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In this paper, two methods for determining the fundamental frequency and harmonic positive- and negative-sequence components of three-phase signals are investigated. Many aspects of the space-vector discrete Fourier transform and generalized delayed signal cancellation (GDSC) such as response time for different possible implementations, frequency adaptation schemes, stability of recursive implementation,...
A new frequency adaptive method for detecting the Fundamental Frequency Positive Sequence (FFPS) voltage vector is proposed in this paper. The analytical developments demonstrate that the proposed method allows obtaining the FFPS alphabeta voltage vector canceling the effects of fundamental-frequency negative-sequence components, as well as the influences of all harmonic voltage vectors up to 24th...
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