Evaluation of quadrature signal generation methods with reduced computational resources for grid synchronization of single-phase power converters through phase-locked loops

Abstract: Low-cost single-phase grid connected converters require synchronization with the grid voltage to obtain a better response and protection under diverse conditions, such as frequency perturbations and distortion. Phase-locked loops (PLLs) have been used in this scenario. This paper describes a set of quadrature signal generators for single-phase PLLs; compares the performances by means of simulation tests considering diverse operation conditions of the electrical grid; proposes strategies to reduce the computational burden, considering fixed-point digital implementations; and provides both descriptive and quantitative comparisons of the required mathematical operations and memory units for implementation of the analyzed single-phase PLLs.

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 Autoría: Lamo P., Pigazo A., Azcondo F.J.,

 Fuente: Electronics, 2020, 9(12), 2026

Editorial: MDPI

 Fecha de publicación: 30/11/2020

Nº de páginas: 22

Tipo de publicación: Artículo de Revista

DOI: 10.3390/electronics9122026

ISSN: 2079-9292

Proyecto español: RTI2018-095138-B-C31