A novel protection scheme for HVDC transmission line

作者：Zheng, XiaoDong^*; Tai, NengLing; Yang, GuangLiang; Ding, HaoYin; Sun, ShuJie; Bo, ZhiQian; Li, NaiHu

来源：2011 International Conference on Advanced Power System Automation and Protection, APAP 2011, China,Beijing, 2011-10-16 to 2011-10-20.

DOI：10.1109/APAP.2011.6180423

• Capacitive currents
• Differential protection
• HVDC
• HVDC transmission lines
• Protection schemes
• Reliability and sensitivity
• Transient capacitive currents
• Transmission line protection

The formation of the transient capacitive current and its effects on the HVDC transmission line differential protection is analyzed based on the wave propagation principle in this paper. The magnitude of capacitive current in the transient process of DC line fault is directly proportional to the time difference of fault signal travelling to both terminals of the line. Based on that, a novel HVDC differential protection scheme considering transient capacitive current compensation is proposed. Reliability and sensitivity of DC differential protection is effectively improved by reasonable compensation of the time difference. Large numbers of simulation results have proved that the proposed protection scheme is suitable for HVDC transmission line.

• 出版日期2011
• 单位上海交通大学