Single Pole Ground Fault Protection Strategy for MMC-MTDC Based on Voltage Margin Control

DOI

10.2991/iceea-18.2018.10How to use a DOI?

Keywords

topological structure; mathematical model of MMC; multi-point DC voltage control strategy; DC single pole ground fault; implement protection strategy

Abstract

Modular multi-level converter has become one of the most prospective converter technologies in HVDC transmission. According to the topological structure and mathematical model of MMC, this paper proposes a multi-point DC voltage control strategy based on voltage margin control, and designs the corresponding controller. On this basis, the influence of DC single pole ground fault on the system is analyzed, and the relevant protection strategy is proposed. Finally, the PSCAD/EMTDC is utilized to simulate the single pole ground fault and implement protection strategy. The simulation results indicate that the system can quickly recover after system fault and improve the system stability, the effectiveness of fault protection is proved.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Mingguang Zhang
AU  - Jiawen Li
PY  - 2018/03
DA  - 2018/03
TI  - Single Pole Ground Fault Protection Strategy for MMC-MTDC Based on Voltage Margin Control
BT  - Proceedings of the 2018 2nd International Conference on Electrical Engineering and Automation (ICEEA 2018)
PB  - Atlantis Press
SP  - 42
EP  - 47
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceea-18.2018.10
DO  - 10.2991/iceea-18.2018.10
ID  - Zhang2018/03
ER  -