摘要
在含有网孔的多端直流输电系统或直流电网中,仅靠控制换流站难以实现对特定线路的潮流进行控制,因此需要引入直流潮流控制器来改善潮流分布。首先对现有的4类直流潮流控制器进行了原理介绍和优缺点分析,然后提出了一种新型线间直流潮流控制器。新拓扑具有以下优点:需要的开关器件和驱动更少;拓扑结构更简单;控制更简单。最后,在PLECS中搭建了一个三端直流输电系统,通过仿真验证了新拓扑的有效性。
In a meshed multiterminal high voltage direct current（HVDC）system or a DC grid,it is difficult to control the power flow of a particular line by controlling the converter station.Therefore,it is necessary to use DC power flow controllers to improve the distribution of power flow.Firstly,the four types of existing DC power flow controllers are introduced and their advantages and disadvantages are analyzed.Then,a novel interline DC power flow controller is proposed.The new topology has the following advantages：fewer switching devices and drivers are required,the new topology has a simpler structure,and the control is simpler.Finally,a three-terminal HVDC system is built in PLECS,and the feasibility of the new topology is validated.
作者
张书鑫
李彬彬
毛舒凯
王卫
徐殿国
ZHANG Shuxin;LI Binbin;MAO Shukai;WANG Wei;XU Dianguo(School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)
出处
《电力系统自动化》
EI
CSCD
北大核心
2018年第12期100-105,共6页
Automation of Electric Power Systems
基金
国家自然科学基金资助项目(51237002)
国家自然科学基金重点国际合作研究项目(51720105008)
中国科协青年人才托举工程资助项目~~
关键词
多端直流输电
直流电网
直流潮流控制器
线间直流潮流控制器
multiterminal high voltage direct current （HVDC） transmission
DC grid
DC power flow controller
interline DCpower flow controller
