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On-line Evaluation System of Reliability of Relay Protection System Based on SCD

A protection system and relay protection technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of not solving online reliability assessment, not proposing a protection system reliability assessment plan, and not involving information processing mechanisms and other issues to achieve the effect of improving availability

Active Publication Date: 2017-06-16
SHANGHAI YIHAO AUTOMATION CO LTD
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AI Technical Summary

Problems solved by technology

However, this technology only realizes static reliability evaluation, and does not solve the problem of online reliability evaluation; secondly, it does not propose an interval-based protection system reliability evaluation scheme; thirdly, it does not involve the information processing mechanism that reflects the protection operation status

Method used

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  • On-line Evaluation System of Reliability of Relay Protection System Based on SCD
  • On-line Evaluation System of Reliability of Relay Protection System Based on SCD
  • On-line Evaluation System of Reliability of Relay Protection System Based on SCD

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Embodiment 1

[0025] Such as figure 1 As shown, the present embodiment includes: a network communication module, a man-machine interface module, a model analysis module, a data processing module, and a reliability evaluation module, wherein: the man-machine interface module outputs the received SCD file to the model analysis module and receives data from The basic components analyzed by the model analysis module, the man-machine interface module conducts reliability modeling on the basic components according to the reliability analysis theory and the human-computer interaction mode, and sends the reliability model of the basic components to the reliability evaluation module; model analysis The module analyzes the received SCD file to obtain the configuration plan of the protection system, converts it into the RBD of the protection system, and outputs it to the reliability evaluation module; the network communication module collects the original report reflecting the operation status of the p...

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Abstract

An SCD-based online reliability evaluation system for relay protection in the field of power systems, including: a network communication module, a man-machine interface module, a model analysis module, a data processing module, and a reliability evaluation module. The present invention obtains protection by analyzing SCD files. The system composition plan and basic components are converted into RBD; the SV, GOOSE, MMS messages reflecting the operating status of the protection system are processed into the intermediate data required for reliability calculation, and based on the reliability analysis theory, RBD and reliability algorithm, the Static and online reliability evaluation and analysis of various protection systems, the present invention realizes static and online reliability evaluation of intelligent substation protection systems, can effectively find hidden dangers in relay protection systems, lays the foundation for state evaluation based on reliability analysis, and improves The availability rate of the relay protection system provides a reliable guarantee for the safe operation of the power grid.

Description

technical field [0001] The invention relates to a relay protection reliability evaluation technology in the technical field of power systems, in particular to an SCD-based relay protection system reliability online evaluation system. Background technique [0002] The main components of microcomputer protection are electronic components, but for a long time, the reliability evaluation of microcomputer protection has only stayed at the stage of theoretical analysis, and has not entered the field of practical engineering applications. The composition of the intelligent substation protection system based on the IEC61850 standard is far more complicated than that of the conventional comprehensive system. For example, physical devices such as merging units, intelligent terminals, and process layer switches have been added, and the protection has appeared "direct mining and direct jumping", "direct mining and network jumping", " Different application modes of network mining and net...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 高翔
Owner SHANGHAI YIHAO AUTOMATION CO LTD
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