TY - GEN
T1 - Identification of instantaneous attributes of torsional shaft signals using the Hilbert transform
AU - Andrade, Manuel
AU - Messina, A. R.
AU - Rivera, Carlos A.
AU - Olguin, Daniel
PY - 2004
Y1 - 2004
N2 - A systematic analytical procedure based on the concept of the analytic signal (AS) of Gabor is used to determine the time-varying attributes of torsional oscillations, namely the instantaneous amplitude and the instantaneous frequency. Methods for implementing the AS using the numeric Hilbert transform are given and criteria for characterizing nonlinear effects are discussed. The proposed methodology is demonstrated on the IEEE First Benchmark Model (FBM) for subsynchronous resonance studies. The AS analysis is performed on output data files generated by nonlinear simulations using the EMTP, but the method is general and is applicable to any nonlinear, non-stationary signal. Numerical results include the determination of the instantaneous frequency of torsional oscillation signals following large perturbations. Comparison of numerical results obtained by the proposed method with linear analysis techniques is provided.
AB - A systematic analytical procedure based on the concept of the analytic signal (AS) of Gabor is used to determine the time-varying attributes of torsional oscillations, namely the instantaneous amplitude and the instantaneous frequency. Methods for implementing the AS using the numeric Hilbert transform are given and criteria for characterizing nonlinear effects are discussed. The proposed methodology is demonstrated on the IEEE First Benchmark Model (FBM) for subsynchronous resonance studies. The AS analysis is performed on output data files generated by nonlinear simulations using the EMTP, but the method is general and is applicable to any nonlinear, non-stationary signal. Numerical results include the determination of the instantaneous frequency of torsional oscillation signals following large perturbations. Comparison of numerical results obtained by the proposed method with linear analysis techniques is provided.
UR - http://www.scopus.com/inward/record.url?scp=13344285981&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:13344285981
SN - 0780384652
SN - 9780780384651
T3 - 2004 IEEE Power Engineering Society General Meeting
SP - 1474
BT - 2004 IEEE Power Engineering Society General Meeting
T2 - 2004 IEEE Power Engineering Society General Meeting
Y2 - 6 June 2004 through 10 June 2004
ER -