高压直流分压器内部故障对电压测量的影响

Effect of Internal Faults of HVDC Voltage Divider on Voltage Measurement

高压直流分压器是换流站的主设备之一,其准确测量是确保高压直流输电系统正常运行的关键因素。介绍了高压直流分压器内部结构和电压测量原理,通过仿真分析几种常见的内部故障对分压器测量输出值的影响,提出了相应的预控措施。

The HVDC voltage divider is one of the main equipment in convert station.Its accurate measurement is the key factor to ensure the normal operation of HVDC transmission system. In this paper,the internal structure and voltage measurement principle of the HVDC voltage divider are introduced. The effects of several common internal faults on the measuring output value of the voltage divider are analyzed by simulation. Lastly,the corresponding pre-control measures are proposed.