Harmonic extraction based on Independent Component Analysis and quadrature matched filters

Harmonic analysis based on scica at PCC of a grid-connected micro solar PV power plant

“…This section presents the results obtained from the method proposed in [18] to separate harmonics applied to the data previously described in Section II.…”

“…The method proposed in [18] for harmonic extraction is based on single channel independent component analysis (SCICA) [19], being an improvement of the method presented in [15]. The improvements are related to the use of matched filters [20] to cluster the outputs of the ICA and a modification on the ICA algorithm envisaging better performance in noisy scenarios.…”

“…This section presents a brief overview of the proposed method. We highly recommend a read of [18] for more detailed information. Figure 5 shows a block diagram of the harmonic extraction method used.…”

“…In [18], an improvement of [15] was proposed that implements the clustering of estimates obtained from ICA automatically by using matched filters, so that, no predefined parameter is needed and no previous knowledge of the signal is necessary.…”

“…978-1-5386-0517-2/18/$31.00 c 2018 IEEE This paper applies the method proposed in [18] in real current and voltage signals obtained at the PCC of a micro Solar PV Power Plant connected at the low voltage grid of Federal University of Juiz de Fora and evaluates the results.…”