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2 results on '"Sarlak, Mostafa"'

1. Real-time transient stability assessment using stacked auto-encoders.

Author

Azarbik, Masoud and Sarlak, Mostafa

Subjects
*PHASOR measurement, *NETWORK failures (Telecommunication), *ELECTRIC transients, *AREA measurement, *TELECOMMUNICATION channels, *TELECOMMUNICATION satellites
Abstract

Purpose: This paper aims to report how one can assess the transient stability of a power system by using stacked auto-encoders. Design/methodology/approach: The proposed algorithm works in a power system equipped with the wide area measurement system. To be more exact, it needs pre- and post-disturbance values of frequency sent from phasor measurement units. Findings: The authors have investigated the performance of the proposed method. Going through details, the authors have simulated many contingencies, and then have predicted the transient stability in each of which by using the proposed algorithm. Originality/value: The results demonstrate that the algorithm is fast, and it has acceptable performance under different circumstances including the change of system topology and failures of telecommunication channels. [ABSTRACT FROM AUTHOR]

Published
2020
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2. High-Impedance Faulted Branch Identification Using Magnetic-Field Signature Analysis.

Author

Sarlak, Mostafa and Shahrtash, S. Mohammad

Subjects
*ELECTRIC fault location, *ELECTRIC impedance, *MAGNETIC fields, *FAULT indicators (Electricity), *ELECTRIC power distribution, *FIELD research
Abstract

In this paper, for the first time, a high-impedance fault indicator (HIFI), to be mounted on the poles of distribution feeders, is proposed to detect and track down the location of high-impedance faults (HIFs). The main contribution of this paper is the investigation of employing the magnetic-field strength signal, measured in the vicinity of the conductors of a feeder, to detect HIFs based on a novel pattern recognition method. The proposed HIFIs should be installed so that the faulted branch identification becomes possible and simple (i.e., at the sending ends of branches). Applying the data for HIFs, insulator leakage current and harmonic load from field tests and for other similar phenomena from simulations has shown high security and dependability of the proposed method as a computational model for HIFI. [ABSTRACT FROM AUTHOR]

Published
2013
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