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Power system operation abnormal state estimation method

A technology for abnormal operation and power system, applied in information technology support systems, electrical components, circuit devices, etc., can solve problems such as abnormal operation states and faults, and achieve accurate and reliable early warning.

Active Publication Date: 2020-12-08
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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  • Power system operation abnormal state estimation method
  • Power system operation abnormal state estimation method
  • Power system operation abnormal state estimation method

Examples

Experimental program
Comparison scheme
Effect test

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 master station of the diagnosis system, and the master station of the diagnosis system in this embodiment is directly set up by using the network of the dispatcher master station (or called centralized control master station) (hereinafter collectively referred to as the dispatcher master station).

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

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

[0028] Such as figure 1 As shown, the corresponding dispatching...

Embodiment 2

[0052] Embodiment 2 of the present invention provides a method for estimating an abnormal operation state of a power system. Please refer to image 3 , the estimation method includes:

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

[0054] S2. Fill in the data content of each historical case in the corresponding level nodes of each level according to the voltage level level, the substation level and the interval level;

[0055] S3, in the historical case library, perform big data analysis on the operating status values ​​of the nodes at each level before the disturbance occurs for various types of disturbances, and calculate the disturbance warning thresholds for each operating status value;

[0056] S4. Collect the panorama information of the user power grid in real time, and compare the panorama information with the...

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Abstract

The invention discloses a power system operation abnormal state estimation method which comprises the steps of creating a historical case library for expert diagnosis, wherein the historical case library is divided into a voltage level, a substation level and an interval level, and each level is provided with a plurality of level nodes; respectively filling the data content of each historical caseinto a hierarchical node corresponding to each level; in the historical case library, carrying out big data analysis on the operation state value of each hierarchical node before the disturbance of each type occurs, and calculating a disturbance early warning threshold value of each operation state value; acquiring panoramic information of a user power grid in real time; and when a certain running state value of the panoramic information exceeds the disturbance early warning threshold corresponding to the running state value, sending out disturbance early warning. According to the estimationmethod, the estimation of disturbance can be provided for the user, the user is reminded to take measures in time, and disturbance is prevented.

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 with transmission and distribution lines. It usually consists of generators, transformers, busbars, transmission and distribution lines, and electrical equipment. Various electrical components, equipment and systems are usually in normal operating condition, but they may also experience faults or abnormal operating conditions. [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 do not achieve the functions they should achieve. Faults include generator set failures, transformer failures, transmission line failures, Substati...

Claims

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Application Information

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Patent Type & Authority Applications(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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