EVALUATION OF GENERATION SYSTEM RELIABILITY INDEXES BY FAST TRANSFORMTECHNIQUES

Two computationally efficient Fourier transform methods namely, the mi xed radix Fast Fourier transform algorithm (FFTA) and the Winograd Fou rier transform algorithm (WFTA) for evaluating the reliability of a po wer system are presented in this paper. Both the methods are used to e valuate the reliability of the IEEE reliability test system and they a re compared with the direct discrete Fourier transform method and the basic recursive approach in terms of accuracy and computer time. A sen sitivity analysis has been performed by variation of a few system vari ables to compare the two methods.