Proceedings of the 2015 2nd International Forum on Electrical Engineering and Automation (IFEEA 2015)

Out-of-step Protection combining Three-impedance Element Model with the Equal Area Criterion

Authors
Liang Yuan, Zhaorong Zhang, Chong Chen
Corresponding Author
Liang Yuan
Available Online January 2016.
DOI
https://doi.org/10.2991/ifeea-15.2016.4How to use a DOI?
Keywords
three-impedance element model, equal area criterion, out-of-step protection, PSCAD simulation
Abstract
This paper proposes a new procedure for out-of-step protection through the combination of a three-impedance element model with equal area criterion. The curve of the system is transferred into curve and then curve is applied to forecast whether the oscillation between the generator and the power system is out-of-step or stable. The forecasting results determine the operation of the out-of-step protection: If the oscillation is unstable, the signals will be sent during the first period of unstable oscillation, and then the number of sliding pole will be counted to achieve a delay action. Otherwise, no response will be made. A three-machine infinite bus system has been used to test the proposed method by simulation with PSCAD software. The simulations test the protection in a variety of faults within the system, including unstable and stable oscillation, loss of excitation and short-circuit faults. Simulation results confirm that this method can work effectively as a backup protection when faults such as loss of excitation and short-circuit fault are not promptly removed. Moreover, the simulations provide a reliable basis for the scheme and design of out-of-step protection in the power plant.
Open Access
This is an open access article distributed under the CC BY-NC license.

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Proceedings
Part of series
Advances in Engineering Research
Publication Date
January 2016
ISBN
978-94-6252-153-7
ISSN
2352-5401
DOI
https://doi.org/10.2991/ifeea-15.2016.4How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Liang Yuan
AU  - Zhaorong Zhang
AU  - Chong Chen
PY  - 2016/01
DA  - 2016/01
TI  - Out-of-step Protection combining Three-impedance Element Model with the Equal Area Criterion
PB  - Atlantis Press
SP  - 18
EP  - 23
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeea-15.2016.4
DO  - https://doi.org/10.2991/ifeea-15.2016.4
ID  - Yuan2016/01
ER  -