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PMU-voltage drop based fault locator for transmission backup protection

Journal Article (2021)
Author(s)

Jose J. Chavez (National Technological Institute of Mexico Campus)

Nidarshan Veerakumar (TU Delft - Intelligent Electrical Power Grids)

Sadegh Azizi (University of Leeds)

Jose L. Guardado (National Technological Institute of Mexico Campus)

Jose Luis Rueda Torres (TU Delft - Intelligent Electrical Power Grids)

P. Palensky (TU Delft - Intelligent Electrical Power Grids)

V Terzija (Skolkovo Institute of Science and Technology)

M Popov (TU Delft - Intelligent Electrical Power Grids)

Research Group
Intelligent Electrical Power Grids
Copyright
© 2021 Jose J. Chavez, Nidarshan Veerakumar, Sadegh Azizi, Jose L. Guardado, José L. Rueda, P. Palensky, Vladimir Terzija, M. Popov
DOI related publication
https://doi.org/10.1016/j.epsr.2021.107188
More Info
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Publication Year
2021
Language
English
Copyright
© 2021 Jose J. Chavez, Nidarshan Veerakumar, Sadegh Azizi, Jose L. Guardado, José L. Rueda, P. Palensky, Vladimir Terzija, M. Popov
Research Group
Intelligent Electrical Power Grids
Volume number
196
Pages (from-to)
1-8
Reuse Rights

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Abstract

Local protection elements such as fuses and relays are the first protective mechanism to clear the fault and isolate the affected part of the power grid. Although the selectivity, speed, and sensitivity of these primary protection devices are relatively high, they cannot be considered flawless. There is a small percentage of events for which relays experience blinding effects. For these scenarios, a redundant arrangement can be made through backup protection. This paper proposes a centralized remote backup protection method based on two techniques, the delta algorithm and the least-squares technique. The proposed method successfully detects the faulted transmission line, fault type, and the distance to the fault. Besides, it makes use of phasor measurement unit data and it is non-iterative. The grid is split in a user-determined number of subareas based on the phasor mesurement unit locations, in order to accurately determine the fault location. Firstly, the faulty area is located and thereafter an in-depth search is carried out on the faulted area to determine the faulted line. Finally, the fault distance is determined based on the distributed parameter model of the transmission line. The method is demonstrated and validated in an RTDS-Matlab co-simulation platform. Extensive simulation studies are carried out on the IEEE 39-bus system to validate the proposed method.