Morphological PLL for potential applications on renewable energy

Author(s)

Rocha-Osorio, Carlos M. ^[1] ; Solis-Chaves, Juan S. ^[1] ; Golestan, Saeed ^[2] ; Costa, Fabiano F. ^[3] ; Fernandes, Darlan A. ^[4] ; Guerrero, Josep M. ^[2] ; Sguarezi Filho, Alfeu J. ^[1]

Affiliation

^[1] Fed Univ ABC, Ave Estados 5001, Santo Andre - Brazil

^[2] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg - Denmark

^[3] Univ Fed Bahia, Salvador, BA - Brazil

^[4] Univ Fed Paraiba, Joao Pessoa, Paraiba - Brazil

• Document type: Journal article
• Source: Electric Power Systems Research; v. 156, p. 15-23, MAR 2018.
• Web of Science Citations: 1

Abstract

This paper proposes a new Phase Locked Loop (PLL) structure using a positive sequence component extraction based on Recursive Least Squares, altogether with a morphological filter and a fuzzy-tuned proportional-integral (PI) controller when the power quality conditions are degraded. A high detection accuracy in these conditions is achieved by means of the morphological filtering and the fuzzy-tuned PI controller. The performance of the novel PLL is appraised through a frequency variation, an asymmetrical voltage sag, and an odd harmonic distortion tests, with satisfactory simulated and experimental results which are compared with a Dual Second-Order Generalized Integrator PLL (DSOGI-PLL). (C) 2017 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 17/04623-3 - Predictive control applied to the input converter for photovoltaic systems
• Grantee: Alfeu Joãozinho Sguarezi Filho
• Support Opportunities: Regular Research Grants