Three-phase phase-locked loop algorithms based on sliding modes
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
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This article proposes a family of phase-locked loop schemes based on sliding modes. The use of sliding mode algorithms ensures fast response and global stability. In particular, two new algorithms are presented, both based on a complex framework for representing three-phase signals. This article compares the obtained algorithms with the traditional schemes, and a faster response is obtained when sliding modes are used. Additionally, as an application example, the algorithm is combined with a complex-coefficient filter that allows an easy identification of both positive and negative sequence harmonics. The proposed algorithms are illustrated by numerical simulations and experimentally validated using a digital signal processor.
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CitationDoria-Cerezo, A.; Repecho, V.; Biel, D. Three-phase phase-locked loop algorithms based on sliding modes. "IEEE transactions on power electronics", 1 Gener 2021, vol. 36, núm. 9, p. 10842-10851.
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