Method and device for realizing remote control command transmission in automatic power distribution system

Abstract

The invention discloses a method and a device for realizing remote control command transmission in an automatic power distribution system. The method includes steps of S1, acquiring a first present time of the automatic power distribution system and forming ASDU (application service data unit) carrying a timestamp so as to generate pre-transmission remote control message; S2, receiving a message sent by the master station or substation by a terminal and acquiring a second time of the automatic power distribution system; S3, judging whether the message comprises the ASDU carrying the timestamp or not, if yes, going the S4, if not, stopping at the S3; S4, acquiring the contents of the timestamp in the ASDU so as to restore the first time; and S5, judging whether the difference of the first time and the second time is smaller than a preset interval or not, if yes, the terminal executes the remote control commands, or the terminal refuses to execute the remote control commands. By adding timestamps into the remote control commands and judging whether the remote control commands are time out or not in transmission when the terminal receives the remote control commands, specific operation to time-out remote control command by the terminal is avoided, safety of the power grid is guaranteed and power utilization quality is improved.

Description

technical field [0001] The invention relates to the field of distribution automation systems, in particular to a method and device for realizing remote control command transmission in the distribution automation system. Background technique [0002] In the distribution automation system, the communication between the distribution master station or distribution substation and the distribution terminal generally adopts the IEC101 protocol or the IEC104 protocol. In the distribution automation system, telemetry, remote signaling, and remote control That is, the process of "three remotes" is: the main power distribution station constructs the "three remotes" command according to the requirements of the communication protocol, and sends the command to the power distribution terminal, and the power distribution terminal performs the necessary actions after receiving the command, And the action results are packaged according to the requirements of the communication protocol and sen...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a method and device for realizing remote control command transmission in a power distribution automation system in view of the defect in the prior art that it is impossible to judge whether the remote control command has timed out, so as to prevent the power distribution terminal from performing the remote control command overtime. The specific operation ensures the safety of the power grid and improves the quality of electricity consumption

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