Title :
Simulation on time delay estimation of EM waves emitted from PD using constrained interpolation profile (CIP) method and cross-correlation method based on in-place fast Haar wavelet transform
Author :
Kawada, Masatake
Author_Institution :
Inst. of Technol. & Sci., Univ. of Tokushima, Tokushima, Japan
fDate :
May 31 2009-June 3 2009
Abstract :
Measurement of partial discharge (PD) has been used to assess the condition of insulation material used in electric power equipment. Analysis of the electromagnetic (EM) waves emitted from PD is useful from the viewpoint of noncontact diagnosis because PD emits wideband EM waves. The EM waves emitted from PD is numerically visualized using the constrained interpolation profile (CIP) method and the time delay between the EM waves measured at different positions is estimated using the cross-correlation (CC) method based on the in-place fast Haar wavelet transform (IP-FHWT).
Keywords :
Haar transforms; electromagnetic waves; interpolation; partial discharges; wavelet transforms; EM waves; constrained interpolation profile; cross-correlation method; electric power equipment; electromagnetic waves; inplace fast Haar wavelet transform; noncontact diagnosis; partial discharge; time delay estimation; Delay effects; Delay estimation; Dielectrics and electrical insulation; Electric variables measurement; Electromagnetic measurements; Interpolation; Partial discharge measurement; Partial discharges; Power measurement; Wavelet transforms;
Conference_Titel :
Electrical Insulation Conference, 2009. EIC 2009. IEEE
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4244-3915-7
Electronic_ISBN :
978-1-4244-3917-1
DOI :
10.1109/EIC.2009.5166322
