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Multi-parameter identification based secondary system fault diagnosing method for intelligent substation

A smart substation and fault judgment technology, applied in information technology support systems, electrical components, circuit devices, etc., can solve problems such as difficult to locate fault points

Active Publication Date: 2014-09-03
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the self-inspection function of intelligent equipment has been greatly improved, it is difficult to locate the fault point only by relying on the information provided by a single equipment

Method used

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  • Multi-parameter identification based secondary system fault diagnosing method for intelligent substation
  • Multi-parameter identification based secondary system fault diagnosing method for intelligent substation
  • Multi-parameter identification based secondary system fault diagnosing method for intelligent substation

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Experimental program
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Embodiment Construction

[0052] The working principle and implementation of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0053] Such as figure 1 As shown, this method takes the network distribution device as the center, and by analyzing and filtering the SCD file, obtains the associated configuration that needs to evaluate the state of the secondary equipment and configures it in the network distribution device. At the same time, the network distribution device receives information from Various network messages (SV / GOOSE / MMS) of the process layer and the station control layer provide various real-time information and message data after analysis for the expert analysis and diagnosis program.

[0054] The specific implementation is as follows:

[0055] 1. To study the selection method and object of the key state parameters of the secondary equipment, and put forward the requirements for status reporting from the hardware and software ...

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Abstract

The invention discloses a multi-parameter identification based secondary system fault diagnosing method for an intelligent substation. The multi-parameter identification based secondary system fault diagnosing method is mainly applicable to digital substation accordant with IEC61850 communication protocol. The method includes: comprehensively analyzing multi-dimensional parameters including various alarm information, telemeasuring data, telecommand states and the like of a process layer, a spacer layer, a station control layer through a network message recording and analyzing device, monitoring states of secondary devices in real time by utilizing original messages as analysis data and utilizing recording of transient state of device exception and long-term monitoring of operation states as means, and realizing fault diagnosis and state monitoring of the secondary system of the intelligent substation. The multi-parameter identification based secondary system fault diagnosing method for the intelligent substation has the advantages in two aspects including that normal states of the secondary device of the intelligent substation can be monitored, background data and maintenance reference are provided for state maintenance; exception states are identified, quick fault diagnosis is realized, effective instruction can be provided for transport maintenance, and convenience in maintenance of the substation is improved.

Description

technical field [0001] The invention relates to a secondary equipment fault diagnosis and evaluation technology of an intelligent substation based on multi-parameter identification, and is mainly applicable to a digital substation conforming to the IEC 61850 communication protocol. Background technique [0002] With the development of my country's power industry and the application of new technologies, smart substations have become the development trend of future substations and become an important part of a strong smart grid. The smart substation is a key link of the smart grid, and its basic features are intelligent primary equipment, networked secondary equipment, and automated operation and management. [0003] The implementation method of the secondary system of the smart substation is quite different from that of the conventional substation, and the means of identification and disposal of equipment abnormalities by inspection personnel have also changed. Although the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
CPCY04S10/18Y02E60/724Y02E60/723Y04S10/16Y02E60/00
Inventor 高磊冯维纲袁宇波舒怀宋亮亮卜强生曹昊郭锐
Owner STATE GRID CORP OF CHINA
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