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Power grid fault type determining method and device

A technology for power grid faults and power grids, applied in the direction of fault locations, etc., can solve the problems of increased redundant information, increased time and energy consumption of big data, low efficiency of fault diagnosis and analysis, etc., to achieve the effect of rapid determination

Inactive Publication Date: 2017-08-22
TSINGHUA UNIV +2
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  • Claims
  • Application Information

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Problems solved by technology

As the amount of data increases, the amount of information contained in the data is also greater, but the redundant information is also multiplied, and the time and energy spent on fault diagnosis of big data are also multiplied.
[0008] Therefore, traditional technical solutions have the defect of low efficiency for fault diagnosis and analysis based on big data

Method used

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  • Power grid fault type determining method and device
  • Power grid fault type determining method and device
  • Power grid fault type determining method and device

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Embodiment 1

[0031] refer to figure 1 , Embodiment 1 of the present invention specifically includes the following steps:

[0032] 101. Obtain grid data within a preset time period;

[0033] In this step, grid data may be collected from a monitoring system in the grid system, such as a wide area information system WAMS. The preset time period may be 10s, which may be adjusted according to actual conditions.

[0034] Wherein, the grid data may be at least one of the following: voltage, current, active power, and reactive power.

[0035] For example, the grid data can be voltage, current, active power, reactive power and their derivatives, and the collected grid data can be a high-dimensional matrix, that is, the grid data can be voltage, current , active power, reactive power four data high-dimensional matrix.

[0036] 102. Based on the first spatial distribution determination rule, determine a target spatial distribution corresponding to the grid data;

[0037] In this step, a manifold...

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Abstract

The invention provides a power grid fault type determining method and device. The method comprises the steps that power grid data in a preset time period are acquired; target spatial distribution corresponding to the power grid data is determined based on a first spatial distribution determination rule; based on the target spatial distribution and the pre-determined correspondence between the power grid fault type and the spatial distribution, the power grid fault type corresponding to the power grid data is determined. According to the method provided by the invention, the target spatial distribution corresponding to the power grid data is determined; and based on the pre-determined correspondence between the power grid fault type and the spatial distribution, the power grid fault type is quickly determined.

Description

technical field [0001] The invention relates to the technical field of power grid faults, in particular to a method and device for determining a power grid fault type. Background technique [0002] The whole composed of substations of various voltages and transmission and distribution lines in the power system is called the power grid. It includes three units of power transformation, power transmission and power distribution. The task of the grid is to transmit and distribute electrical energy and to change the voltage. Power grid fault diagnosis is to analyze the action information of various protection devices and circuit breakers at all levels and the measurement information of electrical quantities such as voltage and current, and infer the possible fault location and fault type according to the logic of the protection action and the experience of the operating personnel. The dispatcher's decision provides relevant criteria. When the power grid fails, accurate, fast a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
Inventor 曹军威赵兵兵胡俊峰谢挺郭明星梅东升陈裕兴
Owner TSINGHUA UNIV
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