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SCD-based relay protection system reliability online evaluation system

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: 2015-06-03
福建永福数字能源技术有限公司
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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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  • SCD-based relay protection system reliability online evaluation system
  • SCD-based relay protection system reliability online evaluation system
  • SCD-based relay protection system reliability online evaluation system

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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 method, 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...

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Abstract

An SCD-based relay protection online reliability evaluation system in the field of electrical power systems comprises a net communication module, a man-machine interface module, a model analyzing module, a data processing module and a reliability evaluation module; an SCD file is analyzed to acquire a construction scheme of a protection system and primary elements, and the construction scheme is converted into an RBD (Reliability Block Diagram); SV, GOOSE and MMS messages reflecting the running state of the protection system are processed into intermediate data needed by reliability calculation, and static and online reliability evaluation analysis on the protection system is finished based on a reliability analysis theory, the RBD and a reliability algorithm. Static and online reliability evaluation on the protection system of an intelligent substation is realized, hidden danger of the relay protection system can be effectively found, a foundation is laid for reliability analysis-based state evaluation, the availability ratio of the relay protection system is improved, and reliable guarantee is provided for safe operation of a 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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IPC IPC(8): G06F19/00
Inventor 高翔
Owner 福建永福数字能源技术有限公司
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