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Power grid fault state and fault type detection method

A technology for power grid faults and fault types, applied in fault locations, information technology support systems, etc., to solve problems such as lack of explanation and overview of power grid fault state changes, a large amount of computing time and computing resources, and the inability to meet the business needs of fault monitoring services.

Inactive Publication Date: 2019-05-10
JIANGSU ELECTRIC POWER CO +2
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  • Abstract
  • Description
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Problems solved by technology

[0005] However, in the existing technology, statistical analysis techniques are generally used to detect the fault state of the power grid, and there is a lack of explanation and overview of the actual power grid fault state changes.
In addition, the existing technology needs to repeatedly perform conditional independence hypothesis testing and marginal probability calculations. These calculations generally require a large amount of computing time and computing resources, which cannot meet the business needs of fault monitoring business functions.

Method used

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Embodiment

[0024] The detection method of the power grid fault state and fault type in this embodiment, such as figure 1 shown, including the following steps:

[0025] (1) Establish a finite state automata model; specifically: establish a millisecond-level real-time power grid fault state monitoring model between the actual power grid fault states at different times when the target fault occurs; exhaustively obtain all possible occurrences in the local power grid system The fault types of each fault type, the actual power grid fault state corresponding to each time from the fault start time to the fault termination time obtained for each fault type, and the various fault states of the sequential equipment after the fault are modeled as a finite state automaton Model.

[0026] (2) Establish a standard database; specifically: obtain the possible fault types entered by the user into the power grid system, and the preset grid fault status corresponding to the possible fault type; the preset...

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Abstract

The invention relates to a power grid fault state and fault type detection method. The method comprises steps of establishing a model, establishing a standard database, obtaining an actual grid faultstate of a target fault at different time, searching and obtaining a target fault type and the like. The power grid fault state and fault type detection method analyzes and summarizes the relationshipbetween actual grid faults and fault types of the target fault, analyzes the fault state of the actual fault state at different time, and improves support of power grid fault detection technology formillisecond real-time control service in the prior art, thereby improving fault abnormity event disposal efficiency and improving technical support level for safe and stable operation of a power grid.

Description

technical field [0001] The invention relates to a detection method of a power grid fault state and a fault type, and belongs to the technical field of power grid automatic dispatching. Background technique [0002] In recent years, with the in-depth development of smart grid, smart substation and distribution network automation construction, and the application of advanced communication technologies represented by power system general service protocol, IEC 61850 communication protocol, data model description E language, etc., power grid operation, transmission Information such as power transformation and distribution equipment is increasing exponentially, and the demand for big data analysis technology suitable for power regulation business is constantly growing. [0003] Among them, the intelligent dispatching control system (D5000), dispatching management system (OMS) of the large operation system, the integrated control system of the intelligent substation, the PMS of the...

Claims

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Application Information

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IPC IPC(8): G01R31/08
CPCY04S10/52
Inventor 王勇张明蒋宇赵扬武江林海峰谭琛娄天月潘小辉朱红勤
Owner JIANGSU ELECTRIC POWER CO
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