DC Transmission Control and Protection System

Publication Date:2015-01-29

Overview

        XJ Group mainly makes DPS-3000 system of the latest generation as the main device as a systematic solution for DC transmission control and protection. DPS-3000 DC transmission control and protection system is applicable to the control and protection of the converter station of high voltage DC transmission project with a voltage class no more than +1100 and also can be applied to the control and protection system of back-to-back network project, conventional DC project, ultra high voltage DC project, multi-terminal DC transmission project and the flexible DC transmission project.

        DPS-3000 control and protection system adopts hierarchical structure,including three layers,i.e., the layer of operating personnel control system,the layer of control and protection device and the scene layer. They consist of the following core device,respectively.

●      Operating personnel control layer

        It mainly consists of DS3000 control system of operating personnel, GWS-1 telecontrol device and network communication equipment.

●      Layer of control and protection device

        It mainly consists of HCM3000 software and hardware platform.

●     Scene layer

        It mainly consists of DFU410 measurement and control device.

Advantages

        The function and performance of the DPS - 3000 DC control and protection system have reached the international advanced level. Platform operating speed, ignition interface control technology, the technology of fully digital generation of simulation functional module has reached the international leading level.

        The DPS-3000 uses the hierarchical and distributed structure. It can flexibly constitute the control and protection system of back-to-back network project, extra high voltage long-distance DC transmission project, each more than  series of ultra high voltage DC project with 12 pulse valve groups concatenating on each pole, multi-terminal DC transmission project,and the flexible DC transmission project.

        The DPS-3000 can interface with the converter valves of LTT technology and ETT technology,support two kinds of ignition pulse technology of parallel triggering and coded serial triggering, and has two kinds of arc angle quenching control technology of the measured type and the predicted type.