Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/34555
Title: Simple, fast detector for voltage dip or voltage swell
Authors: Tsang, KM 
Chan, WL 
Issue Date: 2007
Publisher: IEEE
Source: Electronics letters, 2007, v. 43, no. 4, p. 245-247 How to cite?
Journal: Electronics letters
Abstract: A simple, fast detection scheme for voltage dip and voltage swell is presented. Applying a simple relay and lowpass filter to the supply voltage signal, an in-phase fixed magnitude reference signal with very low total harmonic distortion can be generated. Comparing the supply signal with the in-phased fixed magnitude reference sinusoid, any change of magnitude in the supply signal can be detected. The detection scheme can indicate voltage dip and voltage swell in less than a quarter of the cycle of oscillation. Experimental results are presented to demonstrate the effectiveness of the proposed detection scheme.
URI: http://hdl.handle.net/10397/34555
ISSN: 0013-5194 (print)
1350-911X (online)
DOI: 10.1049/el:20073137
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