Short circuit fault judgment method and device for same-tower double-circuit direct current transmission line and computer equipment

• Main Authors: ZHANG RUI, LIU BAISHUANG, YANG MAO, LING ZEQIANG, LI LIN, NONG GAOZHAO, DAI SHULONG, ZHENG SENWEN, XIN LIANG, ZHOU YASHU, XU XUEHAI, TENG ZHAOLIN
• Format: Patent
• Language: Chinese; English
• Published: 18.04.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention relates to a short-circuit fault judgment method and device for a same-tower double-circuit direct-current transmission line and computer equipment. The method comprises the steps that if it is detected that at least two fault lines exist in the same-tower double-circuit direct-current transmission lines, candidate short-circuit lines in the at least two fault lines are determined according to rectification station end currents, inverter station end currents and line grounding currents of all the fault lines; and determining a target short-circuit line in the candidate short-circuit lines according to the rectifier station end current, the inverter station end current and the loop grounding current of the candidate short-circuit lines. By adopting the method, the efficiency and accuracy of target short-circuit line judgment can be improved, and the consumption of manpower and material resources can be greatly reduced. 本申请涉及一种同塔双回直流输电线路的短接故障判断方法、装置和计算机设备。方法包括：若检测到同塔双回直流输电线路中存在至少两条故障线路，则根据各条故障线路的整