Title :
Practical implementation issues in detecting voltage dips
Author :
Moschitta, A. ; Fravolini, M.L. ; Carbone, P. ; Tissi, F.
Author_Institution :
Dept. of Electron. & Inf. Eng., Univ. of Perugia, Perugia, Italy
Abstract :
In this paper, the effect of signal conditioning on the performance of voltage dip detection is considered. In particular, root mean square based and a computationally light version of a Generalized Likelihood Ratio Test based voltage dip detector are compared. The effects of the conditioning on the detectors´ performance are analyzed, taking into account both frequency selectivity and error gains in the conditioning block. The usage of resistive-capacitive dividers and transformers to interfacing a single phase power signal to an acquisition system has been analyzed, using a Laplace domain based analysis.
Keywords :
Laplace transforms; data acquisition; least mean squares methods; power supply quality; power transformers; signal conditioning circuits; voltage dividers; Laplace domain based analysis; acquisition system; error gain; frequency selectivity; generalized likelihood ratio test; power signal interface; resistive-capacitive divider; root mean square method; signal conditioning; transformer; voltage dip detection; Data acquisition; Detectors; Gain; Signal processing algorithms; Signal to noise ratio; Transfer functions; Voltage fluctuations; Conditioning; Detection; Power Quality; Voltage Dips;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International
Conference_Location :
Graz
Print_ISBN :
978-1-4577-1773-4
DOI :
10.1109/I2MTC.2012.6229709
