[1]张清枝,李志辉.具备直流故障隔离能力的新型MMC拓扑研究[J].郑州大学学报(工学版),2017,38(06):74-78.[doi:10.13705/j.issn.1671-6833.2017.06.011]
　Zhang Qingzhi,Li Zhihui.Reaseach on the Topology of MMC With DC Fault Isolating Capability[J].Journal of Zhengzhou University (Engineering Science),2017,38(06):74-78.[doi:10.13705/j.issn.1671-6833.2017.06.011]
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具备直流故障隔离能力的新型MMC拓扑研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
38
期数:
2017年06期
页码:
74-78
栏目:
出版日期:
2017-11-20

文章信息/Info

Title:
Reaseach on the Topology of MMC With DC Fault Isolating Capability
作者:
张清枝; 李志辉
1.新乡学院机电工程学院,河南新乡,453003;2.郑州大学电气工程学院,河南郑州,450001
Author(s):
Zhang Qingzhi1; Li Zhihui2
1. School of Mechanical and Electrical Engineering, Xinxiang University, Xinxiang, Henan, 453003; 2. School of Electrical Engineering, Zhengzhou University, Zhengzhou, Henan, 450001
关键词:
柔性直流输电; 直流故障; MMC; 子模块拓扑; 子模块电容电压
Keywords:
DOI:
10.13705/j.issn.1671-6833.2017.06.011
文献标志码:
A
摘要:
对柔性直流输电的直流侧短路故障问题，提出了一种新型的能够自我阻断直流故障的子模块拓扑，该拓扑可以通过自身结构特性来阻断故障电流；在此基础上，为了抑制故障时子模块电容电压升高带来的不利影响，提出了具有阻尼电阻的自阻性拓扑，该拓扑在阻断故障电流的同时还具有抑制子模块电容电压的作用。在PSCAD/EMTDC平台下搭建了9电平MMC-HVDC仿真模型，并验证了所提出新型拓扑的正确性。
Abstract:
To solve the MMC-HVDC dc-fault, a new sub-module topology with DC faults blocking capability is proposed, which could be used to block the fault current by its structure characteristic. On this basis, in order to restrain the adverse effects of sub-module capacitor voltage rising during the fault time, a new self-break sub-module topology with a damping resistor is proposed. The topology not only can block fault current, but also has sub-module capacitor voltage suppression effect. An 9 level SBMMC-HVDC simulation model is built in PSCAD / EMTDC platform, and the simulation proves the proposed new topology is correct.
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