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Link detection method for process-level switch of intelligent substation and switch

A technology of intelligent substation and link detection, applied in data exchange networks, electrical components, digital transmission systems, etc., can solve problems such as errors and data transmission confusion, and achieve the effect of preventing confusion and ensuring reliable operation.

Inactive Publication Date: 2017-04-19
XUCHANG XJ SOFTWARE TECH +3
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a link detection method and switch for a smart substation

Method used

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  • Link detection method for process-level switch of intelligent substation and switch
  • Link detection method for process-level switch of intelligent substation and switch

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[0030] The present invention will be further described in detail below in conjunction with the drawings.

[0031] The process layer link detection method of the smart substation of the present invention includes the following steps:

[0032] 1. The configuration machine reads the system configuration information of the whole station, according to the system configuration information of the whole station, selects the configuration network port and link related information according to the needs, generates a file, and customizes the file format to PCFG, and sends the file to switch. The switch reads and stores this file.

[0033] Among them, configuration network port and link related information includes:

[0034] 1) Correspondence between nodes and ports: the link unique identification tag APPID in the Ethernet message.

[0035] 2) Node attribute information:

[0036] SV link configuration information includes link destination MAC address, link SVID, link VLAN number, link channel numb...

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Abstract

The invention discloses a link detection method for a process-level switch of an intelligent substation and a switch. The link detection method comprises the steps of firstly reading and storing configuration Ethernet port and link related information; then receiving an Ethernet packet sent by a merging unit or an intelligent terminal, and performing CRC verification and data length verification; directly discarding the Ethernet packet if the Ethernet packet is not verified; otherwise, performing classification on the Ethernet packet, and judging whether the Ethernet packet is an SV packet or a GOOSE packet; and if the Ethernet packet is parsed to be an SV packet or a GOOSE packet, performing frame format verification on the SV or GOOSE packet according to a corresponding standard packet frame format definition, and alarming if the SV or GOOSE packet is not verified; and otherwise, performing node legality verification, and alarming if the SV or GOOSE packet is not verified. The link detection method performs detection on the process-level link state in a layer-to-layer progressive mode, and prevents occurrence of a circumstance that the link state and data transmission are disordered and incorrect, and thus reliable running of process-level equipment is ensured.

Description

technical field [0001] The invention relates to a link detection method of an intelligent substation process layer switch and the switch, belonging to the technical field of power system automation. Background technique [0002] With the large-scale promotion of smart substations in China, the number of application of process layer switches is increasing, and the industrial Ethernet switches that meet the requirements of the IEC61850 standard are becoming more and more important in substations, and have become indispensable for the safe and stable operation of substations. missing important component. The smart substation uses switches at the process layer to realize the information interconnection of protection devices, measurement and control devices, merging units, and intelligent terminals. Therefore, the process layer switch is the key link for reliable protection and correct delivery of remote control commands. [0003] At present, in the smart substation, the link st...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/24H04L1/00
Inventor 易永辉李仲青于同伟窦中山吴双惠李贞姜帅卜银娜蒋怀贞张鹏远陈志宏
Owner XUCHANG XJ SOFTWARE TECH
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