Projects per year

### 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 | |

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

## 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