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Published Article / ENY-ARTICLE-2009-269

Detection of Short Transients and Interruptions using the Hilbert Transform

Caciotta, M (Roma Tre University, Rome, Italy) ; Giarnetti, S (Roma Tre University, Rome, Italy) ; Leccese, F (Roma Tre University, Rome, Italy) ; Leonowicz, Z (Wroclaw University of Technology, Poland)


Abstract: In electrical energy power networks, disturbances can cause problems in electronic devices so their monitoring is fundamental in Power Quality. In this paper we address the problem of disturbances estimation by using the Hilbert Transform (HT). It is employed as an effective technique for tracking the voltage waveforms in electrical distribution systems. The mathematical simplicity of the proposed technique, compared with the commonly used algorithms from the literature, renders them competitive candidate for the on-line tracking of disturbances. The accurate tracking of the HT facilitates its implementation for the control of disturbances mitigation devices. Simulation results are provided to verify the tracking capabilities of the algorithm and this has been tested under different conditions: voltage dip with phase jump, noise and frequency changes shows that the Hilbert Transform can be used as a valid methodology for this type of phenomena.

Keyword(s): power quality ; Hilbert Transform ; voltage dips ; micro interruptions ; transients
Note: XIX IMEKO World Congress of Fundamental and Applied Metrology September 6−11, 2009, Lisbon, Portugal.

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Record created 2009-10-27, last modified 2009-10-27

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