多端直流功率协调控制与多端直流运行方式转换的配合分析  

Coordination Analysis of Multi-terminal DC Power Coordinated Control and Multi-terminal DC Operation Mode Conversion

作　　者：侯谭松 瞿少君 贺强 田茂熙 HOU Tansong;QU Shaojun;HE Qiang;TIAN Maoxi(Guiyang Bureau,Extra High Voltage Power Transmission Company,China Southern Power Grid,Guiyang 550081,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司贵阳局,贵州贵阳550081

出　　处：《电工技术》2021年第11期174-176,180,共4页Electric Engineering

摘　　要：为研究多端直流功率协调控制策略在多端直流工程实际应用中的可靠性和稳定性,结合国内某三端直流工程阐述了典型多端直流运行方式的转换逻辑(即极退出逻辑)及二送一模式多端直流功率协调控制策略,通过分析该直流运行方式转换过程中出现的一起功率损失事件验证功率协调策略,并针对其不足提出了改进建议,为今后的三端直流工程设计与运行维护提供参考依据。To study the reliability and stability of the multi-terminal DC power coordinated control strategy in the practical application of multi-terminal DC projects,combined with a domestic three-terminal DC project,the conversion logic of typical multi-terminal DC operation mode(that is,the pole exit logic)and the two-to-one mode multi-terminal DC power coordinated control strategy are introduced.Through the analysis of a power loss event in the conversion process of the DC operation mode,the power coordination strategy is verified,and the improvement suggestions are put forward to provide reference for the design and operation maintenance of the three terminal DC project in the future.

关 键 词：多端直流系统 直流功率协调 直流运行方式转换 功率损失 

分 类 号：TM721.1[电气工程—电力系统及自动化]