天广直流输电系统直流电压互感器缺陷分析及改进

针对天广直流输电系统出现的电压异常波动现象,结合直流电压互感器的设计对问题原因进行了分析,直流电压互感器二次分压的设计缺陷是引起系统电压异常波动的主要原因,提出了相应的改进措施,实际运行表明改进措施有效地解决了天广直流输电系统直流电压互感器的设计缺陷,解决了系统直流电压异常波动问题,对直流电压互感器的设计和选型有一定的参考价值。

DC Voltage Transformer Defect Analysis and Improvement of Tian Guang DC Transmission System

In allusion to the voltage abnormal fluctuation phenomenon taking place in Tian Guang DC transmission system, this paper combined with DC voltage transformer design to analyze the problem causes. The design defect of DC voltage transformer second divider is the main cause of system voltage abnormal fluctuation. The corresponding improved measures were raised. The actual operation shows that the improved measures effectively remove DC voltage transformer design defect of Tian Guang DC transmission system, solving the system DC voltage abnormal fluctuation with certain reference value for DC voltage transformer design and model selection.