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Low-voltage early warning method and device based on time series

A technology of time series and time series model, applied in the direction of measuring device, measuring current/voltage, fault location, etc., can solve problems such as low voltage early warning of distribution network

Inactive Publication Date: 2018-01-23
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

[0004] This application provides a low voltage early warning method and device based on time series to solve the low voltage early warning problem of distribution network

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  • Low-voltage early warning method and device based on time series
  • Low-voltage early warning method and device based on time series
  • Low-voltage early warning method and device based on time series

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Embodiment Construction

[0020] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0021] see figure 1 , is a schematic flowchart of a time-series-based low-voltage early warning method provided in the embodiment of the present application.

[0022] In step S100, a plurality of voltage monitoring data at the end voltage monitoring points of the distribution network are acquired.

[0023] The low-voltage early warning device based on time series is installed on the distributi...

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Abstract

The present invention discloses a low-voltage early warning method and device based on a time series. The method comprises a step of acquiring a plurality of voltage monitoring data at a voltage monitoring point of a distribution network terminal, a step of carrying out differential operation on the plurality of voltage monitoring data to obtain a stable voltage monitoring sequence, a step of carrying out time series modeling on the stable voltage monitoring sequence of the voltage monitoring point to obtain a time series model, and a step of carrying out low-voltage early warning according tothe time series model. According to the low-voltage early warning method and device based on a time series, the low-voltage early warning is effectively realized.

Description

technical field [0001] The present application relates to the field of low voltage early warning, in particular to a low voltage early warning method and device based on time series. Background technique [0002] The low-voltage risk of the power system reflects the possibility and degree of harm caused by the system to cause the bus voltage drop in the system. In recent years, some major power outages at home and abroad have caused huge losses in social life and economy. The need for an early warning system for online security. [0003] At present, the voltage online monitoring data of the voltage monitoring point can only reflect the voltage situation of the voltage monitoring point, and cannot play an early warning role for the occurrence of low voltage. Prevent the occurrence of low voltage. Therefore, research and establishment of online monitoring data of voltage monitoring points, low voltage early warning method and technology based on time series, realize low volt...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08G01R19/165
Inventor 郭成周鑫赵泽平覃日升段锐敏
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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