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dc.contributor.authorPigazo, Alberto
dc.contributor.authorAzcondo, Francisco J.
dc.contributor.authorBranas, Christian
dc.contributor.authorLamo-Anuarbe, Paula
dc.date2022
dc.date.accessioned2023-02-27T13:15:14Z
dc.date.available2023-02-27T13:15:14Z
dc.identifier.isbn9781665410816
dc.identifier.issn1093-5142
dc.identifier.urihttps://reunir.unir.net/handle/123456789/14248
dc.description.abstractSecond Order Generalized Integrator (SOGI) cells are used for notch filtering due to their simplicity and harmonic rejection capability. SOGI and Dual SOGI (DSOGI) filter cells, combined with Frequency Locked Loops (FLL) to adjust the notch frequency, are commonly used in both single-and three-phase grid following (GFL) power converters for synchronization, i.e. SOGI-FLL and DSOGI-FLL, respectively. The FLL relies on a gradient descent method to minimize a cost function built up around one inner SOGI cell variable, the in-quadrature voltage estimation, and one outer variable, the error signal due to the SOGI filter cell. As a result, the FLL generates relatively large DC offsets and harmonic distortion passing through the outer SOGI cell variable, which deteriorates the frequency estimation and then, the SOGI-FLL performance. To attenuate these issues, the method proposed only uses inner SOGI cell variables. It minimizes the deviation between the estimated grid frequency and the frequency of the signal across the SOGI cell, which is detected through the Teager Energy Operator (TEO). The proposal is validated in simulation and experimentally.es_ES
dc.language.isoenges_ES
dc.publisherProceedings of the IEEE Workshop on Computers in Power Electronics, COMPELes_ES
dc.relation.urihttps://ieeexplore.ieee.org/document/9829953es_ES
dc.rightsopenAccesses_ES
dc.subjectconverteres_ES
dc.subjectPLLes_ES
dc.subjectsecond order generalized integratores_ES
dc.subjectsynchronizationes_ES
dc.subjectthree-phasees_ES
dc.subjectScopus(2)es_ES
dc.subjectWOS(2)es_ES
dc.titleFrequency Estimation in DSOGI cells by means of the Teager Energy Operatores_ES
dc.typeconferenceObjectes_ES
reunir.tag~ARIes_ES
dc.identifier.doihttps://doi.org/10.1109/COMPEL53829.2022.9829953


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