Wave record contrastive analysis method of direct current control protection system simulation experiment

Abstract

The present invention provides a method for contrasting and analyzing the recorded wave of the simulation test of the direct current controlling and protecting system. The method comprises the following procedures: 1) executing standardized processing to the inner recorded wave data of the direct current controlling and protecting device (2) to lead to the compatible format, consistent coordinate, consistent unit and corresponding wave recording time of the recorded wave data of the real-time digital simulator (1); and 2) comparing the inner recorded wave data which is standardized-processed by the direct current controlling and protecting device (2) to the recorded wave data of the real-time digital simulator (1) to each other in order to analyze and check the correctness of the action of the direct current controlling and protecting device (2). The inner recorded wave data of the direct current controlling and protecting device (2) comprises a direct current amount and a direct current voltage amount. The invention executes a series of standardized processing to the direct current voltage amount of the direct current protecting device and the inner recorded wave data of the direct current amount, to lead to the compatible format, consistent coordinate, consistent unit and corresponding recorded wave time of the corresponding real-time digital simulation recorded wave thereby comparing with each other to evaluate the accuracy and reliability of the simulation of the straight current system and checking the correctness of the action of the direct-current protecting device and the like.

Description

Technical field: [0001] The present invention is a method for comparing and analyzing waves recorded in a simulation test of a DC control and protection system, in particular to a method for processing wave recording data of a fault in a high-voltage DC protection device and comparing and analyzing it with real-time digital simulation data, which belongs to the simulation of a DC control and protection system The innovative technology of the wave recording comparative analysis method of the experiment. Background technique: [0002] The DC control and protection device is the core of the HVDC transmission system, and its performance directly determines the operation of the DC project and the safety of the DC equipment. Among them, the DC protection is used to protect the DC equipment of the converter station, and quickly remove the short-circuit fault or abnormal operating equipment in the system under fault or abnormal conditions, so as to prevent it from causing damage or ...

AI Technical Summary

Problems solved by technology

However, it is very difficult to compare the internal wave recording of the DC protection device with the real-time digital simulation wave recording, because: 1) the data formats of the two are different

2) The coordinates of the two are different. The abscissa of the internal wave recording of the DC protection device is ms (milliseconds), and the ordinate is a percentage value, and the reference value used for the calculation of the percentage value is not a conventional quantity

3) The recording time of the two is different

[0005] Therefore, so far, no research institutions at home and abroad have compared the internal wave recording of high-voltage DC protection devices with real-time digital simulation wave recording.

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