Proceedings of the 2018 International Conference on Mathematics, Modeling, Simulation and Statistics Application (MMSSA 2018)

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Research on Two-shot Reclosing Technology of UHV AC/DC Interconnected Power Grid Based on Off Line Simulation

Authors
Yimin Liu, Juan Du, Fei Cao, Liming Su, Rui Yu, Ning Wang
Corresponding Author
Yimin Liu
Available Online January 2019.
DOI
10.2991/mmssa-18.2019.46How to use a DOI?
Keywords
the two-shot reclosing; extra-high voltage; AC/DC interconnected power grid; DC system blocked; off line simulation
Abstract

In AC/DC interconnected power system, when the important AC transmission lines have faults and power supply is broken, the safe and stable operation of power grid will be seriously threatened. At present, one-shot auto-reclose is widely used in high voltage transmission lines. In order to enhance the reliability of power supply, this paper presents a design idea of the two-shot auto-reclose for AC/DC hybrid power grid, and introduces a specific implementation method of adding the secondary reclose logic to circuit breaker relay. The PSCAD program is used to simulate and analyze a practical power grid. The results show that AC system had faults lead to multiple trip and reclose, and system disturbances produce multiple shocks. When the time interval of tripping and closing is set reasonably, although DC voltage drops twice or more continuously, it will not lead to DC pole blockade. Therefore, the reliability of power supply can be improved by adding the secondary reclose logic, and it will not do great harm to the DC power system of AC/DC interconnected power grid.

Copyright
© 2019, 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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<Previous Article In Volume
Volume Title
Proceedings of the 2018 International Conference on Mathematics, Modeling, Simulation and Statistics Application (MMSSA 2018)
Series
Advances in Intelligent Systems Research
Publication Date
January 2019
ISBN
978-94-6252-661-7
ISSN
1951-6851
DOI
10.2991/mmssa-18.2019.46How to use a DOI?
Copyright
© 2019, 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/).

Cite this article

risenwbib
TY  - CONF
AU  - Yimin Liu
AU  - Juan Du
AU  - Fei Cao
AU  - Liming Su
AU  - Rui Yu
AU  - Ning Wang
PY  - 2019/01
DA  - 2019/01
TI  - Research on Two-shot Reclosing Technology of UHV AC/DC Interconnected Power Grid Based on Off Line Simulation
BT  - Proceedings of the 2018 International Conference on Mathematics, Modeling, Simulation and Statistics Application (MMSSA 2018)
PB  - Atlantis Press
SP  - 191
EP  - 193
SN  - 1951-6851
UR  - https://doi.org/10.2991/mmssa-18.2019.46
DO  - 10.2991/mmssa-18.2019.46
ID  - Liu2019/01
ER  -