@Article{HollwegTMBMKOM:2023:MoReAd,
author = "Hollweg, Guilherme Vieira and Tambara, Rodrigo Varella and
Massing, Jorge Rodrigo and Borin, Lucas Cielo and Mattos, Everson
and Koch, Gustavo Guilherme and Os{\'o}rio, Caio Ruviaro Dantas
and Montagner, Vin{\'{\i}}cius Foletto",
affiliation = "{University of Michigan} and {Universidade Federal de Santa Maria
(UFSM)} and {Universidade Federal de Santa Maria (UFSM)} and
{Universidade Federal de Santa Maria (UFSM)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade Federal
de Santa Maria (UFSM)} and {Universidade Federal de Santa Maria
(UFSM)} and {Universidade Federal de Santa Maria (UFSM)}",
title = "Model reference adaptive controllers with improved performance for
applications in LCL-filtered grid-connected converters",
journal = "Control Engineering Practice",
year = "2023",
volume = "138",
pages = "105591",
keywords = "Model reference adaptive control, Robust state feedback,
Metaheuristics, Grid-connected converters.",
abstract = "This work presents a control strategy combining a direct Model
Reference Adaptive Control (MRAC) with a robust state feedback for
current control of grid-connected converters with LCL filters
operating under grid impedance variations. The MRAC is based on a
gradient law, providing properly current reference tracking and
voltage disturbance rejection. The inclusion of a state feedback
inner loop provides robust active damping of the filter resonance
for an entire range of grid impedances. A systematic control
design procedure is proposed, and the combination of both control
actions in a multi-loop approach does not add significant
computational complexity. The proposal allows to increase the MRAC
gains adaptation dynamics, providing suitable responses under grid
current reference variations and under typical grid voltage
disturbances, including grid faults. Performance indexes as the
grid-currents total harmonic distortion and the mean squared error
are also improved. In addition, robust stability analysis based on
Lyapunov functions are carried out for the inner control loop and
for the outer control loop, considering the grid impedance
uncertain and with unmodeled dynamics. The strategy is implemented
in a commercial digital signal processor, and the compliance of
the grid currents with the IEEE 1547 Std. is verified with
controller hardware-in-the-loop and experimental results in a 5.4
kW prototype.",
doi = "10.1016/j.conengprac.2023.105591",
url = "http://dx.doi.org/10.1016/j.conengprac.2023.105591",
issn = "0967-0661",
label = "lattes: 5932117211446307 5 HollwegTMBMKOM:2023:MoReAd",
language = "en",
targetfile = "1-s2.0-S0967066123001600-main.pdf",
urlaccessdate = "05 maio 2024"
}