Intelligent substation gateway system implementation method supporting protocol replacement

Abstract

The invention discloses an intelligent substation gateway system implementation method supporting protocol replacement, which comprises the following steps of: importing an intelligent substation SCD (Substation Configuration Description) file, and extracting all related IED (Intelligent Electronic Device) configurations; initializing a protocol data interaction area, and setting an upper channel mark and a lower channel mark of each IED; starting a lower protocol processing task and an upper protocol processing task, and initializing all related IED configurations; regularly judging and selecting a lower channel and an upper channel of the protocol data interaction area; and when the lower channel and the upper channel are established successfully at the same time, the protocol data interaction area completes automatic selection and communication of the upper channel and the lower channel of each IED, thereby realizing forwarding transmission of in-station communication data and out-station communication data. According to the invention, the gateway system supports the plug-and-play replacement of the in-station device and the out-of-station communication protocol, the configuration is not changed after the protocol is replaced, the power failure debugging is avoided, and the self-adaptive replacement of the protocol is completed under the condition that the restart initialization is not needed.

Description

technical field [0001] The invention relates to the technical field of intelligent substation automation, in particular to an implementation method of an intelligent substation gateway system supporting protocol replacement. Background technique [0002] Smart substations carry out modeling and communication based on the IEC61850 standard. With the development of related technologies and the increasing domestic requirements for the reliability and safety of smart substations, the communication protocols are also continuously upgraded and improved. The communication protocol of the station control layer in the intelligent station will gradually change from MMS to the localized protocol, and the communication protocol transmitted outside the station will also change from the way of generally adopting the IEC104 protocol to the way of keeping pace with the IEC104 and localized protocols. [0003] The smart substation gateway system (or device) exists as the key link between the...

AI Technical Summary

Problems solved by technology

In the smart substation that has been put into operation, when the communication protocol needs to be replaced due to reasons such as upgrading the communication security of the equipment in the station and improving the communication function outside the station, it is necessary to apply for a long-term power outage maintenance and debugging, which has a huge impact on the reliability of power supply

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