A self-diagnosis method for network sampling and control links of smart substations

A technology for smart substations and control links, applied in data exchange networks, electrical components, digital transmission systems, etc., can solve problems such as lack of substation network detection and fault diagnosis technology, substation safety hazards, etc., to improve the level of intelligence, improve reliability effect
CN103457791BActive Publication Date: 2016-09-28STATE GRID CORP OF CHINA +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2016-09-28

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Abstract

The present invention provides an intelligent substation network sampling and control link self-diagnosis method, comprising the following steps: IEC61850 communications protocol analysis; independent diagnosis and test of a control link, to find a network fault; SNMP-based network fault diagnosis; and network fault management. The present invention provides an intelligent substation network sampling and control link self-diagnosis method. The present invention can timely find various network faults during network operation, position and troubleshoot the faults, and further manage and record network fault information, thereby further ensuring application reliability and security of network sampling and network control in a substation, and improving intelligence of the substation.
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Description

technical field

[0001] The invention belongs to the technical field of electric power automation, and in particular relates to a self-diagnosis method for network sampling and control links of intelligent substations. Background technique

[0002] The use of the IEC61850 standard promotes the development of process-level bus technology, and promotes the development of substation network communication from serial port connection and field bus to Ethernet transmission, which greatly improves the overall level of substation automation, because sampling and control information can be transmitted through the network. Effectively reducing complex cable connections in substations not only helps to simplify the structure of the whole substation, but also effectively reduces the construction cost of substations. More importantly, it can promote the development of advanced application functions of substations and further improve the overall level of substations.

[0003] In May 2009, ...

Claims

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