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Intelligent substation sampling loop fault determination method based on homologous data comparison

A technology of intelligent substation and data comparison, applied in circuit devices, data processing applications, electrical components, etc., to achieve the effect of improving the level of safe operation and improving the efficiency of maintenance

Active Publication Date: 2019-07-12
HONGHE POWER SUPPLY BUREAU OF YUNNAN POWER GRID
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  • Abstract
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Problems solved by technology

Solved the problem of real-time automatic judgment and timely warning of faults in the sampling circuit of smart substations

Method used

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  • Intelligent substation sampling loop fault determination method based on homologous data comparison
  • Intelligent substation sampling loop fault determination method based on homologous data comparison

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Embodiment Construction

[0044] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the examples. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0045] The intelligent substation sampling circuit fault judgment method based on homologous data comparison provided by the present invention, such as figure 1 shown, including the following steps:

[0046] Step 1, homologous data configuration;

[0047] Step 2, collecting signal packets;

[0048] Step 3, parsing the homologous data after receiving the signal message, the homologous data of the same data source includes the first homologous data and the second homologous data;

[0049] Step 4, judging whether the amplitude and phase angle of the first homologous data and the se...

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Abstract

The invention discloses an intelligent substation sampling loop fault determination method based on homologous data comparison. The method comprises a step of performing homologous data configuration,a step of collecting a signal packet, a step of parsing homologous data after receiving the signal packet, wherein the homologous data of the same data source includes first homologous data and second homologous data, a step of determining whether the amplitudes and phase angles of the first homologous data and the second homologous data are valid or not, and a step of calculating a comparison result of the first homologous data and the second homologous data according to a homologous data matching model, determining an alarm state, and determining whether a sampling loop is failed. Accordingto the method, the real-time monitoring and intelligent diagnosis of an intelligent substation sampling loop are facilitated, and the operation and maintenance efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of intelligent operation and maintenance diagnosis of intelligent substations, in particular to a fault determination method for sampling loops of intelligent substations based on homologous data comparison. Background technique [0002] The secondary equipment of the smart substation adopts a three-layer structure, namely: station control layer, interval layer, and process layer. Among them, the secondary equipment of the process layer is responsible for the collection of signals such as voltage, current analog quantity, switch quantity and tripping, and transmits the collected signals to the bay layer equipment, such as protection, measurement and control and other IED equipment. As one of the most important devices in the process layer, the merging unit is responsible for the synchronous acquisition of the voltage and current analog quantities of the substation, and then transmits the collected results to...

Claims

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Application Information

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IPC IPC(8): H02J13/00G06Q50/06G06Q10/00
CPCG06Q10/20G06Q50/06H02J13/0006Y02E60/00Y04S10/16Y04S10/50
Inventor 李远喻立刘云涛陈爱民李虹
Owner HONGHE POWER SUPPLY BUREAU OF YUNNAN POWER GRID
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