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Comparison of Methods for Determining Inception and Recovery Points of Voltage Variation Events / Alvaro Furlani Bastos; Surya Santoso; Grazia Todeschini

2018 IEEE Power and Energy Society General Meeting (PESGM), Pages: 1 - 5

Swansea University Author: Todeschini, Grazia

Abstract

Voltage sags and swells occur often in power systems; however, determining the duration of these events is not straightforward. Seven methods for estimating the inception and recovery points (and consequently, the duration) of voltage sags and swells are surveyed: threshold rms voltage, waveform env...

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Published in: 2018 IEEE Power and Energy Society General Meeting (PESGM)
ISBN: 978-1-5386-7704-9 978-1-5386-7703-2
ISSN: 1944-9925 1944-9933
Published: Portland, OR, USA IEEE Power and Energy Society General Meeting 2018
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa43511
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Abstract: Voltage sags and swells occur often in power systems; however, determining the duration of these events is not straightforward. Seven methods for estimating the inception and recovery points (and consequently, the duration) of voltage sags and swells are surveyed: threshold rms voltage, waveform envelope, discrete wavelet transform, missing voltage, dq transformation, numerical matrix, and peak detector. Each method has its own strengths and weaknesses; however, no one method works on all conditions. An algorithmic approach to determining inception and recovery points is suggested. Such approach employs one method in combination with other methods based on the event characteristics.
College: College of Engineering
Start Page: 1
End Page: 5