Author :
Testa, A. ; Akram, M.F. ; Burch, R. ; Carpinelli, G. ; Chang, G. ; Dinavahi, V. ; Hatziadoniu, C. ; Grady, W.M. ; Gunther, E. ; Halpin, M. ; Lehn, P. ; Liu, Y. ; Langella, R. ; Lowenstein, M. ; Medina, A. ; Ortmeyer, T. ; Ranade, S. ; Ribeiro, P. ; Watson
Abstract :
Some of the most remarkable issues related to interharmonic theory and modeling are presented. Starting from the basic definitions and concepts, attention is first devoted to interharmonic sources. Then, the interharmonic assessment is considered with particular attention to the problem of the frequency resolution and of the computational burden associated with the analysis of periodic steady-state waveforms. Finally, modeling of different kinds of interharmonic sources and the extension of the classical models developed for power system harmonic analysis to include interharmonics are discussed. Numerical results for the issues presented are given with references to case studies constituted by popular schemes of adjustable speed drives.
Keywords :
discrete Fourier transforms; power system harmonics; adjustable speed drives; frequency resolution; interharmonic sources modelling; interharmonic theory; periodic steady-state waveforms; power system harmonic analysis; Distortion measurement; Frequency; Harmonic analysis; Power harmonic filters; Power system analysis computing; Power system harmonics; Power system modeling; Steady-state; Variable speed drives; Voltage fluctuations; Discrete Fourier transform (DFT); frequency resolution; harmonic analysis; interharmonics;
