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Relay protection debugging method of smart substation

An intelligent substation and relay protection technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as in-depth analysis obstacles, achieve low power consumption, good compression effect, and ensure reliability and rapidity Effect

Inactive Publication Date: 2018-08-31
CHENGDU TENGDA SCI & TECH
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Problems solved by technology

[0005] The fault waveform data is sampled at high speed, and the comprehensive analysis of the waveform data generated by different devices puts forward high requirements on the clock accuracy, which creates obstacles for in-depth analysis

Method used

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  • Relay protection debugging method of smart substation
  • Relay protection debugging method of smart substation
  • Relay protection debugging method of smart substation

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Embodiment Construction

[0045] figure 1 It shows a handheld intelligent substation relay protection debugging device of the present invention, the system includes an intelligent detector 1 and an analysis and debugging system 2;

[0046] The smart detector 1 includes:

[0047] The detection module 11 is used to obtain the waveform information of the relay protection device in real time;

[0048] Data conversion module 12, is used for converting waveform information into waveform data in real time;

[0049]A data compression module 13, configured to compress the waveform data;

[0050] The detection data sending module 15 is used to send the compressed waveform data to the analysis and debugging system through the wireless communication network;

[0051] The terminal control module 14 is used for the work of each module in the intelligent detector;

[0052] The analysis and debugging system 2 includes:

[0053] The detection data receiving module 21 is used to receive the waveform data sent by th...

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Abstract

The invention discloses a relay protection debugging method of a smart substation. On the basis of a substation SCD file and fault waveform data, a debugging configuration file of a to-be-debugged relay protection device is generated intelligently, so that repeated manual configuration is avoided. With a data compression module, the method has characteristics of low power consumption, small calculation amount, and high compression ratio according to a front-back waveform differential compression algorithm based on waveform periodic characteristics; the waveform data compression effect is good;and the manufacturing cost of the relay protection fault recording and playback system is lowered substantially. Fault waveform data of a period of time before and after a fault time are extracted from all fault recording files; fault feature quantity calculation of all primary equipment components is carried out by using primary equipment components as units so as to form intermediate data, so that the own restriction of the fault recording file is eliminated. The waveform data are analyzed from multiple aspects; recording sampling information is digitized and quantized by using different dimensions of feature quantities to obtain multi-dimension fault feature quantities, so that high reliability and quickness are ensured.

Description

Technical field [0001] The invention relates to the field of relay protection, in particular to an intelligent substation relay protection debugging method. Background technique [0002] In recent years, the relevant professional technology of intelligent substation has made great progress. Intelligent electronic devices (IED) such as electronic transformers, merging units, and intelligent terminals are widely used, and the layout of intelligent electronic devices is also transitioning from secondary small rooms to outdoor cabinets and prefabricated cabins. Relay protection has been gradually paid attention to. [0003] However, in related technologies, the installation and commissioning of on-site relay protection devices have problems such as quick action, reduced system stability and reliability, high failure rate, complex on-site commissioning and maintenance, long time for installation and power failure, and maintenance after abnormalities Problems such as the complic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 滕维
Owner CHENGDU TENGDA SCI & TECH
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