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Monitoring method across switches in intelligent substation

A technology of smart substations and switches, applied in data exchange networks, electrical components, digital transmission systems, etc., to achieve the effect of saving construction costs and simple and convenient operation

Active Publication Date: 2013-12-18
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to ensure the correctness of the data and record the data completely, the station control layer of the smart substation usually monitors the messages of the station control layer network through a network analyzer. Generally, the mirroring method is used to only monitor the data on the same switch, and for cascaded There are few good ways to monitor the data on the switch, both the integrity of the data and the uniqueness of the data must be considered

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Embodiment

[0035] The network tester is connected to port fe0 of switch A. The cascaded ports of switch A and switch B are fe1 of A and fe2 of B respectively. The tester monitors the data sent by the protection and measurement and control on switch B. The steps are as follows: Create a VLAN on switch B with an ID of 100, add fe2 to the VLAN with the mode as ACCESS, create a VLAN on switch B with an ID of 200, Add fe3 and fe4 to the VLAN, the mode is ACCESS, create port mirroring on switch B, the source ports are fe3 and fe4, and the mirroring mode is input data flow mirroring. Create VLAN on switch A with ID 300, add fe0 to this VLAN, mode is ACCESS, create VLAN on switch A, ID is 400, add fe1 to this VLAN, mode is ACCESS, create ports on switch A For mirroring, the source port is fe1, the destination port is fe0, and the mirroring mode is input traffic monitoring mode. Check and save the configurations of the two switches.

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Abstract

The invention relates to a monitoring method across switches in an intelligent substation. The monitoring method comprises the following steps: (1) the VLAN of a cascading port_b of the switch B is set; (2) the VLANs of other ports on the switch B are set; (3) mirror images of the other ports on the switch B are set; (4) the VLAN ID of a monitoring port of the switch A is set; (5) a cascading port_a of the switch A is set as another VLAN ID; (6) the mirror image of the cascading port_a is set. By means of the monitoring method, the monitoring of network messages across the switches by a station level of the intelligent substation can be realized effectively, the situation that an intelligent device on the far-end switch sends all the network messages can be effectively monitored, and repetitive messages cannot be received. The design scheme of the monitoring method is not just limited to the condition that two switches are in cascading connection, but can be extended to the condition of a network across the multiple switches.

Description

technical field [0001] The invention belongs to an electric power communication system, and in particular relates to a monitoring method for a mid-span switch in an intelligent substation. Background technique [0002] With the gradual application of IEC61850, the current intelligent substation automation system is generally divided into station control layer, interval layer and process layer. The process layer mainly completes functions related to primary equipment such as sampling of analog quantities, switching input and output, and sending of operation control commands. The interval layer summarizes the real-time data of the process layer, receives commands from the station control layer and sends commands to the process layer. [0003] The station control layer is the monitoring and management center of the whole station, which provides a man-machine interface to realize the management and control of the bay layer, and communicates with the dispatching center or central...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L29/12
Inventor 王向群李春龙黄治孙晓艳王鹤张增华吴军民张刚黄辉黄在朝于海虞跃姚启桂喻强任杰陈伟于鹏飞邓辉吴鹏王玮沈文侯功陶静刘川陈磊
Owner STATE GRID CORP OF CHINA
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