直流电网联网设备与控制策略研究综述  

Review on Equipment and Control Strategies of DC Power Grid

作　　者：王渝红[1] 阳莉汶 江伟 刘程卓 王媛 

机构地区：[1]四川大学电气信息学院,四川省成都市610065 [2]国网福建省电力有限公司电力科学研究院,福建省福州市350007

出　　处：《电网技术》2018年第1期12-24,共13页Power System Technology

基　　金：国家电网公司科技项目(52130415000M)~~

摘　　要：直流电网的控制策略是保证其稳定运行的关键,而联网设备是实现其控制策略的主体。相对于多端直流系统,直流电网拓扑结构和电力电子设备的复杂度提高,这对其控制策略提出了新的要求。首先归纳了直流电网的定义并给出典型拓扑,分析了直流电网各联网设备的功能,并总结了直流电网的技术特点,由此提出对其控制策略的要求。然后结合直流电网联网设备的特性,分别总结了直流电网基本控制策略、潮流优化控制策略和故障控制策略等关键问题的国内外研究进展。最后在此基础上提出了直流电网控制策略方面亟待研究的一些问题,为未来的研究工作提供参考。Control strategies of DC grids are the key factors to its stable operation, and networking devices are the mainstay in implementing its control strategy. Topologies and electronic devices of DC grids are much more complex than those in multi-terminal DC transmission systems and demand improved control strategies. Firstly, definition of DC power grid and typical topologies were presented and the functions of DC grid devices were analyzed. Then, the paper summarized technical characteristics of DC grids and requirements of its control strategies. Considering the characteristics of DC grid devices, a summary of basic control strategies, power control methods and DC fault protection strategies were presented. Finally, some issues to be solved urgently were put forward, providing reference for further research.

关 键 词：直流电网 控制策略 潮流控制 直流潮流控制器 直流电网故障 直流断路器 

分 类 号：TM721[电气工程—电力系统及自动化]