摘要
控制系统是VSC-HVDC系统的核心之一。目前虽已有许多研究者在该领域做了大量的工作,但多数成果集中在VSC-HVDC控制器的设计和控制方法的研究上,对整个VSC-HVDC系统控制体系框架的研究并不多见。本文在介绍VSC-HVDC系统结构的基础上,阐述了VSC-HVDC控制系统的基本功能,指出采用多重化配置和分层控制结构设计的必要性,具体提出建立四层结构的VSC-HVDC系统控制体系框架的观点,即直流系统控制层、换流器控制层、阀组控制层和独立控制层。文章在讲述各层配置原则的基础上,详细阐述了每个控制层次的控制功能和范围以及各层次之间的相互关系,并进一步介绍了控制系统和保护功能的协调配合问题,为VSC-HVDC控制系统的开发奠定了基础。
As one of the core technologies in VSC-HVDC system, the control system of VSC-HVDC is paid more attention. Researchers are mainly focus on the design of controllers and the control methods of VSC-HVDC but the research of the control system framework of VSC-HVDC system is nearly neglected. This paper firstly introduces the structure of VSC-HVDC system. Then it clarifies the basic control functions of the control system of VSC-HVDC and points out that the redundancy configuration and the multi-layer structural design are necessary. A four-layer structure ot the control system framework of VSC-HVDC is proposed concretely, which is made up with the DC system control layer, converters control layer, separate control layer and valves control layer. Based on the principles of configuration of each layer, the paper describes the control functions and scope of each control layer at details. In view of the close correlation between the control system and the protection of VSC-HVDC system, the paper further discusses the coordination issues between them.
出处
《电工技术学报》
EI
CSCD
北大核心
2009年第5期141-147,共7页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(50577018)
高等学校学科创新引智计划(B08013)资助项目
