TY - GEN

T1 - Comparative Analysis of Integral-Based Indices for On-line Assessment of Power System Transient Stability

AU - Morales Alvarado, Juan

AU - Ye, Xinlin

AU - Milanovic, Jovica V.

N1 - Funding Information:
This research is partly supported by the EU H2020 project CROSSBOW (grant agreement number: 773430), the EPSRC-India collaborative project JUICE (Grant no: EP/P003605/1), and partly by the Department of Electrical and Electronic Engineering of The University of Manchester.
Publisher Copyright:
© 2021 IEEE.

PY - 2021/10/21

Y1 - 2021/10/21

N2 - This paper assesses the ability of four integral-based indices calculated using the post fault rotor angles, speed deviations, and accelerations to evaluate power system’s transient stability. First, the impact of the integration time for the calculation of each of the indices to provide an adequate assessment of the system stability status is assessed. Then, a more detailed evaluation and calculation of the accuracies achieved by the indices is done by looking into the direct relationship between the index values and the stability status of test simulations. Results show that the proposed indices are able to represent correctly the instability degree of the system to different extents, while at the same time identifying the limitations in their use.

AB - This paper assesses the ability of four integral-based indices calculated using the post fault rotor angles, speed deviations, and accelerations to evaluate power system’s transient stability. First, the impact of the integration time for the calculation of each of the indices to provide an adequate assessment of the system stability status is assessed. Then, a more detailed evaluation and calculation of the accuracies achieved by the indices is done by looking into the direct relationship between the index values and the stability status of test simulations. Results show that the proposed indices are able to represent correctly the instability degree of the system to different extents, while at the same time identifying the limitations in their use.

KW - contingency screening

KW - electrical power system

KW - stability index

KW - transient stability assessment

KW - uncertainties

U2 - 10.1109/ISGTEurope52324.2021.9639940

DO - 10.1109/ISGTEurope52324.2021.9639940

M3 - Conference contribution

SN - 9781665448758

T3 - Proceedings of 2021 IEEE PES Innovative Smart Grid Technologies Europe: Smart Grids: Toward a Carbon-Free Future, ISGT Europe 2021

BT - Proceedings of 2021 IEEE PES Innovative Smart Grid Technologies Europe: Smart Grids: Toward a Carbon-Free Future, ISGT Europe 2021

T2 - 2021 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe

Y2 - 18 October 2021 through 21 October 2021

ER -