Paper title: PERFORMANCE COMPARISON OF VOLTAGE SAG/SWELL DETECTION METHODS IMPLEMENTED IN CUSTOM POWER DEVICES
Author(s): MEHMET BÜYÜK, MUSTAFA İNCİ, MEHMET TÜMAY,
Abstract: In distribution systems, voltage sag/swell is known as the most hazardous disturbances which distort voltage stability in sensitive
loads. In order to compensate these voltage disturbances via custom power devices, fast and accuracy detection of voltage
sag/swell is the most significant issue for effective compensation. Therefore, this paper aims to examine and compare detection
capabilities of the most common sag/swell detection methods. In this study, EPLL, SOGI-PLL, FFT and ISRF are assessed
among the detection methods. The common point of these methods is that they are applicable for both three-phase system and
single-phase system as well. The performances of proposed methods are analyzed and compared for both single phase sag/swell
condition and three-phase asymmetrical sag/swell conditions. The methods are compared through constructing sag/swell
generation system in PSCAD/EMTDC.
Keywords: Sag/swell detection, Improved synchronous reference frame (SRF), Second order generalized integrator phase
locked loop (SOGI-PLL), Enhanced phase locked loop (EPLL), Fast Fourier transform (FFT) Year: 2017 | Tome: 62 | Issue: 2 | Pp.: 129-133
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