A high-voltage DC transmission transient data recording device and control and protection device

Abstract

The invention provides a transient data recording device and a control protection device for high-voltage direct current power transmission, wherein the transient data recording device includes a transient data recording module integrated in the control and protection device, and the transient data recording module Record the internal operation data and external operation data of the control protection device; the internal operation data and the external operation data are stored in the Flash card or SATA hard disk of the control protection device. The transient data recording module of the present invention is a software module. When loaded into the control and protection device, the hardware structure of the original control and protection device will not be changed, no acquisition channel needs to be added or deleted, and it can be combined with the special transient data recording module. It has the characteristics of flexible configuration, comprehensive functions, diverse storage and transmission methods, and convenient use. It can assist engineering debugging personnel to quickly locate the fault location of the protection device, analyze various problems encountered in the joint commissioning of the protection device, and analyze the power grid. provide a reliable basis.

Description

technical field [0001] The invention belongs to the technical field of ultra-high voltage direct current transmission, and in particular relates to a high-voltage direct current transmission transient data recording device and a control and protection device. Background technique [0002] Due to its high voltage, large capacity, and long-distance characteristics, UHV DC transmission has developed rapidly in my country in recent years. The control and protection of DC transmission is a very complicated system. Compared with the secondary control and protection of AC transmission, the most notable feature of DC transmission is that its performance largely depends on its control and protection system, that is, it needs to Quickly adjust the converter valves at both ends to control the magnitude and direction of the power transmitted by the DC line to meet the operating requirements of the entire AC-DC system. Therefore, the debugging of DC transmission control and protection d...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-voltage direct current transmission transient data recording device and a control and protection device, which is used to solve the problem of changing the original hardware structure of the control and protection device in the prior art when the control and protection device is provided with a transient data recorder question

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