换流站三重化直流控制保护技术浅析

摘要

介绍了换流站直流控制保护三重化配置的基本原理，并结合具体工程对换流站三重化保护的实例进行了阐述，充分体现了直流保护三重化设计上的优越性。针对龙泉－政平、江陵－鹅城直流工程中直流保护出现的问题，提出三重化改造的建议。%Basic principles of the triple configuration of DC protection in converter stations are introduced.The triple protection scheme adopted in converter stations are demonstrated with several engineering examples, and the advantages of such design are clearly shown.Then, a suggestion of renovation with this triple protection technique is provided for the Longquan-Zhengping and Jiangling-Echeng converter stations.