直流送端孤岛运行过电压研究分析综述  

Research and Analysis of DC Sending End Overvoltage under Island Operation Mode

作　　者：牛宇昆 文俊[1] 王玥 陈甜 

机构地区：[1]华北电力大学电气与电子工程学院,北京

出　　处：《智能电网（汉斯）》2021年第4期313-321,共9页Smart Grid

摘　　要：直流输电的发展与我国能源分布的特点促成了直流孤岛的形成。直流送端孤岛运行时,换流母线上暂时过电压问题表现得更为突出。本文针对直流送端孤岛运行的过电压问题,从直流输电系统侧与孤岛系统侧两方面进行分析。总结了部分可孤岛运行的直流工程,深入研究了孤岛运行、换流母线暂时过电压的分类、直流输电系统送端孤岛运行过电压产生机理及抑制措施并进行了对比,为后续直流送端孤岛运行的研究提供了参考。The development of HVDC and the characteristics of China’s energy distribution contribute to the formation of DC island. When the DC sending end operates in island mode, the Transient Overvoltage on the converter bus is more prominent. In this paper, the over-voltage problem of island operation at DC sending end is analyzed from two aspects of DC transmission system side and island system side. This paper summarizes some DC projects that can operate in island, deeply studies the classification of island operation, converter bus temporary overvoltage, generation mechanism and suppression measures of DC transmission system sending end island operation overvoltage, which provides a reference for the follow-up research of DC transmission system sending end island operation.

关 键 词：直流输电系统 孤岛运行 暂时过电压 过电压抑制措施 无功功率 

分 类 号：TM7[电气工程—电力系统及自动化]