Control of Hybrid Modular Multilevel Converter based HVDC System under DC Short Circuit Faults

被引：0
|
作者：
Shahu, Vihan [1 ]
Bandaru, Teja [1 ]
Bhattacharya, Tanmoy [1 ]
Chatterjee, Dheeman [1 ]
机构：
[1] Indian Inst Technol, Dept Elect Engn, Kharagpur 721302, W Bengal, India
来源：
IECON 2017 - 43RD ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY | 2017年
关键词：
Hybrid MMC; HVDC transmission; DC short circuit fault; Average capacitor voltage balancing; Negative sequence current injection; MMC; DESIGN;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hybrid modular multi-level converter (Hybrid MMC) topology, consisting of both half-bridge (HB) and full bridge (FB) submodules, is suitable for HVDC application as it combines the advantages of both HB-MMC and FB-MMC. This paper focuses on the control aspects of hybrid MMC with the objective of limiting DC fault current. It is also controlled to exchange reactive power with the AC grid during DC fault. Further, a negative sequence current injection method is proposed to eliminate the mismatch between the average capacitor voltages of the three legs of MMC appearing during DC faults. The proposed methods are tested through simulations in PSCAD/EMTDC platform.
引用
收藏
页码：171 / 176
页数：6
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