@Article{MattosBoOsKoOlMo:2022:RoOpCu,
               author = "Mattos, Everson and Borin, Lucas C. and Osorio, Caio R. D. and 
                         Koch, Gustavo G. and Oliveira, Ricardo C. L. F. and Montagner, 
                         Vinicius F.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Robust Optimized Current Controller Based on a Two-Step Procedure 
                         for Grid-Connected Converters",
              journal = "IEEE Transactions on Industry Applications",
                 year = "2022",
               volume = "1",
                pages = "1--11",
                 note = "{Setores de Atividade: Pesquisa e desenvolvimento 
                         cient{\'{\i}}fico.}",
             keywords = "Grid-connected converter, Hardware-in-the-loop, Linear matrix 
                         inequalities, Particle swarm optimization, Proportional-resonant 
                         controller.",
             abstract = "Proportional-resonant controllers are largely used for 
                         grid-connected converters with LCL filters to ensure sinusoidal 
                         reference tracking and harmonic disturbance rejection. However, 
                         the design of such controllers becomes more difficult when it is 
                         necessary to ensure stability and suitable performance for 
                         converters operating under uncertain grid conditions, from stiff 
                         to weaker, and also when the number of resonants increases. In 
                         this more challenging scenario, available design procedures may 
                         lead to a poor tradeoff between transient and steady-state 
                         performances. To overcome this problem, this paper proposes an 
                         off-line automated control design procedure to obtain multiple 
                         robust optimized proportional-resonant controllers. The proposed 
                         procedure consists of two steps, where a particle swarm algorithm 
                         is used to obtain: i) the gains of an inner loop ensuring optimal 
                         active damping for the LCL filter resonance; ii) the gains of 
                         multiple proportional-resonant controllers by minimizing a 
                         tracking error index, taking into account uncertain grid impedance 
                         and control signal limits. The robust stability of the closed-loop 
                         system with the control gains tuned by the metaheuristics is 
                         certificated through a parameter-dependent Lyapunov function, 
                         constructed based on linear matrix inequalities. Several results 
                         from control Hardware-in-the-loop are presented for a case study, 
                         revealing that the proposal provides better performance in terms 
                         of reference tracking and disturbance rejection, when compared to 
                         similar control strategies from the literature. Experimental 
                         results from a prototype connected to the utility grid attest the 
                         practical feasibility of the proposed procedure.",
                  doi = "10.1109/TIA.2022.3211251",
                  url = "http://dx.doi.org/10.1109/TIA.2022.3211251",
                 issn = "0093-9994",
                label = "lattes: 5932117211446307 1 MattosBoOsKoOlMo:2022:RoOpCu",
             language = "pt",
           targetfile = "
                         
                         Robust_Optimized_Current_Controller_Based_on_a_Two-Step_Procedure_for_Grid-Connected_Converters.pdf",
                  url = "https://ieeexplore.ieee.org/document/9907862",
        urlaccessdate = "05 maio 2024"
}