一种用于柔性直流输电的高位取能电源

A High Position Energy Taking Circuit for Flexible DC Transmission

直流高位取能电源应用于柔性直流输电及SVG系统。从直流高压电容取电,为升压阀组的控制、驱动及检测部分供电。该电源是柔性直流输电系统中的关键部件,其可靠性直接关系到输电系统的可靠稳定运行。本文介绍了一种可为柔性直流输电系统内部控制板,驱动板,以及保护装置提供稳定电压的一款高位取能电源。工作电压范围为350V-4000V,同时可在400V的输入电压条件下自启动。

The flexible DC transmission technology is a new generation of DC transmission technology,and the high-level energy extraction power supply is an indispensable key module in the flexible DC transmission system to supply power to other internal modules.Therefore,the normal operation of the high-level energy extraction power supply is one of the prerequisites for the reliable operation of the flexible DC transmission system.Since the high-level energy source takes power from the energy storage capacitor on the converter valve in the flexible Dc transmission system,one of the core requirements of the high-level energy source is that it can accept a wide range of input voltage and can automatically start at the set voltage value.This paper introduces a kind of high position energy extraction power supply which can provide stable voltage for the internal control board,drive board and protection device of the flexible DC transmission system.It is a circuit that can be input in a wide range of 350V-4000V,and can automatically start under the input condition of 400V.