Data storage device applied to high-voltage direct-current power transmission system

Abstract

The invention belongs to the technical field of power systems. The storage device is applied to data of a high-voltage direct-current power transmission system. The system comprises a data collectionunit, a data processing unit and a data storage unit, wherein the data processing unit is in bidirectional connection with the data collection unit and the data storage unit, the data collection unitis used for acquiring operation data in a converter station of the high-voltage direct-current power transmission system and the direct-current power transmission line in real time, and the data processing unit is used for processing and judging the data acquired by the data collection unit. According to the invention, the operation state monitoring task of the high-voltage direct-current transmission converter station can be completed reliably, accurately and efficiently; meanwhile, the operation data can be calculated and processed, the operation state of the high-voltage direct-current power transmission system can be given, and the monitored operation data can be backed up and stored, so that monitoring personnel can know the real-time and historical operation states of the converter station conveniently, and the method has important significance for ensuring safe and stable operation of the high-voltage direct-current power transmission system.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a data storage device applied to high-voltage direct current transmission systems. Background technique [0002] Compared with the AC transmission method, the HVDC transmission technology has changed the way of power transmission, from the traditional three-phase AC transmission system to the positive and negative DC transmission system. The DC transmission system has many technical advantages that the AC system does not have, including better Excellent system stability, low loss and high economic transmission capacity, this technology has great application prospects in long-distance power transmission, new energy grid connection and asynchronous system interconnection, etc., and has been used in major power systems in the world It has been widely used commercially. [0003] The core equipment of the HVDC transmission system is the DC converter station system. The main fun...

AI Technical Summary

Problems solved by technology

[0003] The core equipment of the HVDC transmission system is the DC converter station system. The main function of this system is to realize the AC / DC conversion of electric energy through power electronic components, and provide a flexible and controllable power conversion interface for the interconnection of AC and DC systems; but On the other hand, due to the high-voltage and high-current power electronic components involved in the high-voltage direct current transmission system, the cost of the direct current converter station system is high, which limits the general application of the high-voltage direct current transmission system

Images