One-Cycle Fourier Finite Position Set PLL

Fernando Lino, Jefferson Assis, Darlan A. Fernandes, Rogerio Jacomini, Fabiano F. Costa and Alfeu J. Sguarezi Filho
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Fernando Lino: Engineering, Modeling and Applied Social Sciences Center, Federal University of ABC, Santo André 09210-180, Brazil
Jefferson Assis: Department of Electrical Engineering, Federal University of Paraíba, João Pessoa 58051-900, Brazil
Darlan A. Fernandes: Department of Electrical Engineering, Federal University of Paraíba, João Pessoa 58051-900, Brazil
Rogerio Jacomini: Instituto Federal de São Paulo, Hortolândia 13183-250, Brazil
Fabiano F. Costa: Polytechnic School, Federal University of Bahia, Salvador 40210-630, Brazil
Alfeu J. Sguarezi Filho: Engineering, Modeling and Applied Social Sciences Center, Federal University of ABC, Santo André 09210-180, Brazil

Energies, 2021, vol. 14, issue 7, 1-17

Abstract: This work introduces a new method for computing the angular position of the voltage of the grid—based on a finite set of angles—in the condition of failures in the distribution systems, as symmetrical and asymmetric voltage sags, unbalance, harmonic distortions, and frequency changes. This method is inspired in the model predictive control finite control set principles. In this way, the proposal employs the One-Cycle Fourier filter (OCF) to estimate the positive sequence of the voltage vector into the stationary α β -frame. The positive sequence voltages extracted from this filter is then handled by an algorithm that is implemented by a finite position set (FPS) for estimating the phase angle. In this way, the minimized cost function chooses the optimal angular position while using the predicted behavior of the grid voltage vector elements in d q frame. The structure, called One-Cycle Fourier Finite position Set Phase Locked Loop (OCF-FS-PLL), here is a composition of the OCF and the FPS. The results that were obtained in an experimental test bench validate the proposed method.

Keywords: PLL; Model Predictive control; One-Cycle Fourier filter; Finite Set Position; distorted voltage; harmonics components (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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