Proceedings of the 2015 International Forum on Energy, Environment Science and Materials

Optimization Method of Security Control Strategy for Dynamic Stability in Interconnected Power Grid

Authors
Fuqiang Li, Yuou Hu, Zhonghua He, Yanhong Liang
Corresponding Author
Fuqiang Li
Available Online September 2015.
DOI
10.2991/ifeesm-15.2015.128How to use a DOI?
Keywords
Dynamic stability; security control strategy; damping torque; torque decoupling; electrical distance
Abstract

It may lead to low frequency oscillation in interconnected power grid if part of the lines of power transmission section are disconnected. Reducing the output of generators in sending end urgently is an effective measurement to restrain oscillation, and different control strategy may lead to different effect. The damping of generators’ control system and its electrical distance to the receiving end are the two important factors which impact the effect of generators tripping. The factors above are quantified respectively by damping contribution and voltage phase angle difference of nodes in this paper, and they are weighted to order according to priority of generators tripping. The damping contribution accumulates the effect of damping torque segmentally by decoupling the electromagnetic torque to synchronous torque and damping torque. The actual power grid system of North China is used to verify the correctness of the method. By comparing the existing security control strategy with the result of the proposed method, it shows that the method in this paper can optimize control performance and reduce control cost. Therefore, this method has some practical value.

Copyright
© 2015, 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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Volume Title
Proceedings of the 2015 International Forum on Energy, Environment Science and Materials
Series
Advances in Engineering Research
Publication Date
September 2015
ISBN
978-94-6252-117-9
ISSN
2352-5401
DOI
10.2991/ifeesm-15.2015.128How to use a DOI?
Copyright
© 2015, 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

TY  - CONF
AU  - Fuqiang Li
AU  - Yuou Hu
AU  - Zhonghua He
AU  - Yanhong Liang
PY  - 2015/09
DA  - 2015/09
TI  - Optimization Method of Security Control Strategy for Dynamic Stability in Interconnected Power Grid
BT  - Proceedings of the 2015 International Forum on Energy, Environment Science and Materials
PB  - Atlantis Press
SP  - 682
EP  - 691
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-15.2015.128
DO  - 10.2991/ifeesm-15.2015.128
ID  - Li2015/09
ER  -