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A common interface transmission method for sv direct sampling and goose message

A transmission method and message technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problems of time stamp confusion during resampling of SV and GOOSE messages, achieve shortened transmission delay, small transmission delay, easy-to-achieve effects

Inactive Publication Date: 2017-10-31
XUJI GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a common port transmission method for SV direct sampling and GOOSE messages, so as to solve the problem that the current general Ethernet controllers cannot recognize the SV and GOOSE messages when resampling and the time scale is confused.

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  • A common interface transmission method for sv direct sampling and goose message
  • A common interface transmission method for sv direct sampling and goose message
  • A common interface transmission method for sv direct sampling and goose message

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Embodiment Construction

[0017] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] The SV direct sampling and GOOSE common port transmission method of the present invention is proposed on the basis of analyzing the SV direct sampling scheme and the GOOSE transmission mechanism. The accuracy of the receiving time stamp, and the special communication service mapping of the GOOSE message determines a special retransmission scheme. Under normal circumstances, the GOOSE message is retransmitted every 5s, and the data flow generated is very small. However, when a fault occurs, It is possible that multiple switching signals are shifted, resulting in a large data flow. The communication model and message frame format of the SV direct sampling and GOOSE messages are exactly the same, and the insulation length may be calculated according to the project configuration, but the SV direct sampling messages only transmit analog qu...

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Abstract

The invention relates to a common-port transmission method for SV direct mining and GOOSE messages, and belongs to the technical field of relay protection for intelligent substations in electric power systems. According to the transmission characteristics of SV direct sampling and GOOSE messages, the present invention, on the basis of ensuring the accuracy of SV sending time, time-division multiplexes the transmission channel, and transmits and receives GOOSE messages between two frames of SV messages, and according to The specific project configuration file dynamically calculates the number of GOOSE frames inserted between two frames of SV messages, maximizes the use of the transmission bandwidth of the channel, shortens the transmission delay of GOOSE signals, and utilizes the message receiving mechanism of the Ethernet controller to communicate with the FPGA through the FPGA. The resampling time stamp confusion problem caused by the SV and GOOSE packets that the Ethernet controller cannot recognize. Moreover, the GOOSE transmission delay of the present invention is small, does not involve hardware modification, simple software processing, high reliability, easy implementation, and can be widely popularized.

Description

technical field [0001] The invention relates to a common-port transmission method for SV direct mining and GOOSE messages, and belongs to the technical field of relay protection for intelligent substations in electric power systems. Background technique [0002] In the new generation of smart substations with the technical characteristics of "reasonable structural layout, highly integrated system, advanced technical equipment, economy, energy saving and environmental protection, and integrated support and regulation", in order to meet the requirements of high The requirements for construction, operation and maintenance of maintenance, comprehensive support for the integration of regulation and control, and the transformation of the development mode of the power grid, proposed the integration of intelligent terminals and merging unit devices at the process level of the system with a voltage level of 110kV and below, SV direct procurement reports and GOOSE reports at this inter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/861H04L29/06
Inventor 郝慧贞李宝伟张项安倪传坤李文正唐艳梅石欣姜自强都磊冉志勇董新涛李杰
Owner XUJI GRP
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