Hybrid Series-connected HVDC System Faults Analysis

被引：1
|
作者：
Chang, Bin [1 ]
Zhou, Jiapei [1 ]
Lin, Chang [1 ]
Liu, Shan [1 ]
Liu, Dong [1 ]
Pang, Hui [2 ]
机构：
[1] Global Energy Interconnect Res Inst, Dept HVDC Technol, HVDC Simulat Ctr, Beijing, Peoples R China
[2] Global Energy Interconnect Res Inst, Dept HVDC Technol, Beijing, Peoples R China
来源：
2019 4TH IEEE WORKSHOP ON THE ELECTRONIC GRID (EGRID) | 2019年
关键词：
hybrid DC transmission; VSC; LCC; Faults analysis; DC energy dissipation;
D O I：
10.1109/egrid48402.2019.9092774
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Multi-infeed cascaded hybrid series-connected DC transmission technology combines the advantages of line commutated converters and voltage sourced converters. Hybrid DC transmission is expected to play an important role in future power transmission systems. It is of great importance to understand the system's behavior under steady and transient states. This paper thoroughly examines the system's responses under different types of faults. The benefits of having such a hybrid system are also highlighted through the fault analysis. In order to cope with the AC system three-phase fault, based on the comparison, a new thyristor based DC energy dissipation device has been proposed. Simulation results show that this device could protect the VSCs from severe faults.
引用
收藏
页码：78 / 83
页数：6
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