of the present invention provides a method for estimating abnormal operation state of a power system. Please refer to image 3 , the estimation method includes:

[0053] S1, create a historical case database for expert diagnosis, the historical case database is divided into voltage level level, substation level and interval level, and each level has multiple level nodes;

[0054] S2, fill in the data content of each historical case to the level node corresponding to each level respectively according to the voltage level level, the substation level and the interval level;

[0055] S3, in the historical case database, perform big data analysis on the operating state values ​​of each of the hierarchical nodes of each type of disturbance before the disturbance occurs, and calculate the disturbance warning threshold of each operating state value;

[0056] S4, collect the panoramic information of the user power grid in real time, and compare the panora...

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Abstract

The method for estimating the abnormal state of power system operation includes: creating a historical case library for expert diagnosis, the historical case library is divided into voltage level level, substation level and interval level, and each level has multiple level nodes; The data content of the historical cases is respectively filled in the hierarchical nodes corresponding to each level; in the historical case library, the operation state values ​​of the various types of disturbances before the occurrence of the disturbance are analyzed by big data, and the operation state of each operation state is calculated. The value of the disturbance warning threshold; real-time collection of panoramic information of the user grid; when a certain operating status value of the panoramic information exceeds its corresponding disturbance warning threshold, a disturbance warning is issued. The estimation method can provide the user with an estimation of the occurrence of the disturbance, and remind the user to take measures in time to prevent the occurrence of the disturbance.

Description

technical field [0001] The invention relates to the field of power system fault diagnosis, in particular to a method for estimating abnormal state of power system operation. Background technique [0002] The power system is a system formed by connecting many power stations, substations, distribution stations and users by transmission and distribution lines. It usually consists of generators, transformers, bus bars, transmission and distribution lines and electrical equipment. Various electrical components, equipment and systems are usually in normal operation, but may also malfunction or abnormally operate. [0003] Power system failure refers to a state in which electrical components and equipment cannot work according to expected indicators, that is to say, electrical components and equipment fail to achieve the functions they should achieve. Faults include generator set faults, transformer faults, transmission line faults, Substation faults and busbar faults, etc. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00G01R31/08
CPCH02J3/001H02J3/0012G01R31/086Y04S10/52
Inventor 袁甄刘以成游木森
Owner 厦门盈盛捷电力科技有限公司
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