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Method for acquiring network data and analyzing network performance for digital substation

A substation network and network performance technology, applied in the field of power information automation, can solve the problems of incompatibility between network and communication protocols, poor system scalability, and difficulty in sharing information.

Inactive Publication Date: 2010-06-02
ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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Problems solved by technology

[0002] In the power system, the conventional substation automation system has the following problems: (1) The networks and communication protocols used by different equipment manufacturers are incompatible with each other, and the interoperability between equipment is poor; (2) Information is difficult to share; (3) The system has poor scalability Wait
This is a serious challenge for network management in digital substations

Method used

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  • Method for acquiring network data and analyzing network performance for digital substation
  • Method for acquiring network data and analyzing network performance for digital substation

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Embodiment Construction

[0016] The specific implementation of the digital substation network data acquisition and network performance analysis method of the present invention includes the following steps:

[0017] 1. Set the working mode of the network card

[0018] In the embodiment of the present invention, the working mode of the network card is first set, and the network card is forced to work in a promiscuous mode to receive all data passing through the network device.

[0019] 2. Use network sniffing technology to capture network packets

[0020] After setting the network card to work in promiscuous mode, all data frames will be uploaded to the network layer by the network card driver. After the packet data arrives at the network layer, the network layer processing program also needs to judge its destination IP address. If it is a local IP, it will be uploaded to the transport layer for processing (the transport layer will then decide which upper layer application to process the data packet ac...

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Abstract

The invention discloses a method for acquiring network data and analyzing network performance for a digital substation, which comprises the following steps: acquiring station control layer network messages and process layer network messages of the digital substation by forcibly setting a network card working mode and adopting the network sniffing technology, carrying out statistical analysis on communication network messages, and then, evaluating the network performance. The invention does not need to change the original network topologic structure of the digital substation and finishes the capture of station control layer network data and process layer network data under the condition that the normal operation of the substation is not influenced, thereby realizing the purposes of testing and evaluating the communication network performance and realizing the high degree of integration between the communication network and the digital substation. The method of the invention is suitable for acquiring network data and analyzing network performance for a digital substation of an electric power system.

Description

technical field [0001] The invention relates to a network data acquisition and network performance analysis method for digital substations in electric power systems, belonging to the technical field of electric power information automation. Background technique [0002] In the power system, the conventional substation automation system has the following problems: (1) The networks and communication protocols used by different equipment manufacturers are incompatible with each other, and the interoperability between equipment is poor; (2) Information is difficult to share; (3) The system has poor scalability Wait. In order to solve these problems, realize the interoperability of equipment in the substation automation system, at the same time meet the needs of free distribution of protection measurement and control functions among different equipment, and maintain the long-term stability of the system, the 57th technical committee of the International Electrotechnical Commissio...

Claims

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Application Information

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IPC IPC(8): H02J13/00H04L12/26
CPCY02E60/723Y04S10/16Y02B70/30Y02E60/00Y04S20/20
Inventor 苏永春孙旻辛建波郑蜀
Owner ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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