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Renan Landau Paiva de Medeiros
Department of Eletricity, Faculty of Technology, UFAM, 67892 Manaus, Amazonas Brazil 69077-000

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Journal article
Published: 25 August 2020 in IEEE Transactions on Power Electronics
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This study presents the design and evaluation of robust controllers, based on linear programming, Kharitonov's theorem and Chebyshev's theorem, in order to enhance the performance of a typical structure of multi-stage converters present in direct current (dc) systems. In such electric power distribution systems, point-of-load converters act as a constant power load (CPL), which introduces a destabilizing nonlinear effects to their supply bus voltage. The multi-stage converter system uses a simplified scheme based on cascaded converter, which is comprised of two dc-dc buck converter in series connection. The robust controllers evaluated overcome the negative incremental impedance instability problem due to CPL, which causes a high risk of instability in interconnected converters. Thereby, the robust controllers evaluated ensure robust control performance and stability with a minor performance degradation compared to a conventional controller when the cascaded converter system is subjected to parametric uncertainties. The control methodologies evaluated are applied in both dc-dc buck converters. Assessments on the performance of the control methodologies evaluated are conducted. Experimental validations on a 150-W dc-dc cascaded converter system test board are carried out to verify the theoretical claims.

ACS Style

Kevin E. Lucas; Daniel Juan Pagano; David Alejandro Vaca-Benavides; Ronald Garcia-Arcos; Erick Melo Rocha; Renan Landau Paiva de Medeiros; Sara J. Rios. Robust Control of Interconnected Power Electronic Converters to Enhance Performance in DC Distribution Systems: A Case of Study. IEEE Transactions on Power Electronics 2020, 36, 4851 -4863.

AMA Style

Kevin E. Lucas, Daniel Juan Pagano, David Alejandro Vaca-Benavides, Ronald Garcia-Arcos, Erick Melo Rocha, Renan Landau Paiva de Medeiros, Sara J. Rios. Robust Control of Interconnected Power Electronic Converters to Enhance Performance in DC Distribution Systems: A Case of Study. IEEE Transactions on Power Electronics. 2020; 36 (4):4851-4863.

Chicago/Turabian Style

Kevin E. Lucas; Daniel Juan Pagano; David Alejandro Vaca-Benavides; Ronald Garcia-Arcos; Erick Melo Rocha; Renan Landau Paiva de Medeiros; Sara J. Rios. 2020. "Robust Control of Interconnected Power Electronic Converters to Enhance Performance in DC Distribution Systems: A Case of Study." IEEE Transactions on Power Electronics 36, no. 4: 4851-4863.

Conference paper
Published: 11 August 2020 in Smart Trends in Computing and Communications: Proceedings of SmartCom 2020
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ACS Style

Isaías V. De Bessa; Renan Landau Paiva De Medeiros. Investigation of the Performance of the Control Methodologies to Mitigate the Undesirable Oscillation in a Smart Grid System. Smart Trends in Computing and Communications: Proceedings of SmartCom 2020 2020, 406 -415.

AMA Style

Isaías V. De Bessa, Renan Landau Paiva De Medeiros. Investigation of the Performance of the Control Methodologies to Mitigate the Undesirable Oscillation in a Smart Grid System. Smart Trends in Computing and Communications: Proceedings of SmartCom 2020. 2020; ():406-415.

Chicago/Turabian Style

Isaías V. De Bessa; Renan Landau Paiva De Medeiros. 2020. "Investigation of the Performance of the Control Methodologies to Mitigate the Undesirable Oscillation in a Smart Grid System." Smart Trends in Computing and Communications: Proceedings of SmartCom 2020 , no. : 406-415.

Journal article
Published: 04 August 2020 in ISA Transactions
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In this work, a novel methodology for tuning fractional order controller, so-called fractional order pole placement (FOPP) is proposed. The proposed methodology extends classical (integer order) pole placement technique, using commensurable transfer functions for representing fractional order controllers and placing the fractional dominant poles within an extended stability region based on three terms fractional transfer functions. The designed fractional order controller can be digitally implemented by using the Oustaloup integer approximation of the fractional order dynamics with Hankel model reduction. The proposed FOPP is used to design fractional order controllers for a DC/DC buck converter. The experimental tests include comparisons between the proposed FOPP and other tuning methodologies for integer and fractional order controllers for the DC/DC buck converter that is subject to load, parametric, and load variations. Integral indices are computed to aid the assessment of the control strategies with respect to the robustness, performance specification compliance, and control effort. The results show that the proposed method outperforms the other approaches when occurs the variations.

ACS Style

Florindo A. De C. Ayres; Iury Valente de Bessa; Vinicius Matheus Batista Pereira; Nei Junior Da Silva Farias; Alessandra Ribeiro de Menezes; Renan L.P. de Medeiros; João Edgar Chaves; Marcelo K. Lenzi; Carlos Tavares da Costa. Fractional Order Pole Placement for a buck converter based on commensurable transfer function. ISA Transactions 2020, 107, 370 -384.

AMA Style

Florindo A. De C. Ayres, Iury Valente de Bessa, Vinicius Matheus Batista Pereira, Nei Junior Da Silva Farias, Alessandra Ribeiro de Menezes, Renan L.P. de Medeiros, João Edgar Chaves, Marcelo K. Lenzi, Carlos Tavares da Costa. Fractional Order Pole Placement for a buck converter based on commensurable transfer function. ISA Transactions. 2020; 107 ():370-384.

Chicago/Turabian Style

Florindo A. De C. Ayres; Iury Valente de Bessa; Vinicius Matheus Batista Pereira; Nei Junior Da Silva Farias; Alessandra Ribeiro de Menezes; Renan L.P. de Medeiros; João Edgar Chaves; Marcelo K. Lenzi; Carlos Tavares da Costa. 2020. "Fractional Order Pole Placement for a buck converter based on commensurable transfer function." ISA Transactions 107, no. : 370-384.

Journal article
Published: 24 July 2020 in Energies
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This paper presents a novel direct form to design a digital robust control using RST structure (i.e., name given because of the R, S and T polynomials computed) based on convex optimization such as Chebyshev sphere; this approach was applied to a DC-DC Buck converter. This methodology takes into account parametric uncertainties and a Chebyshev sphere constraint in order to ensure robust performance and stability of the system in the discrete domain. For this purpose, a mathematical model for the DC-DC Buck converter is presented when considering uncertainties in electrical variables, such as load resistance, inductance, capacitance, and source voltage variation, also to obtain the discrete model of the system by using the bilinear transformation. The proposed methodology is compared with two other approaches designed in a discrete domain: the classical pole placement and the robust methodology based on the Kharitonov theorem. Wide-ranging experiments are performed in order to evaluate the behavior of the control methodologies when the system is subject to parametric variations of the load resistance and voltage setpoint variation. The results show that the proposed methodology outperforms the other approaches in 90% of the tests and ensures robust stability and robust performance when the system is subjected to a parametric uncertainties family.

ACS Style

Cleonor Das Neves; Walter B.; Renan De Medeiros; Florindo Ayres Junior; Iury Bessa; Isaías Bessa; Gabriela De M. Veroneze; Luiz E Silva; Nei Farias. Direct Form Digital Robust RST Control Based on Chebyshev Sphere Optimization Applied in a DC-DC Power Converter. Energies 2020, 13, 3810 .

AMA Style

Cleonor Das Neves, Walter B., Renan De Medeiros, Florindo Ayres Junior, Iury Bessa, Isaías Bessa, Gabriela De M. Veroneze, Luiz E Silva, Nei Farias. Direct Form Digital Robust RST Control Based on Chebyshev Sphere Optimization Applied in a DC-DC Power Converter. Energies. 2020; 13 (15):3810.

Chicago/Turabian Style

Cleonor Das Neves; Walter B.; Renan De Medeiros; Florindo Ayres Junior; Iury Bessa; Isaías Bessa; Gabriela De M. Veroneze; Luiz E Silva; Nei Farias. 2020. "Direct Form Digital Robust RST Control Based on Chebyshev Sphere Optimization Applied in a DC-DC Power Converter." Energies 13, no. 15: 3810.

Journal article
Published: 25 May 2020 in Energies
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The DC microgrid system is composed by converters that operate like feeders and loads. Among these loads, we highlight the constant power loads (CPLs) that may cause instability in the microgrid, observed in the form of undesired oscillations due to its negative impedance behavior. Therefore, this work proposes to use performance indices and stability margins to evaluate state and output feedback control strategies for stabilization of DC microgrids. In particular, it is proposed to evaluate the stability margin of the proposed methodologies by means of the impedance relations in the microgrid based on the Middlebrook criterion. Our simulations and tests showed the relation between the performance and stability degradation and the microgrid impedances variation.

ACS Style

Isaías V. De Bessa; Renan L. P. De Medeiros; Iury Bessa; Florindo A. C. Ayres Junior; Alessandra R. De Menezes; Gustavo M. Torres; João Edgar Chaves Filho. Comparative Study of Control Strategies for Stabilization and Performance Improvement of DC Microgrids with a CPL Connected. Energies 2020, 13, 2663 .

AMA Style

Isaías V. De Bessa, Renan L. P. De Medeiros, Iury Bessa, Florindo A. C. Ayres Junior, Alessandra R. De Menezes, Gustavo M. Torres, João Edgar Chaves Filho. Comparative Study of Control Strategies for Stabilization and Performance Improvement of DC Microgrids with a CPL Connected. Energies. 2020; 13 (10):2663.

Chicago/Turabian Style

Isaías V. De Bessa; Renan L. P. De Medeiros; Iury Bessa; Florindo A. C. Ayres Junior; Alessandra R. De Menezes; Gustavo M. Torres; João Edgar Chaves Filho. 2020. "Comparative Study of Control Strategies for Stabilization and Performance Improvement of DC Microgrids with a CPL Connected." Energies 13, no. 10: 2663.

Journal article
Published: 25 May 2020 in IEEE Access
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This study presents the design and evaluation of a robust controller, based on frequency-domain, in order to enhance the performance of dc-dc power converters under parametric uncertainties. This robust control approach takes into account all possible uncertainties in the system such as load and input voltage variations. Thereby, the robust controller design is based on the constraints of the gain and/or phase margins delimited by these uncertainties in order to ensure robust performance and stability of the system. Assessments on the performance of the proposed robust control are conducted. Comparisons with other control methods are also provided. Experimental validations on a dc-dc buck converter system test board are carried out to verify the theoretical claims.

ACS Style

Erick Melo Rocha; Walter Barra; Kevin E. Lucas; Renan L. P. Medeiros; David Alejandro Vaca-Benavides. Design and Experimental Assessment of a Robust Voltage Control for DC-DC Converters Considering Components Parametric Uncertainties. IEEE Access 2020, 8, 109217 -109231.

AMA Style

Erick Melo Rocha, Walter Barra, Kevin E. Lucas, Renan L. P. Medeiros, David Alejandro Vaca-Benavides. Design and Experimental Assessment of a Robust Voltage Control for DC-DC Converters Considering Components Parametric Uncertainties. IEEE Access. 2020; 8 (99):109217-109231.

Chicago/Turabian Style

Erick Melo Rocha; Walter Barra; Kevin E. Lucas; Renan L. P. Medeiros; David Alejandro Vaca-Benavides. 2020. "Design and Experimental Assessment of a Robust Voltage Control for DC-DC Converters Considering Components Parametric Uncertainties." IEEE Access 8, no. 99: 109217-109231.

Journal article
Published: 05 May 2020 in Applied Soft Computing
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Automatic routines for Fault Detection and Diagnosis (FDD) are very important in industrial monitoring systems. However, false alarms potentially occur. High false alarm rates may lead to outages and consequent losses in the production process. To address such problem, a new FDD strategy based on type-2 fuzzy systems is proposed herein to minimize the false alarm rate. By applying system identification techniques, parametric models are estimated in order to represent the operation of the system under several levels of fault severity. The test system is a detailed dynamic nonlinear model of induction motor drive. The faults considered were partial short-circuit in stator winding coils. A performance comparison was made by implementing the monitoring system with both a type-2 fuzzy system interval and a type-1 fuzzy system. The results obtained thereby showed the improved performance and robustness of type-2 fuzzy system-based monitoring system, which outdoes the performance obtained by a type-1 fuzzy system. Furthermore, the performance of the proposed type-2 fuzzy system-based monitoring system may be further improved by using a Genetic Algorithm for tuning the parameters of the fuzzy type-2 system.

ACS Style

Erick Melo Rocha; WalterBarra Junior; Kevin E. Lucas; Carlos Tavares Da Costa Júnior; José Gracildo De Carvalho Júnior; Renan Landau Paiva de Medeiros; Fabrício Gonzalez Nogueira. A fuzzy type-2 fault detection methodology to minimize false alarm rate in induction motor monitoring applications. Applied Soft Computing 2020, 93, 106373 .

AMA Style

Erick Melo Rocha, WalterBarra Junior, Kevin E. Lucas, Carlos Tavares Da Costa Júnior, José Gracildo De Carvalho Júnior, Renan Landau Paiva de Medeiros, Fabrício Gonzalez Nogueira. A fuzzy type-2 fault detection methodology to minimize false alarm rate in induction motor monitoring applications. Applied Soft Computing. 2020; 93 ():106373.

Chicago/Turabian Style

Erick Melo Rocha; WalterBarra Junior; Kevin E. Lucas; Carlos Tavares Da Costa Júnior; José Gracildo De Carvalho Júnior; Renan Landau Paiva de Medeiros; Fabrício Gonzalez Nogueira. 2020. "A fuzzy type-2 fault detection methodology to minimize false alarm rate in induction motor monitoring applications." Applied Soft Computing 93, no. : 106373.

Journal article
Published: 01 October 2019 in DYNA
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En este artículo se pretende llevar a cabo una evaluación experimental de la utilización de técnicas de asignación de polos en el control Fuzzy aplicadas al flujo de CC en un sistema fotovoltaico autónomo, con el fin de garantizar una condición de estabilidad y un determinado rendimiento para la operación del sistema. Es presentado en la primera etapa del trabajo un modelo matemático que describe adecuadamente el comportamiento dinámico en cuestión fue linealizado el sistema en torno a un punto de operación haciendo uso de las series de Taylor, seguido por el análisis en un ambiente computacional del modelo linealizado del sistema fotovoltaico. Posteriormente, se evaluó de manera experimental el comportamiento dinámico en lazo abierto del sistema fotovoltaico autónomo, observando sus principales variables eléctricas (voltaje y corriente eléctrica). En la segunda etapa del trabajo, se investigó experimentalmente la aplicación de las técnicas de diseño de controladores PI clásico y controladores Fuzzy, con el objetivo de evaluar el comportamiento dinámico del sistema en lazo cerrado y garantizar la estabilidad de este, para pruebas en la variación del voltaje de referencia. Por fin, se presentaron los resultados de la evaluación experimental que demostró un mejor desempeño del controlador Fuzzy en comparación al controlador proyectado por la metodología clásica, cuando utilizada una planta fotovoltaica autónoma

ACS Style

Cleonor Crescêncio Das Neves Das Neves; Renan Landau Paiva De Medeiros; Walter Barra Junior Barra Junior; Florindo Antônio De Carvalho Ayres Junior Ayres Junior; Felipe Kioshi Yoshino Yoshino; Adrian Eduardo Gonzalez Barreda. Evaluación experimental del rendimiento de los controladores Fuzzy aplicados en un sistema fotovoltaico autónomo. DYNA 2019, 86, 354 -362.

AMA Style

Cleonor Crescêncio Das Neves Das Neves, Renan Landau Paiva De Medeiros, Walter Barra Junior Barra Junior, Florindo Antônio De Carvalho Ayres Junior Ayres Junior, Felipe Kioshi Yoshino Yoshino, Adrian Eduardo Gonzalez Barreda. Evaluación experimental del rendimiento de los controladores Fuzzy aplicados en un sistema fotovoltaico autónomo. DYNA. 2019; 86 (211):354-362.

Chicago/Turabian Style

Cleonor Crescêncio Das Neves Das Neves; Renan Landau Paiva De Medeiros; Walter Barra Junior Barra Junior; Florindo Antônio De Carvalho Ayres Junior Ayres Junior; Felipe Kioshi Yoshino Yoshino; Adrian Eduardo Gonzalez Barreda. 2019. "Evaluación experimental del rendimiento de los controladores Fuzzy aplicados en un sistema fotovoltaico autónomo." DYNA 86, no. 211: 354-362.

Journal article
Published: 06 May 2019 in IEEE Access
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In recent years, dc microgrid (MG) is increasing rapidly in electric power grids and other isolated systems, integrating more efficiency and suite better some of the renewable energy sources, storage units, and dc loads. However, dc MG stability analysis becomes a challenge when constant power loads (CPLs) are applied to dc bus, which introduces destabilizing effects in the system due to its negative impedance characteristics. This paper presents a novel robust controller, based on linear programming based on the Chebyshev theorem as a robust control technique considering the Kharitonov's theorem that ensures the minimization of the total deviation from the desired performance in a closed-loop system, specified by a family of characteristic polynomials. The purpose of the proposed controller is to tightly regulate the dc bus voltage, ensuring MG stability due to the effects of power variation on CPLs. The simulation and experimental tests are performed by using a MATLAB/Simulink simulator and a developed prototype of the DC MG system, respectively, to ratify the robustness and effectiveness of the proposed method of robust controller design.

ACS Style

Kevin Eduardo Lucas-Marcillo; Douglas Antonio Plaza Guingla; Walter Barra; Renan Landau Paiva De Medeiros; Erick Melo Rocha; David Alejandro Vaca-Benavides; Sara Ríos; Efren Vinicio Herrera Muentes. Novel Robust Methodology for Controller Design Aiming to Ensure DC Microgrid Stability Under CPL Power Variation. IEEE Access 2019, 7, 64206 -64222.

AMA Style

Kevin Eduardo Lucas-Marcillo, Douglas Antonio Plaza Guingla, Walter Barra, Renan Landau Paiva De Medeiros, Erick Melo Rocha, David Alejandro Vaca-Benavides, Sara Ríos, Efren Vinicio Herrera Muentes. Novel Robust Methodology for Controller Design Aiming to Ensure DC Microgrid Stability Under CPL Power Variation. IEEE Access. 2019; 7 ():64206-64222.

Chicago/Turabian Style

Kevin Eduardo Lucas-Marcillo; Douglas Antonio Plaza Guingla; Walter Barra; Renan Landau Paiva De Medeiros; Erick Melo Rocha; David Alejandro Vaca-Benavides; Sara Ríos; Efren Vinicio Herrera Muentes. 2019. "Novel Robust Methodology for Controller Design Aiming to Ensure DC Microgrid Stability Under CPL Power Variation." IEEE Access 7, no. : 64206-64222.

Journal article
Published: 29 April 2019 in IEEE Access
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This article shows an environment for performing data collection in the computational system that provides the response service to “HTTP” requests and makes interventions in the values of the available parameters in order to control the system automatically in closed loop. The parameters to be obtained as endogenous variables of the computational system are MaxRequestWorks and KeppAliveTimeOut, and the exogenous ones will be the amount of memory consumed and the percentage of processor occupation time. The tool developed modifies neither the source code of the response software to the clients’ “HTTP” requests nor the operating system code of the host computer, being non-intrusive regarding original system configuration. A proportional-integral (PI) controller was designed in order to keep the average perceived time response of “HTTP” messages regulated. Experimental tests carried out on an Apache Web server show the improvement obtained on the system’s time response.

ACS Style

Marcos V. S. Barreto; Walter Barra; Erick Melo Rocha; Fabricio G. Nogueira; Kevin Lucas Marcillo; Renan Landau Paiva De Medeiros; Thiago W. M. Abreu; Maysa Sousa Alves. Apache Dynamic Update for Feedback Control of Computing Resources. IEEE Access 2019, 7, 55861 -55872.

AMA Style

Marcos V. S. Barreto, Walter Barra, Erick Melo Rocha, Fabricio G. Nogueira, Kevin Lucas Marcillo, Renan Landau Paiva De Medeiros, Thiago W. M. Abreu, Maysa Sousa Alves. Apache Dynamic Update for Feedback Control of Computing Resources. IEEE Access. 2019; 7 (99):55861-55872.

Chicago/Turabian Style

Marcos V. S. Barreto; Walter Barra; Erick Melo Rocha; Fabricio G. Nogueira; Kevin Lucas Marcillo; Renan Landau Paiva De Medeiros; Thiago W. M. Abreu; Maysa Sousa Alves. 2019. "Apache Dynamic Update for Feedback Control of Computing Resources." IEEE Access 7, no. 99: 55861-55872.

Journal article
Published: 25 February 2019 in IEEE Access
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Multi-converter electronic systems are becoming widely used in many industrial applications; therefore, the stability of whole system is a big concern to real-world power supplies applications. A multi-converter system comprised of cascaded converters has a basic configuration that consists of two or more converters in series connection, where the first is a source converter that maintains a regulated DC voltage on the intermediate bus while remaining are load converters that convert the intermediate bus voltage to tightly regulated outputs for the next system stage or load. Instability in cascaded systems may occur due to the constant power load (CPL), which is a behavior of the tightly regulated converters. CPLs exhibit incremental negative resistance behavior causing a high risk of instability in interconnected converters. In addition, there are other problems apart from the CPL, e.g., non-linearities due to the inductive element and uncertainties due to imprecision of mathematical model of DC-DC converters. Aiming to effectively mitigate oscillations effects in output of source converter loaded with a CPL, in this paper, an interval robust controller, by Linear Programming based on Kharitonov Rectangle, is proposed to regulate the output of source converter. Several tests were developed by using an experimental plant and simulation models, when the multi-converter buck-buck system is subjected to a variation of power reference. Both simulation and experimental results show the effectiveness of the proposed controller. Furthermore, the performance indices computed from experimental data show that the proposed controller outperforms classical control technique.

ACS Style

Kevin Eduardo Lucas Marcillo; Douglas Antonio Plaza Guingla; Walter Barra; Renan Landau Paiva De Medeiros; Erick Melo Rocha; David Alejandro Vaca Benavides; Fabricio Gonzalez Nogueira. Interval Robust Controller to Minimize Oscillations Effects Caused by Constant Power Load in a DC Multi-Converter Buck-Buck System. IEEE Access 2019, 7, 26324 -26342.

AMA Style

Kevin Eduardo Lucas Marcillo, Douglas Antonio Plaza Guingla, Walter Barra, Renan Landau Paiva De Medeiros, Erick Melo Rocha, David Alejandro Vaca Benavides, Fabricio Gonzalez Nogueira. Interval Robust Controller to Minimize Oscillations Effects Caused by Constant Power Load in a DC Multi-Converter Buck-Buck System. IEEE Access. 2019; 7 (99):26324-26342.

Chicago/Turabian Style

Kevin Eduardo Lucas Marcillo; Douglas Antonio Plaza Guingla; Walter Barra; Renan Landau Paiva De Medeiros; Erick Melo Rocha; David Alejandro Vaca Benavides; Fabricio Gonzalez Nogueira. 2019. "Interval Robust Controller to Minimize Oscillations Effects Caused by Constant Power Load in a DC Multi-Converter Buck-Buck System." IEEE Access 7, no. 99: 26324-26342.

Journal article
Published: 08 October 2018 in IEEE Access
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This paper describes a simulator for the three-tank system process named Sim3Tanks. This process presents a hybrid and nonlinear behavior and it is subject to different kinds of perturbations, faults, and noises. Sim3Tanks was developed in the MATLAB/Simulink environment and can be used via graphical user interface, Simulink block diagram, and command-line. Sim3Tanks is suitable for studying and developing process control, fault detection and isolation, and fault tolerant control strategies for nonlinear multi-variable systems. In order to illustrate the potential of Sim3Tanks, four scenarios are discussed throughout this paper: PID control strategies for the level and flow rates; a fault detection algorithm based on unscented Kalman filter and generalized likelihood ratio; a fault isolation system based on Bayesian networks; and a control reconfiguration based on static virtual actuator and sensor. A video demonstration of Sim3Tanks can be found at https://github.com/e-controls/Sim3Tanks.

ACS Style

Arllem O. Farias; Gabriel Alisson C. Queiroz; Iury V. Bessa; Renan Landau P. Medeiros; Lucas C. Cordeiro; Reinaldo M. Palhares. Sim3Tanks: A Benchmark Model Simulator for Process Control and Monitoring. IEEE Access 2018, 6, 62234 -62254.

AMA Style

Arllem O. Farias, Gabriel Alisson C. Queiroz, Iury V. Bessa, Renan Landau P. Medeiros, Lucas C. Cordeiro, Reinaldo M. Palhares. Sim3Tanks: A Benchmark Model Simulator for Process Control and Monitoring. IEEE Access. 2018; 6 (99):62234-62254.

Chicago/Turabian Style

Arllem O. Farias; Gabriel Alisson C. Queiroz; Iury V. Bessa; Renan Landau P. Medeiros; Lucas C. Cordeiro; Reinaldo M. Palhares. 2018. "Sim3Tanks: A Benchmark Model Simulator for Process Control and Monitoring." IEEE Access 6, no. 99: 62234-62254.

Journal article
Published: 13 September 2018 in The International Journal of Electrical Engineering & Education
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ACS Style

Renan Lp De Medeiros; Florindo Ac Ayres; Walter Barra; Cleonor C Das Neves; Carlos T Costa; José Al Barreiros; Petrônio Vieira. Strengthening of students’ skills through practical tests in a belt conveyor training system. The International Journal of Electrical Engineering & Education 2018, 1 .

AMA Style

Renan Lp De Medeiros, Florindo Ac Ayres, Walter Barra, Cleonor C Das Neves, Carlos T Costa, José Al Barreiros, Petrônio Vieira. Strengthening of students’ skills through practical tests in a belt conveyor training system. The International Journal of Electrical Engineering & Education. 2018; ():1.

Chicago/Turabian Style

Renan Lp De Medeiros; Florindo Ac Ayres; Walter Barra; Cleonor C Das Neves; Carlos T Costa; José Al Barreiros; Petrônio Vieira. 2018. "Strengthening of students’ skills through practical tests in a belt conveyor training system." The International Journal of Electrical Engineering & Education , no. : 1.

Journal article
Published: 08 August 2018 in Energies
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In this paper, a Fractional Order Power System controller (FOPSS) is designed, and its performance and robustness are experimentally evaluated by tests in a 10 kVA laboratory scale power system. The FOPSS design methodology is based on the tuning of an additional design variable, namely the fractional order of the controller transfer function. This design variable is tuned aiming to obtain a tradeoff between satisfactory damping of dominant oscillating mode and improved closed-loop system robustness. For controller synthesis, transfer function models were estimated from data collected at selected operating points and subsequently applied for the controller design and for obtaining upper bounds estimates on the operating-point depends on plant uncertainties. The experimental results show that the FOPPS was able to obtain a robust performance for the considered set of the power system operating conditions.

ACS Style

Florindo A. De C. Ayres Junior; Carlos T. Da Costa Junior; Renan L. P. De Medeiros; Walter Barra Junior; Cleonor C. Das Neves; Marcelo K. Lenzi; Gabriela De M. Veroneze. A Fractional Order Power System Stabilizer Applied on a Small-Scale Generation System. Energies 2018, 11, 2052 .

AMA Style

Florindo A. De C. Ayres Junior, Carlos T. Da Costa Junior, Renan L. P. De Medeiros, Walter Barra Junior, Cleonor C. Das Neves, Marcelo K. Lenzi, Gabriela De M. Veroneze. A Fractional Order Power System Stabilizer Applied on a Small-Scale Generation System. Energies. 2018; 11 (8):2052.

Chicago/Turabian Style

Florindo A. De C. Ayres Junior; Carlos T. Da Costa Junior; Renan L. P. De Medeiros; Walter Barra Junior; Cleonor C. Das Neves; Marcelo K. Lenzi; Gabriela De M. Veroneze. 2018. "A Fractional Order Power System Stabilizer Applied on a Small-Scale Generation System." Energies 11, no. 8: 2052.

Journal article
Published: 01 July 2018 in Eletrônica de Potência
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ACS Style

Renan Landau Paiva De Medeiros; Duaymy Bruno Rodrigues Góes; Florindo Antônio De Carvalho Ayres Junior; Walter Barra Junior; Cleonor Crescêncio Das Neves; Erick Melo Rocha. EXPERIMENTAL ASSESSMENT OF A ROBUST CONTROLLER DESIGN VIA INTERVAL ANALYSIS APPLIED TO A DC-DC BUCK CONVERTER. Eletrônica de Potência 2018, 23, 1 -11.

AMA Style

Renan Landau Paiva De Medeiros, Duaymy Bruno Rodrigues Góes, Florindo Antônio De Carvalho Ayres Junior, Walter Barra Junior, Cleonor Crescêncio Das Neves, Erick Melo Rocha. EXPERIMENTAL ASSESSMENT OF A ROBUST CONTROLLER DESIGN VIA INTERVAL ANALYSIS APPLIED TO A DC-DC BUCK CONVERTER. Eletrônica de Potência. 2018; 23 (3):1-11.

Chicago/Turabian Style

Renan Landau Paiva De Medeiros; Duaymy Bruno Rodrigues Góes; Florindo Antônio De Carvalho Ayres Junior; Walter Barra Junior; Cleonor Crescêncio Das Neves; Erick Melo Rocha. 2018. "EXPERIMENTAL ASSESSMENT OF A ROBUST CONTROLLER DESIGN VIA INTERVAL ANALYSIS APPLIED TO A DC-DC BUCK CONVERTER." Eletrônica de Potência 23, no. 3: 1-11.

Proceedings article
Published: 01 May 2018 in 2018 Simposio Brasileiro de Sistemas Eletricos (SBSE)
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This work presents a novel framework for detection and isolation of single-phase low-impedance faults in electric power systems. The proposed methodology employs spectral analysis based on Fourier transform for fault features extraction. The extracted features are used as input of artificial neural networks that aims to identify the occurrence (detection) and the location (isolation) of each fault. The proposed framework is validated through experiments that are performed using the IEEE 14 Bus benchmark. The experiments shows that the proposed methodology is efficient in detecting at least 80% of simulated faults, presenting good accuracy and generalization ability. The experiments also allow to relate the efficiency of the proposed methodology to the fault duration and RNA parameters (number of neurons).

ACS Style

Anderson P. Alves; Kenny V. Santos; Luiz Eduardo Sales e Silva; Renan L. P. Medeiros; Iury V. Bessa. Single-phase fault detection in balanced 14 bus system using artificial neural networks. 2018 Simposio Brasileiro de Sistemas Eletricos (SBSE) 2018, 1 -6.

AMA Style

Anderson P. Alves, Kenny V. Santos, Luiz Eduardo Sales e Silva, Renan L. P. Medeiros, Iury V. Bessa. Single-phase fault detection in balanced 14 bus system using artificial neural networks. 2018 Simposio Brasileiro de Sistemas Eletricos (SBSE). 2018; ():1-6.

Chicago/Turabian Style

Anderson P. Alves; Kenny V. Santos; Luiz Eduardo Sales e Silva; Renan L. P. Medeiros; Iury V. Bessa. 2018. "Single-phase fault detection in balanced 14 bus system using artificial neural networks." 2018 Simposio Brasileiro de Sistemas Eletricos (SBSE) , no. : 1-6.

Journal article
Published: 01 February 2018 in ISA Transactions
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This paper describes a novel robust decentralized control design methodology for a single inductor multiple output (SIMO) DC-DC converter. Based on a nominal multiple input multiple output (MIMO) plant model and performance requirements, a pairing input-output analysis is performed to select the suitable input to control each output aiming to attenuate the loop coupling. Thus, the plant uncertainty limits are selected and expressed in interval form with parameter values of the plant model. A single inductor dual output (SIDO) DC-DC buck converter board is developed for experimental tests. The experimental results show that the proposed methodology can maintain a desirable performance even in the presence of parametric uncertainties. Furthermore, the performance indexes calculated from experimental data show that the proposed methodology outperforms classical MIMO control techniques.

ACS Style

Renan Landau Paiva De Medeiros; Walter Barra; Iury Valente De Bessa; Joao Edgar Chaves Filho; Florindo Antonio De Cavalho Ayres; Cleonor Crescêncio Das Neves. Robust decentralized controller for minimizing coupling effect in single inductor multiple output DC-DC converter operating in continuous conduction mode. ISA Transactions 2018, 73, 112 -129.

AMA Style

Renan Landau Paiva De Medeiros, Walter Barra, Iury Valente De Bessa, Joao Edgar Chaves Filho, Florindo Antonio De Cavalho Ayres, Cleonor Crescêncio Das Neves. Robust decentralized controller for minimizing coupling effect in single inductor multiple output DC-DC converter operating in continuous conduction mode. ISA Transactions. 2018; 73 ():112-129.

Chicago/Turabian Style

Renan Landau Paiva De Medeiros; Walter Barra; Iury Valente De Bessa; Joao Edgar Chaves Filho; Florindo Antonio De Cavalho Ayres; Cleonor Crescêncio Das Neves. 2018. "Robust decentralized controller for minimizing coupling effect in single inductor multiple output DC-DC converter operating in continuous conduction mode." ISA Transactions 73, no. : 112-129.

Conference paper
Published: 01 January 2018 in Proceedings XXII Congresso Brasileiro de Automática
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ACS Style

Maickson Patrick Viana Leão; Fernando José Costa Junior; Renan Landau Paiva De Medeiros; Walter Barra Junior; Florindo Antonio De Carvalho Ayres Júnior; Erick Melo Rocha; Maysa De Sousa Alves; Kevin Eduardo Lucas Marcillo. INVESTIGAÇÃO EXPERIMENTAL DE TÉCNICAS DE CONTROLE DIGITAL APLICADAS EM UM CONVERSOR NA TOPOLOGIA BUCK. Proceedings XXII Congresso Brasileiro de Automática 2018, 1 .

AMA Style

Maickson Patrick Viana Leão, Fernando José Costa Junior, Renan Landau Paiva De Medeiros, Walter Barra Junior, Florindo Antonio De Carvalho Ayres Júnior, Erick Melo Rocha, Maysa De Sousa Alves, Kevin Eduardo Lucas Marcillo. INVESTIGAÇÃO EXPERIMENTAL DE TÉCNICAS DE CONTROLE DIGITAL APLICADAS EM UM CONVERSOR NA TOPOLOGIA BUCK. Proceedings XXII Congresso Brasileiro de Automática. 2018; ():1.

Chicago/Turabian Style

Maickson Patrick Viana Leão; Fernando José Costa Junior; Renan Landau Paiva De Medeiros; Walter Barra Junior; Florindo Antonio De Carvalho Ayres Júnior; Erick Melo Rocha; Maysa De Sousa Alves; Kevin Eduardo Lucas Marcillo. 2018. "INVESTIGAÇÃO EXPERIMENTAL DE TÉCNICAS DE CONTROLE DIGITAL APLICADAS EM UM CONVERSOR NA TOPOLOGIA BUCK." Proceedings XXII Congresso Brasileiro de Automática , no. : 1.

Conference paper
Published: 01 January 2018 in Proceedings XXII Congresso Brasileiro de Automática
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ACS Style

Gabriel Alisson Costa Queiroz; Arllem De Oliveira Farias; Rodrigo Farias Araújo; Renan Landau Paiva De Medeiros; Iury Valente De Bessa. Modelagem e Controle por Escalonamento de Ganhos Descentralizado para um Sistema de Três Tanques Acoplados. Proceedings XXII Congresso Brasileiro de Automática 2018, 1 .

AMA Style

Gabriel Alisson Costa Queiroz, Arllem De Oliveira Farias, Rodrigo Farias Araújo, Renan Landau Paiva De Medeiros, Iury Valente De Bessa. Modelagem e Controle por Escalonamento de Ganhos Descentralizado para um Sistema de Três Tanques Acoplados. Proceedings XXII Congresso Brasileiro de Automática. 2018; ():1.

Chicago/Turabian Style

Gabriel Alisson Costa Queiroz; Arllem De Oliveira Farias; Rodrigo Farias Araújo; Renan Landau Paiva De Medeiros; Iury Valente De Bessa. 2018. "Modelagem e Controle por Escalonamento de Ganhos Descentralizado para um Sistema de Três Tanques Acoplados." Proceedings XXII Congresso Brasileiro de Automática , no. : 1.

Conference paper
Published: 01 January 2018 in Proceedings XXII Congresso Brasileiro de Automática
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ACS Style

Kevin Eduardo Lucas Marcillo; Erick Melo Rocha; Walter Barra Junior; David Alejandro Vaca Benavides; Renan Landau Paiva De Medeiros; Maysa Sousa Alves; Maickson Patrick Viana Leão. ROBUST CONTROL FOR DC-DC BUCK CONVERTER UNDER PARAMETRIC UNCERTAINTIES. Proceedings XXII Congresso Brasileiro de Automática 2018, 1 .

AMA Style

Kevin Eduardo Lucas Marcillo, Erick Melo Rocha, Walter Barra Junior, David Alejandro Vaca Benavides, Renan Landau Paiva De Medeiros, Maysa Sousa Alves, Maickson Patrick Viana Leão. ROBUST CONTROL FOR DC-DC BUCK CONVERTER UNDER PARAMETRIC UNCERTAINTIES. Proceedings XXII Congresso Brasileiro de Automática. 2018; ():1.

Chicago/Turabian Style

Kevin Eduardo Lucas Marcillo; Erick Melo Rocha; Walter Barra Junior; David Alejandro Vaca Benavides; Renan Landau Paiva De Medeiros; Maysa Sousa Alves; Maickson Patrick Viana Leão. 2018. "ROBUST CONTROL FOR DC-DC BUCK CONVERTER UNDER PARAMETRIC UNCERTAINTIES." Proceedings XXII Congresso Brasileiro de Automática , no. : 1.