Uncertainty in real-time voltage stability assessment methods based on Thevenin equivalent due to PMU’s accuracy

Angel Perez; Jakob Glarbo Møller; Hjörtur Jóhannsson; Jacob Østergaard

doi:10.1109/isgteurope.2014.7028910

Uncertainty in real-time voltage stability assessment methods based on Thevenin equivalent due to PMU’s accuracy

Angel Perez, Jakob Glarbo Møller, Hjörtur Jóhannsson, Jacob Østergaard

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

This article studies the influence of PMU’s accuracy in voltage stability assessment, considering the specific case of Th ́ evenin equivalent based methods that include wide-area information in its calculations. The objective was achieved by producing a set of synthesized PMU measurements from a time domain simulation and using the Monte Carlo method to reflect the accuracy for the PMUs. This is given by the maximum value for the Total Vector Error defined in the IEEE standard C37.118. Those measurements allowed to estimate the distribution pa- rameters (mean and standard deviation) of the studied voltage stability indices and grid transformation coefficients which have applications in voltage stability assessment. The obtained distri- butions have a direct impact in the number of samples needed for estimating system parameters and compromise between time- scale and uncertainty in those estimations is shown.

Original language	English
Title of host publication	Proceedings of 5th IEEE PES Innovative Smart Grid Technologies
Number of pages	6
Publisher	IEEE
Publication date	2014
DOIs	https://doi.org/10.1109/isgteurope.2014.7028910
Publication status	Published - 2014
Event	IEEE PES ISGT Europe 2014: 5th IEEE PES Innovative Smart Grid Technologies (ISGT) European 2014 Conference - Istanbul Technical University, Istanbul, Turkey Duration: 12 Oct 2014 → 15 Oct 2014

Conference

Conference	IEEE PES ISGT Europe 2014
Location	Istanbul Technical University
Country	Turkey
City	Istanbul
Period	12/10/2014 → 15/10/2014

Keywords

Voltage stability
Long term dynamics
Synchronized phasor measurements
Wide area monitoring
Voltage stability margin
Total vector error

Access to Document

10.1109/isgteurope.2014.7028910

Projects

1 Finished

SOSPO: Secure Operation of Sustainable Power Systems

Østergaard, J., Jóhannsson, H., Nielsen, A. H., Garcia-Valle, R., Yang, G., Lind, M., Blanke, M., Weckesser, J. T. G., Wittrock, M. L., Møller, J. G., Perez, A., Pedersen, A. S. & Zhang, X.

01/01/2012 → 31/03/2016

Project: Research

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Cite this

Perez, A., Møller, J. G., Jóhannsson, H., & Østergaard, J. (2014). Uncertainty in real-time voltage stability assessment methods based on Thevenin equivalent due to PMU’s accuracy. In Proceedings of 5th IEEE PES Innovative Smart Grid Technologies IEEE. https://doi.org/10.1109/isgteurope.2014.7028910

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title = "Uncertainty in real-time voltage stability assessment methods based on Thevenin equivalent due to PMU{\textquoteright}s accuracy",

abstract = "This article studies the influence of PMU{\textquoteright}s accuracy in voltage stability assessment, considering the specific case of Th{\' } evenin equivalent based methods that include wide-area information in its calculations. The objective was achieved by producing a set of synthesized PMU measurements from a time domain simulation and using the Monte Carlo method to reflect the accuracy for the PMUs. This is given by the maximum value for the Total Vector Error defined in the IEEE standard C37.118. Those measurements allowed to estimate the distribution pa- rameters (mean and standard deviation) of the studied voltage stability indices and grid transformation coefficients which have applications in voltage stability assessment. The obtained distri- butions have a direct impact in the number of samples needed for estimating system parameters and compromise between time- scale and uncertainty in those estimations is shown.",

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Uncertainty in real-time voltage stability assessment methods based on Thevenin equivalent due to PMU’s accuracy. / Perez, Angel; Møller, Jakob Glarbo ; Jóhannsson, Hjörtur ; Østergaard, Jacob.

Proceedings of 5th IEEE PES Innovative Smart Grid Technologies. IEEE, 2014.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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