@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 = "04 maio 2024"
}