Multi-user electric energy data depth analysis-based voltage sag detection method

A voltage sag and detection method technology, applied in the direction of measuring electrical variables, measuring electricity, measuring devices, etc., can solve the problem of insufficient accuracy of the voltage sag detection method, achieve real-time and accuracy advantages, and high detection accuracy , The effect of convenient data collection

Active Publication Date: 2019-10-01
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0004] In order to overcome the defect that the accuracy of the voltage sag detection method described in the prior art is not high enough, the present invention provides a voltage sag detection method based on in-depth analysis of multi-user electric energy data

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  • Multi-user electric energy data depth analysis-based voltage sag detection method
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  • Multi-user electric energy data depth analysis-based voltage sag detection method

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[0036] The accompanying drawings are for illustrative purposes only and cannot be construed as limiting the patent;

[0037] In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0038] For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings.

[0039] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] refer to Figure 1-3 , this embodiment provides a voltage sag detection method based on in-depth analysis of multi-user electric energy data. This implementation method is mainly based on the power energy data of massive users, assigning different fault factors according to the load deviation rate of each period, and finally correlating and analyzing the time sequence diagram of fault ...

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Abstract

The invention relates to a multi-user electric energy data depth analysis-based voltage sag detection method. According to the method, depth analysis processing is carried out on the electric load data information of multiple users in a certain area so as to correctly detect the voltage sag faults in the area. According to the method, electric load information of each special transformer user is firstly acquired; the data of each special transformer user is stored in a server for data preprocessing; depth analysis processing is carried out on each piece of preprocessed user information; and finally electric energy quality fault type matching is carried out according to the processing result so as to judge whether voltage sag faults or other faults occur in the area or not. The method has the advantages of being high in detection correctness and convenient in data acquisition, and is capable of modifying the fault matching model according to the newest research achievement so as to further improve the detection correctness.

Description

technical field [0001] The invention relates to the field of regional power quality fault identification, and more specifically, to a voltage sag detection method based on in-depth analysis of multi-user power data. Background technique [0002] Voltage sag is a serious power quality problem that frequently occurs in power systems. According to statistics, economic losses caused by voltage sags account for 70% to 90% of all economic losses caused by power quality problems. The main cause of the voltage sag fault is the short circuit fault of the power supply system and the user's internal equipment. [0003] The traditional voltage sag detection method is still insufficient in real-time and accuracy. Facing the increasing power quality requirements of users and engineering requirements for real-time and accuracy of voltage sag fault detection, it is urgent to propose a more Optimized voltage sag detection method. Contents of the invention [0004] In order to overcome th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 陈贤熙刘昊刘少辉吴焯军李雷梁年柏
Owner GUANGDONG POWER GRID CO LTD
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