Search Results - "Evald, J."

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    Optimized Parameters Initialization of a RMRAC Controller Applied to Grid-Connected Converters by Hollweg, Guilherme V., de O. Evald, Paulo J. D., Mattos, E., Borin, L. C., Tambara, R. V., Montagner, V. F.

    “…This work aims to present a proposal for optimized initialization of parameters with the aid of meta-heuristics of a Robust Model Reference Adaptive Controller…”
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    Conference Proceeding
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    A Direct Adaptive Controller with Harmonic Compensation for Grid-connected Converters by Hollweg, Guilherme V., Evald, Paulo J. D. O., Mattos, Everson, Borin, Lucas C., Tambara, Rodrigo V., Grundling, Hilton A., Su, Wencong

    “…Grid-connected converters are uncertain time-varying systems, whose controllers must deal with the relevant inductive content and high harmonic distortion of…”
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    Journal Article
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    A Discrete-Time Robust Adaptive PI Controller for Grid-Connected Voltage Source Converter with LCL Filter by Paulo J. D. O. Evald, Guilherme V Hollweg, Rodrigo V. Tambara, Hilton A. Gründling

    Published in Eletrônica de Potência (31-03-2021)
    “…In this work, it is presented a new direct discrete-time robust adaptive PI (Proportional Integral) Controller for grid-injected current control loop of a…”
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    Journal Article
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    A Direct Discrete-Time Reduced Order Robust Model Reference Adaptive Control for Grid-Tied Power Converters with Lcl Filter by Paulo J. D. O. Evald, Rodrigo V. Tambara, Hilton A. Gründling

    Published in Eletrônica de Potência (30-09-2020)
    “…In this work is presented the design of a direct discrete-time reduced order RMRAC (Robust Model Reference Adaptive Control) applied to the grid-side current…”
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    Journal Article
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    Volume Change Estimation of Underwater Structures using 2D Sonar Data by Maurell, Igor P., Dos Santos, Matheus M., Evald, Paulo J. D. O., Justo, Bruno H., Arigony-Neto, Jorge, Vieira, Antonio W., Botelho, Silvia S. C., Drews-Jr, Paulo L. J.

    Published in IEEE sensors journal (2022)
    “…Sonar sensors are an important source of data for understanding underwater environments because the sound is invariant to water turbidity, as well as…”
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    Journal Article
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    iLocator—A low cost IoT-based hybrid architecture for tracking and locating objects in indoor environments by Marquezan, Lucas, Peñaloza, Elmer A. Gamboa, de Oliveira Evald, Paulo J.D., Cely, Marlon M. Hernandez, Rossi, Marcelo L., de Lima, Sigmar

    Published in Internet of things (Amsterdam. Online) (01-12-2024)
    “…The tracking of objects in external environments is well established in the literature. Various approaches are based on the data provided by satellite…”
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    Journal Article
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    A Comparative Study on Sigma-Point Kalman Filters for Trajectory Estimation of Hybrid Aerial-Aquatic Vehicles by da Rosa, Romulo T. S., Evald, Paulo J. D. O., Drews, Paulo L.J., Neto, Armando A., Horn, Alexandre C., Azzolin, Rodrigo Z., Botelho, Silvia S. C.

    “…In this paper, a study on nonlinear state estimation methods for Hybrid Unmanned Aerial Underwater Vehicles (HUAUVs) is presented. Based on a detailed dynamic…”
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    Conference Proceeding
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    Controlador Robusto Adaptativo Super-Twisting Sliding Mode por Modelo de Referência para Regulação das Correntes Injetadas em Redes Fracas por Inversores Trifásicos com Filtro LCL by Guilherme V. Hollweg, Paulo J. D. O. Evald, Gustavo Guilherme Koch, Everson Mattos, Rodrigo V. Tambara, Hilton A. Gründling

    Published in Eletrônica de Potência (30-06-2021)
    “…Neste artigo é apresentada uma nova estrutura de controle robusta adaptativa, resultante da união de um Controlador Robusto Adaptativo por Modelo de Referência…”
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    Journal Article
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    Comparação Entre Controladores por Realimentação Parcial e Total de Estados Otimizados para Conversores Conectados à Rede Sujeitos a Incertezas Paramétricas by Everson Mattos, Lucas C. Borin, Paulo J. D. de O. Evald, Guilherme V. Hollweg, Vinícius F. Montagner

    Published in Eletrônica de Potência (18-01-2023)
    “…Este artigo propõe uma comparação de técnicas de realimentação de estados, utilizando duas malhas de controle para a regulação das correntes de conversores…”
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    Journal Article
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    Inversor Quasi-Z-Source Fotovoltaico Conectado à Rede com Filtro LCL Utilizando Uma Estrutura MRAC-SM Cascata com Modelo Reduzido para Aplicações em Redes Fracas by Guilherme V. Hollweg, Paulo J. D. O. Evald, Rodrigo V. Tambara, Rodrigo Z. Azzolin, Hilton A. Grundling, Mário L. S. Martins

    Published in Eletrônica de Potência (30-06-2021)
    “…Este trabalho propõe a utilização de uma estrutura cascata de controladores adaptativos do tipo entrada-saída por modelo de referência (MRAC) utilizando…”
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    Journal Article
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    Underwater enhancement based on a self-learning strategy and attention mechanism for high-intensity regions by MelloJr, Claudio D, Moreira, Bryan U, Evald, Paulo J. O, DrewsJr, Paulo L, Botelho, Silvia S

    Published 04-08-2022
    “…Images acquired during underwater activities suffer from environmental properties of the water, such as turbidity and light attenuation. These phenomena cause…”
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    Journal Article
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    A Robust Adaptive Predictive Super-Twisting Sliding Mode controller for grid-tied converters by Evald, Paulo J. D. O., Hollweg, Guilherme V., Grundling, Hilton A.

    “…This paper presents a Robust Adaptive Predictive Super-Twisting Sliding Mode controller for grid-injected current control of a grid-tied power converter with…”
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    Conference Proceeding
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    A Least-Squares-based Adaptive PI Controller for grid-tied DC-AC converters by Evald, Paulo J. D. O., Hollweg, Guilherme V., Grundling, Hilton A.

    “…Renewable energy generation has been a feasible solution for global energy matrix transformation. For this application, grid-tied power converters with LCL…”
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    Conference Proceeding
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    A Least-Square-based RMRAC for Grid-tied Voltage Source Inverters with LCL Filter by Evald, Paulo J. D. O., Hollweg, Guilherme V., Mattos, E., Borin, L. C., Tambara, R. V., Montagner, V. F.

    “…Renewable energy generation systems commonly use LCL filters as interfaces between them and the grid, aiming to reduce the harmonic content of Voltage Source…”
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    Conference Proceeding