Title :
A two-dimensional FFT algorithm for three-phase inverter-fed systems
Author :
De Doncker, Rik W. ; Vandenput, Andri J A
Author_Institution :
General Electric Co., Schenectady, NY, USA
fDate :
1/1/1992 12:00:00 AM
Abstract :
A spectrum analyzer for three-phase inverter-fed balanced systems which is capable of calculating up to 24 harmonic components of the line currents every 130 μs is presented. The method is based on a synchronized sampling technique and on a highly efficient fast Fourier transform (FFT) for three-phase systems. The latter consists of a two-dimensional six-point discrete Fourier transform (DFT) followed by a two-dimensional four-point DFT. The total FFT algorithm has been successfully implemented on a TMS32010 digital signal processor
Keywords :
computerised signal processing; fast Fourier transforms; harmonics; invertors; signal processing equipment; spectral analysers; 2D FFT algorithms; 3-phase invertor-fed systems; 6-point discrete Fourier transform; TMS32010 digital signal processor; fast Fourier transform; harmonics; spectrum analyzer; synchronized sampling technique; Costs; Discrete Fourier transforms; Fast Fourier transforms; Frequency synchronization; Power system harmonics; Pulse width modulation inverters; Sampling methods; Signal processing algorithms; Spectral analysis; Voltage-controlled oscillators;
Journal_Title :
Power Electronics, IEEE Transactions on
