F
Francisco A. S. Neves
Researcher at Federal University of Pernambuco
Publications - 108
Citations - 2376
Francisco A. S. Neves is an academic researcher from Federal University of Pernambuco. The author has contributed to research in topics: AC power & Inverter. The author has an hindex of 20, co-authored 106 publications receiving 2128 citations. Previous affiliations of Francisco A. S. Neves include Universidade do Estado de Santa Catarina & Universidade de Pernambuco.
Papers
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Journal ArticleDOI
Modulation Techniques to Eliminate Leakage Currents in Transformerless Three-Phase Photovoltaic Systems
Marcelo C. Cavalcanti,K.C. de Oliveira,Francisco A. S. Neves,Gustavo M. S. Azevedo,F.C. Camboim +4 more
TL;DR: Comparisons among the modulation techniques are discussed, and it is proven that the proposed modulation for two- and three-level inverters presents the best results.
Journal ArticleDOI
Eliminating Leakage Currents in Neutral Point Clamped Inverters for Photovoltaic Systems
TL;DR: The main contribution of this paper is the proposal of new modulation techniques for three-phase transformerless neutral point clamped inverters to eliminate leakage currents in photovoltaic systems without requiring any modification on the multilevel inverter or any additional hardware.
Proceedings ArticleDOI
Discrete-time implementation of second order generalized integrators for grid converters
F.J. Rodriguez,Emilio Bueno,Mauricio Aredes,Luis G. B. Rolim,Francisco A. S. Neves,Marcelo C. Cavalcanti +5 more
TL;DR: An exhaustive study about different methods to implement the SOGIs in the discrete-time is achieved, proposing a common structure for the different SOGI applications, including proposals of C program and presenting a comparative analysis about the execution time using different digital structures.
Journal ArticleDOI
A Generalized Delayed Signal Cancellation Method for Detecting Fundamental-Frequency Positive-Sequence Three-Phase Signals
TL;DR: In this article, the fundamental-frequency positive-sequence grid voltage vector based on a generalization of the delayed signal cancellation method is proposed, which is implemented by sampling and storing the instantaneous αβ voltage vector.
Journal ArticleDOI
Modulation for Three-Phase Transformerless Z-Source Inverter to Reduce Leakage Currents in Photovoltaic Systems
Fabricio Bradaschia,Marcelo C. Cavalcanti,Pedro E. P. Ferraz,Francisco A. S. Neves,Euzeli Cipriano dos Santos,J. H. G. M. da Silva +5 more
TL;DR: A modified Z-source inverter with specific modulation techniques is proposed to reduce leakage currents in three-phase transformerless photovoltaic (PV) systems and results are obtained to validate the theoretical and simulation models.