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Online measuring alarming method based on intelligent substation switch latency

A technology of smart substations and switches, applied in data exchange networks, electrical components, digital transmission systems, etc., can solve problems such as the inability to display network message delays, and the difficulty in providing operators with message delay windows, etc., to achieve Real-time online measurement and the effect of avoiding operation accidents

Active Publication Date: 2013-03-27
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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Problems solved by technology

Although these offline methods of calculating the switch delay can obtain the exchange delay information of the computer, and can also provide data sources for the study of the switch delay, they cannot obtain the delay of the network packets in the field online, and it is difficult to provide it to the operator. A window for personnel to check the delay of messages in the network at any time, unable to display the delay of network messages, and it is difficult to remind operators to take corresponding measures when the network delay exceeds the predetermined threshold to avoid accidents in substation operation

Method used

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  • Online measuring alarming method based on intelligent substation switch latency
  • Online measuring alarming method based on intelligent substation switch latency
  • Online measuring alarming method based on intelligent substation switch latency

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Embodiment Construction

[0049] In the actual smart substation, the communication network composed of switches often adopts the star connection mode. For the star connection switch communication network, the network packet analyzer is used to measure the delay of the switch online. The topology diagram is as follows image 3 .

[0050] Observed image 3 It can be seen from the topology diagram shown that this method does not affect the original topology of the network, which is one of the advantages of this method.

[0051] In this embodiment, the specific implementation steps of using the network packet analyzer to perform switch delay measurement online are as follows:

[0052] 1) By observing the network topology diagram, confirm that the number of switches is 5, and connect the network packet analyzer to each switch of the local network;

[0053] 2) The network packet analyzer is powered on and starts to receive the packets sent from each switch;

[0054] 3) The network packet analyzer accurate...

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Abstract

The invention discloses a method for measuring switch latency of an intelligent substation by utilizing a network message analyzer to analyze message passing a switch. Online measuring of switch latency is achieved, and alarming can be sent when latency border crossing occurs. In addition, the original topological structure of the switch communication network is unaffected.

Description

technical field [0001] The invention relates to a measurement technology for the transmission delay of an Ethernet exchange, in particular to an online measurement and alarm method for the delay of an exchange constituting a communication network of an intelligent substation. Background technique [0002] With the increasing size of the power grid and the rapid development of network communication technology, the emerging smart substation is an important driving force for the development of smart grid. Based on Ethernet communication technology, smart substation provides a higher level of information sharing between primary equipment and secondary equipment and secondary equipment. High real-time requirements. On the basis of summarizing the communication services involved in the substation automatic system, IEC 61850 makes detailed regulations on the types of communication messages and the transmission time requirements: according to the requirements of real-time function...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/24
Inventor 高新华刘玮陈炯聪黄曙胡春潮冯善强竹之涵苏忠阳马文霜高学强
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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