Research on Key Technical Parameters of 1100kV Live Tank Circuit Breaker for UHVDC Converter Station

2019 4th Asia Conference on Power and Electrical Engineering

能源学;电工学

Du, Ning^1 ; Xiang, Zutao^1 ; Han, Bin^1 ; Yang, Yue^1 ; Xiang, Changyuan^1

State Key Laboratory of Power Grid Safety and Energy Conservation, China Electric Power Research Institute, No. 15, Xiaoying east road, Qinghe, Haidian district, Beijing, China^1

关键词: AC-grid;    Converter station;    In-rush current;    Tank circuits;    Transient recovery voltage;    UHVDC transmission;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/486/1/012007/pdf
DOI  :  10.1088/1757-899X/486/1/012007

来源: IOP

【 摘 要 】

Many of UHVDC transmission projects planned and under construction are hierarchical connected to 500kV and 1000kV AC grid in China. Live tank circuit breakers are selected for switching 1000kV filters. During the development of 1100kV live tank circuit breakers, the closing inrush current and transient recovery voltage are key factors for structure of extinguishing chamber of circuit breakers. In this paper, the above factors are analyzed by simulation, and key technical parameters of 1100kV live tank circuit breakers for UHVDC converter station are proposed.