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Station level switch test system and test method for hybrid communication capability and port mirror image bearing capacity thereof

A technology for testing systems and switches, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve the problems of less test content of station control layer switches and failure to effectively detect the use of equipment in smart substations, so as to reduce abnormal operation. the effect of the situation

Active Publication Date: 2021-04-30
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, the test content of the station control layer switch is less, and the use of its equipment in the smart substation has not been effectively detected

Method used

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  • Station level switch test system and test method for hybrid communication capability and port mirror image bearing capacity thereof
  • Station level switch test system and test method for hybrid communication capability and port mirror image bearing capacity thereof
  • Station level switch test system and test method for hybrid communication capability and port mirror image bearing capacity thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A performance test system for a station control layer switch, including an auxiliary test device, a packet capture system and a network message analysis device;

[0051] The packet capture system captures the running messages received in the substation station control layer center switch in normal operation, and imports the running messages into the auxiliary test device;

[0052] The auxiliary test device outputs the operation message to the center switch of the station control layer to be tested through a single or multiple ports;

[0053] The auxiliary test device simulates the basic message of the switch and outputs the basic message to the center switch of the station control layer through a single or multiple ports;

[0054] The network message analysis device receives all the messages output by the center switch of the station control layer and some messages output by the auxiliary test device, and the network message analysis device performs statistical analysis...

Embodiment 2

[0063] According to embodiment 1, first set up the photoelectric converter packet capture system, connect with the substation station control layer center switch through the photoelectric converter optical port, the packet capture system grabs the message received in the normal operation substation station control layer center switch, and its report The main form of the text is the MMS station control layer message.

[0064] Such as figure 1 As shown, the schematic diagram of the packet capture system and the port mirroring capacity test of the switch. When the port mirroring capacity of the station control layer switch is to be tested, the test steps include:

[0065] S1. Configure network tester A and network tester B, import the MMS message in the computer into network tester A and network tester B, and the SourceIP of the imported MMS message should be different. The configuration is shown in the table below.

[0066]

[0067]

[0068] S2, configure the control lay...

Embodiment 3

[0079] According to embodiment 1, the station control layer switch MMS message and GOOSE message mixed communication ability test is to connect with the station control layer switch by network cable through the network tester, and the digital relay protection tester is connected with the station control layer switch by optical fiber, The station control layer switch is configured with all ports capable of sending and receiving data. It is connected to the network packet analysis device through the output port of the station control layer switch.

[0080] figure 2 It is the principle wiring diagram of the mixed communication capability test of the MMS message and GOOSE message of the station control layer switch. The test steps for the mixed communication capability test of the MMS message and GOOSE message of the station control layer switch include:

[0081] S1. Import the MMS message obtained in the substation into the network tester, and use it as background traffic to in...

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Abstract

The invention discloses a station control layer switch test system and a hybrid communication capability and port mirror image bearing capacity test method thereof. The method comprises the steps: carrying out the upgrading and reconstruction of a conventional test system, and setting a grabbing system to grab a message received in a transformer substation station control layer central switch in normal operation; comprehensively reflecting real messages and data of the transformer substation in combination with an auxiliary testing device; employing the port mirroring bearing capacity testing method for testing whether a mirroring destination port or a to-be-tested station control layer switch can normally work or not after data flow is increased and changed due to an emergency network event in an intelligent substation; employing the hybrid communication capability test method for performing the flow test and GOOSE delay capability test under various different flows so as to achieve the transmission capability of a transformer substation for MMS messages and GOOSE messages. According to the invention, the effective operation message and the simulated basic message are combined for testing, so that the performance of the station level switch for the intelligent substation is mastered more comprehensively, and the abnormal operation condition of the intelligent substation is reduced.

Description

technical field [0001] The invention relates to the technical field of automatic equipment debugging for intelligent substations, in particular to a test system for a station control layer switch and a test method for its hybrid communication capability and port mirroring capacity. Background technique [0002] As an important automation device in the "three-layer and three-network" of smart substations, the station control layer switch is an important transmission device for station control layer messages, and is a key device for information transmission between equipment at the interval layer and station control layer equipment, and becomes the key to the normal operation of smart substations. The essential. The networking mode of the station control layer of the smart substation system is mainly connected to the equipment at each bay layer through the network cable. The bay layer equipment establishes communication links with the background and remote places through the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H02J13/00
CPCH04L43/50H04L43/08H02J13/00006Y04S10/16
Inventor 王大兴刘学文林波李汶蒿钟威石涛吴杰
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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