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Method and device for voltage quality cause analysis

A technology of reason analysis and voltage quality, which is applied in the field of big data processing, can solve problems such as misjudgment and failure to analyze the cause of voltage quality, and achieve the effect of a reasonable decision tree

Active Publication Date: 2019-01-11
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When there is a situation outside the range set by the fixed program, the analysis of the cause of the voltage quality cannot be analyzed or a wrong judgment will be made

Method used

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  • Method and device for voltage quality cause analysis

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Such as figure 1 As shown, a device for voltage quality cause analysis includes an expert data input module 101 , an expert data storage module 102 , a decision tree generation module 103 , a decision tree storage module 104 , a decision tree analysis module 105 and an analysis result evaluation module 106 . The expert data input module 101 is used to acquire expert experience data.

[0018] The expert experience data obtained by the expert data input module 101 is the initial expert experience data, which can be entered manually, or edited into text in a specific format or Excel table data for input. Expert experience data consists of voltage index data, voltage quality cause analysis results, and scoring values. The voltage index data is usually composed of multiple voltage index conditional statements, for example, the average value of the output voltage is...

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Abstract

The present invention discloses a voltage quality reason analysis method and a device thereof. The method comprises the steps of obtaining expert empirical data, then generating a decision tree, analyzing inputted voltage indicator data according to the generated decision tree, analyzing the obtained voltage quality reason analysis result and then getting the score of the result by the staff, and storing the score value into an expert empirical database. According to the method and the device, the score value is used as the weight of decision tree generation, thus the generated decision tree is more reasonable, at the same time, decision trees are subjected to iterative accumulation according to an analysis result, and thus a decision tree analysis result is more close to the reality.

Description

technical field [0001] The invention relates to big data processing, in particular to the application of machine learning in voltage quality cause analysis. Background technique [0002] A decision tree is a decision support tool that utilizes a tree-like graph or decision model. Decision tree learning is a machine learning method that uses decision trees as predictive models. At present, machine learning algorithms are increasingly used in various fields of big data processing. [0003] Under the existing technology, most of voltage quality cause analysis needs to rely on manual work. Machine-implemented voltage quality cause analysis is usually set by a fixed program. When a situation outside the range set by the fixed program occurs, the voltage quality cause analysis cannot be analyzed or wrong judgments will be made. [0004] It is a great means to introduce machine learning algorithms, especially decision tree learning algorithms, into voltage quality cause analysi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/06
Inventor 于永军祁晓笑王琛朱建华郑少鹏王芳楠赵子龙秦艳辉刘大贵焦春雷杜波罗耀强罗定志査鸣李敏
Owner STATE GRID CORP OF CHINA