L-index sensitivity based voltage stability enhancement

Liu, Qitao Liu; You, Minglei; Sun, Hongjian; Matthews, Peter

doi:10.1109/vtcspring.2017.8108627

L-index sensitivity based voltage stability enhancement

Liu, Qitao Liu; You, Minglei; Sun, Hongjian; Matthews, Peter

Authors

Qitao Liu Liu

Minglei You

Professor Hongjian Sun hongjian.sun@durham.ac.uk
Professor

Peter Matthews

Abstract

Voltage stability is a long standing issue in power systems. Due to the requirements of on-line monitoring and high computation efficiency, L-index is used as voltage stability metric in this paper. We propose a novel L-index sensitivity based control algorithm for voltage stability enhancement. The proposed method uses both outputs of wind generators and additional reactive power compensators as control variables. The sensitivities between L-index and control variables are introduced. Based on these sensitivities, the control algorithm can minimise all the control efforts, while satisfying the predetermined L-index value. This paper then verifies the proposed voltage stability enhancement method using real load and wind generation data in the IEEE 14 bus system. The simulation results prove the effectiveness of proposed methodology in enhancement of voltage stability.

Citation

Liu, Q. L., You, M., Sun, H., & Matthews, P. (2017). L-index sensitivity based voltage stability enhancement. In 2017 IEEE 85th Vehicular Technology Conference (VTC2017-Spring) : 4–7 June 2017, Sydney, Australia ; proceedings (1-5). https://doi.org/10.1109/vtcspring.2017.8108627

Conference Name	2017 IEEE 85th Vehicular Technology Conference (VTC2017)
Conference Location	Sydney
Acceptance Date	Mar 5, 2017
Online Publication Date	Nov 16, 2017
Publication Date	Nov 16, 2017
Deposit Date	Mar 20, 2017
Publicly Available Date	Mar 21, 2017
Publisher	Institute of Electrical and Electronics Engineers
Pages	1-5
Book Title	2017 IEEE 85th Vehicular Technology Conference (VTC2017-Spring) : 4–7 June 2017, Sydney, Australia ; proceedings.
ISBN	9781509059331
DOI	https://doi.org/10.1109/vtcspring.2017.8108627

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