Protocol and implementation method of direct transmission of electrical power system warning message

Abstract

The invention relates to a protocol and an implementation method of direct transmission of an electrical power system warning message. Authorization mechanisms are only arranged among three types of messages, a master station and subsites and are used for transmitting a plurality of data and also used for transmitting a plurality of texts. An extensive makeup language (XML) format is adopted in a transmitting entity, and the protocol and the implementation method of the direct transmission of the electrical power system warning message has the advantages of being simple, safe, universal, and easy to analyze and process. When the direct transmission of the electrical power system warning message is implemented, the subsites are used as client-sides and used for collecting data/information, assembling and transmitting the messages according to formats, constructing connection with the master station, transmitting the messages of logging in/data/logging out, and closing the connection with the master station, the master station is used as a server-side and used for monitoring and receiving the connection of each subsite, returning authentication results of the subsites, and saving or displaying data transmitted from the subsites. According to the implementation method of the direct transmission of the electrical power system warning message, the subsites are connected with the master station only when information transmission is needed, and the master station dose not need to construct periodic lines with every subsites, so that server resources and periodic line resources are saved.

Description

technical field [0001] The invention relates to a protocol and an implementation method for direct transmission of electric system alarm information, and belongs to the technical field of power grid dispatching automation. Background technique [0002] In the field of power grid dispatching automation technology, the dispatching organization is generally called the main station, and the power plant and substation are called sub-stations. The main station and sub-stations use communication protocols to exchange data and information through transmission channels. [0003] In order to meet the requirements of "control integration", the State Grid Corporation issued the "Substation Control Data Interaction Specification", which clarified the basic technology of "alarm direct transmission, remote browsing, data optimization, authentication security" for the exchange of data and information between the main and sub-stations In principle, it is required to optimize the processing o...

AI Technical Summary

Problems solved by technology

Judging from the current implementation situation of various manufacturers, the self-describing function of the transmitted text information is not strong, and it is not convenient for the master station program to analyze

In addition, when the manufacturer implements the function of DL476 to transmit alarm information, the main station is used as the client and the sub-station is used as the server. The station needs to constantly "inquire" whether the sub-station has information to transmit, and then go to the sub-station to get it after being notified by the main station that there is information to be transmitted. Under normal circumstances, the sub-station has no information to transmit to the main station. Therefore, In this way, the master station will do a lot of "useless work"

2. When there are multiple sub-station information to be accessed, the main station needs to establish a one-to-one corresponding link with the sub-stations, and run one-to-one corresponding processes or threads, which not only occupies link resources, but also increases the consumption of server resources

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