Remote setting value modification system of safety automatic device based on file interaction

Abstract

The invention relates to a system for modifying remote fixed values ​​of safety automatic devices based on file interaction, which includes: a main station and multiple safe automatic devices; the background software of the main station calls for setting file requests, and the safe automatic devices receive the file call command For the uploaded file data, the background system modifies the uploaded fixed value file to form a new fixed value file, and then sends a download request to the safety automatic device, and the safety automatic device sends a download permission response to the background system after receiving the request , the background system starts to send the data packet of the setting file. After the sending of the setting file by the background system is completed, the background system sends a request for the validation of the setting file to the safety automatic device. After the verification is successful, modify the setting value of the device, and send a valid success / failure message to the background system. The invention realizes the automation of the writing and reading of the fixed value of the safety automatic device, and improves the intelligence of the power grid operation.

Description

technical field [0001] The invention relates to the technical field of electric power system safety, in particular to a system for modifying remote fixed values ​​of safety automatic devices based on file interaction. Background technique [0002] Safety automatic devices are the key to ensure the safety and stability of the power grid. In order to solve the stability problems in the safe and stable operation of the power grid, the power system has installed a large number of safety automatic devices in the main substations to ensure correct, reliable, intelligent and efficient stability control when the power grid fails. , to ensure the safety of power grid operation. [0003] At present, social life has put forward higher requirements for power reliability and high-quality power services. In the actual operation of the power grid, with the interweaving changes of the power grid structure, generator output level, and power load level, the safety and stability characteristi...

AI Technical Summary

Problems solved by technology

[0005] The use of online technology for real-time modification of the security automatic device strategy setting is currently mainly limited by the following aspects: First, in terms of the source of setting value information, most domestic manufacturers' safety automatic devices can realize the function of remote setting value modification, However, there is no uniform standard for data message specifications of safety automatic devices. Different devices from different manufacturers, or even devices with the same function from the same manufacturer, may have inconsistencies in the definition of data messages due to different software versions; The strategy function of the safety automatic device is related to multiple setting values ​​at the same time, which has overall coordination and real-time performance. Although the existing provincial master station has the function of remote modification of a single setting value, it is difficult to guarantee the setting value of the safety automatic device. The overall coordination among them; thirdly, in terms of operational efficiency, whether it is to modify the fixed value locally or remotely modify the fixed value of a single fixed value, when the substation personnel modify the fixed values ​​of different devices of different manufacturers, they must take into account the differences of different manufacturers. Due to the individuality of the device setting value, it is very easy to make mistakes in the operation, and the wrong setting value modification will cause the safety automatic device to be blocked, and the primary equipment will trip frequently, which greatly endangers the reliability and stability of the power system, and also increases the strategic setting value switching. It is difficult to guarantee the work efficiency, real-time and correctness of the fixed value

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