Alessandro Batschauer | Universidade do Estado de Santa Catarina (original) (raw)

Papers by Alessandro Batschauer

Research paper thumbnail of A Control Strategy to Smooth Power Ripple of a Single-Stage Bidirectional and Isolated AC-DC Converter for Electric Vehicles Chargers

Electronics

This paper proposes a single-stage AC-DC rectifier with power factor correction (PFC), high-frequ... more This paper proposes a single-stage AC-DC rectifier with power factor correction (PFC), high-frequency isolation and bidirectional power conversion capability for on-board battery charger (OBC) applications. The proposed converter is based on the interleaving technique and the Dual Active Bridge (DAB) operation, applying the phase-shift control to regulate the power flow. In addition to topology, this article presents a control strategy for reducing low-frequency power ripples transferred to the secondary side without any additional component and hence maintaining overall size and cost. The single-phase OBC can interchange active power with the grid to charge batteries while performing grid-to-vehicle (G2V) functionality or transferring energy back to the grid via vehicle-to-grid (V2G) mode. The theoretical analysis of the converter including modulation strategy and feedback control scheme are presented. The proposed topology and control strategy have been verified by experimental re...

Research paper thumbnail of Extension of the operating region of a nine-level asymmetrical flying capacitor inverter

2017 Brazilian Power Electronics Conference (COBEP), 2017

This paper presents methods to extend the operating range of a nine-level asymmetrical flying cap... more This paper presents methods to extend the operating range of a nine-level asymmetrical flying capacitor inverter. The asymmetrical operation is proposed to increase the number of output levels for the same number of semiconductors. A dissipative circuit is analyzed to overcome the converter unbalance problem. The space vector modulation is also verified, replacing the uncontrollable vector by controllable ones. Simulation and experimental results are included to demonstrate the performance of the inverter.

Research paper thumbnail of Analysis and Comparison of SPS, EPS and DPS Modulation Schemes for Dual Active Bridge Converter

2021 Brazilian Power Electronics Conference (COBEP), 2021

The dual active bridge (DAB) converter has received more attention from researches in the last ye... more The dual active bridge (DAB) converter has received more attention from researches in the last years due to it features. Most of papers that propose to study DAB converter, compare its performance by the rms value of the current in the primary of the transformer. This paper introduces this method of analysis and present a comparative study of the performance of single-phase-shift (SPS), extended-phase-shift (EPS) and dual-phase-shift (DPS) modulation schemes applied to the DAB converter, in terms of active and reactive power transfer by the fast Fourier transform (FFT) analysis.

Research paper thumbnail of Acionamento e Controle do Motor Síncrono de Imãs Permanentes para Aplicação no Sistema de Tração de Veículos Elétricos

Proceedings of the 13th Seminar on Power Electronics and Control (SEPOC 2021), 2021

Este artigo apresenta o projeto e simulação de um sistema de acionamento para o motor síncrono de... more Este artigo apresenta o projeto e simulação de um sistema de acionamento para o motor síncrono de imãs permanentes. O trabalho é parte inicial de um projeto de pesquisa que tem como objetivo o desenvolvimento de uma plataforma HIL (Hardware-in-the-Loop) para análise e testes do sistema de tração de veículos elétricos. Nesse contexto, propõe-se a utilização de uma estrutura de controle com múltiplas malhas baseada no controle vetorial para o acionamento do motor, onde o principal objetivo é garantir um bom desempenho do sistema elétrico, que compõe o sistema de tração, frente a variações na referência. O projeto dos controladores é realizado a partir do modelo dinâmico do motor síncrono de imãs permanentes no referencial síncrono da máquina. Resultados de simulação exibem o rastreamento da referência, com e sem carga no eixo do motor.

Research paper thumbnail of Design of Repetitive Controllers Through Sensitivity Function

2018 IEEE 27th International Symposium on Industrial Electronics (ISIE), 2018

Repetitive controllers (RC) represent a good solution for systems having periodic reference or di... more Repetitive controllers (RC) represent a good solution for systems having periodic reference or disturbance signals containing several harmonic components. Although some practical solutions to make RCs stability conditions more flexible, methodologies for tuning these cannot be easily found. This paper presents a design method to tuning RCs, based on the use of sensitivity function together with phase margin as design tools. After presenting the design procedures, they were validated through experimental results.

Research paper thumbnail of Single Phase Ac Power Source With Harmonics

Eletrônica de Potência, Jul 1, 2007

Research paper thumbnail of Evaluation of the hybrid four-level converter employing half-bridge modules for two different modulation schemes

2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2010

A novel hybrid three-phase multilevel converter is proposed for medium-voltage applications. The ... more A novel hybrid three-phase multilevel converter is proposed for medium-voltage applications. The converter employs a conventional three-phase voltage source inverter (VSI) linking series connected half-bridge modules at each phase. With the proposed connection, a large portion of energy can be processed by the VSI without the need for insulation or by employing a single transformer, while smaller power shares are

Research paper thumbnail of Comparison between a hybrid multilevel converter employing half-bridge modules and a hybrid multilevel converter employing H-Bridge modules

XI Brazilian Power Electronics Conference, 2011

ABSTRACT The Hybrid Cascaded Half-Bridge (HC½B) converter is a multilevel circuit topology that i... more ABSTRACT The Hybrid Cascaded Half-Bridge (HC½B) converter is a multilevel circuit topology that is able to replace a Hybrid Cascaded H-Bridge (HCHB) converter regarding voltage vector generation, modularity and other features. However, there is not a complete correspondence between the converters since they present different operation principles. This work presents a comparison between the (HC½B) and the (HCHB). The converters are analyzed in their four-level versions, but the results are valid for other configurations. The comparison comprehends the power semiconductors, the generated voltages, the isolated dc supplies and the dc-link capacitors. It is shown that the main differences are with the dc link capacitors. Thus, these are analyzed in detail and a modeling procedure to design and compare them is proposed.

Research paper thumbnail of Three-phase feeding system for rural electrification

2009 Brazilian Power Electronics Conference, 2009

ABSTRACT This paper shows a three-phase feeding system to rural areas that are supplied by a sing... more ABSTRACT This paper shows a three-phase feeding system to rural areas that are supplied by a single-phase feeder. This proposed system allows the use of three-phase agricultural equipments. The system proposed is formed by two bidirectional three-phase PWM converters, easily found to acquire at local market. The energy processed by single-phase transformer is maximized due the use of the power factor correction technique at the input converter. The output voltages are free of harmonics and allow non-balanced loads. The control strategy and design procedure are presents to both rectifier and inverter stages. Finally, will be present the experimental results of the proposed feeding system.

Research paper thumbnail of Three-Phase Hybrid Multilevel Inverter Based on Half-Bridge Modules

IEEE Transactions on Industrial Electronics, 2012

A novel three-phase hybrid multilevel converter is proposed for medium-voltage applications. The ... more A novel three-phase hybrid multilevel converter is proposed for medium-voltage applications. The converter employs a conventional three-phase voltage source inverter (VSI) linking series connected half-bridge modules at each phase. With the proposed connection, a large portion of energy can be processed by the VSI by employing a single multi-pulse rectifier, while smaller power shares are processed within the half-bridge modules. Thus, the requirements for galvanically insulated dc sources are reduced. Modularity is naturally achieved. A modulation scheme for a four-level version is proposed and analyzed in detail. This scheme allows unidirectional power flow in all dc sources and, consequently, enables diode bridges to be employed in the rectification input stage for unidirectional applications.

Research paper thumbnail of Study Of The Modulation Schemes In The Hybrid Three-phase Multilevel Inverter

Eletrônica de Potência, 2018

This work proposes and analyzes modulation strategies for a hybrid three-phase multilevel inverte... more This work proposes and analyzes modulation strategies for a hybrid three-phase multilevel inverter, which employs two different topologies in a cascade connection, a three-phase Neutral Point Clamped (NPC) converter and single-phase half-bridge converters. Two different modulation schemes are proposed: the hybrid modulation and the space vector modulation. The both modulation schemes can synthesize five voltage levels in the output phase voltage at the hybrid three-phase multilevel inverter with symmetrical dc sources. The modulation schemes operate the three-phase NPC in low-switching frequency and the half-bridge converters in high-switching frequency. Thus, semiconductors with low conduction losses can be used for three-phase NPC, decreasing the semiconductor losses. The hybrid three-phase multilevel inverter structure and modulation schemes are explained in detail and verified by simulation and experimental results.

Research paper thumbnail of Hybrid multilevel converter employing half-bridge modules

2009 Brazilian Power Electronics Conference, 2009

A novel hybrid three-phase multilevel converter is proposed for medium-voltage applications. The ... more A novel hybrid three-phase multilevel converter is proposed for medium-voltage applications. The converter employs a conventional three-phase voltage source inverter (VSI) linking series connected half-bridge modules at each phase. With the proposed connection, a large portion of energy can be processed by the VSI without the need for insulation or by employing a single transformer, while smaller power shares are

Research paper thumbnail of Análise do Conversor Totem Pole para Correção do Fator de Potência utilizando Semicondutores de Nitreto de Gálio (GaN)

Proceedings of the 13th Seminar on Power Electronics and Control (SEPOC 2021), 2021

Neste artigo é apresentada a análise do conversor Totem Pole para correção do fator de potência, ... more Neste artigo é apresentada a análise do conversor Totem Pole para correção do fator de potência, sendo mostradas as etapas de operação, modelagem e controle. Também são discutidas as vantagens do seu uso com semicondutores de potência de Nitreto de Gálio (Gallium Nitride - GaN) e diferenças em relação ao conversor Boost PFC. De modo a validar as análises, são mostradas simulações para uma aplicação de 360W.

Research paper thumbnail of Impact of Capacitor Design Methodology on FC Inverters

This work evaluates two capacitors design methodologies for Flying Capacitors Inverters. The firs... more This work evaluates two capacitors design methodologies for Flying Capacitors Inverters. The first design methodology is developed through analysis of one switching period of the flying capacitor inverter. The second one analyses a complete output period of the inverter using the double Fourier series. Bolt methodologies use of the Phase-Shift Pulse Width Modulation. Experimental and numeric results verify the impacting of the two methodologies design in a five-level flying capacitor inverter.

Research paper thumbnail of Investigation of Voltage Regulation with Active and Reactive Power with Distributed Loads on a Radial Distribution Feeder

This paper addresses the voltage-drop problem in a low-voltage network with distributed loads. A ... more This paper addresses the voltage-drop problem in a low-voltage network with distributed loads. A radial distribution feeder is used to show how voltage drop occurs in such systems. Theoretical analysis shows why traditional reactivepower approaches are not fully effective in resistive grids. Power management is used to coordinate between active and reactive power for proper voltage regulation. The control strategy ensures voltage regulation with reactive and active power under a high R/X ratio and load change conditions. The control method is evaluated in a low-voltage distribution network, and the simulation results validate such method’s effectiveness.

Research paper thumbnail of Capacitor voltage balancing in a 5-L full-bridge flying capacitor inverter

An active control method to balance the flying capacitor's voltage is presented for a single-... more An active control method to balance the flying capacitor's voltage is presented for a single-phase full-bridge flying capacitor inverter. Based on the equations of flying capacitors, an analytical method that represents the natural capacitor's voltage balancing is introduced. In this technique, the duty cycle of the switches is modified to control the voltage of the capacitors using a proportional integrative controller. This method considers the fact that current direction influences the capacitor's voltage balance. The controller generates small differences between the duty cycles of the switches, which change the charge process of the capacitors. Simulation and experimental implementation results show that the control is efficient, maintaining the capacitor's voltage regulated.

Research paper thumbnail of Current Limitation of a Voltage-Controlled Voltage Regulator

Eletrônica de Potência, 2020

Research paper thumbnail of Extension of the operating region of a nine-level asymmetrical flying capacitor inverter

This paper presents methods to extend the operating range of a nine-level asymmetrical flying cap... more This paper presents methods to extend the operating range of a nine-level asymmetrical flying capacitor inverter. The asymmetrical operation is proposed to increase the number of output levels for the same number of semiconductors. A dissipative circuit is analyzed to overcome the converter unbalance problem. The space vector modulation is also verified, replacing the uncontrollable vector by controllable ones. Simulation and experimental results are included to demonstrate the performance of the inverter.

Research paper thumbnail of Inversor multiníveis híbrido trifásico baseado em módulos meia-ponte

Research paper thumbnail of Projeto de reatores eletrônicos para lâmpadas de vapor de sódio de alta pressão de 250w e 400w

... Prof. Enio Valmor Kassick, Dr. _____ René Pastor Torrico Bascopé, Dr. Page 4. ... Aos companh... more ... Prof. Enio Valmor Kassick, Dr. _____ René Pastor Torrico Bascopé, Dr. Page 4. ... Aos companheiros da minha turma de mestrado: Anderson Alves, Anis, Claudenei, Clóvis Petri, Deivis, Denise, Fabiana, Jair, Luiz Cláudio, Mauro Peraça e Victor. ...

Research paper thumbnail of A Control Strategy to Smooth Power Ripple of a Single-Stage Bidirectional and Isolated AC-DC Converter for Electric Vehicles Chargers

Electronics

This paper proposes a single-stage AC-DC rectifier with power factor correction (PFC), high-frequ... more This paper proposes a single-stage AC-DC rectifier with power factor correction (PFC), high-frequency isolation and bidirectional power conversion capability for on-board battery charger (OBC) applications. The proposed converter is based on the interleaving technique and the Dual Active Bridge (DAB) operation, applying the phase-shift control to regulate the power flow. In addition to topology, this article presents a control strategy for reducing low-frequency power ripples transferred to the secondary side without any additional component and hence maintaining overall size and cost. The single-phase OBC can interchange active power with the grid to charge batteries while performing grid-to-vehicle (G2V) functionality or transferring energy back to the grid via vehicle-to-grid (V2G) mode. The theoretical analysis of the converter including modulation strategy and feedback control scheme are presented. The proposed topology and control strategy have been verified by experimental re...

Research paper thumbnail of Extension of the operating region of a nine-level asymmetrical flying capacitor inverter

2017 Brazilian Power Electronics Conference (COBEP), 2017

This paper presents methods to extend the operating range of a nine-level asymmetrical flying cap... more This paper presents methods to extend the operating range of a nine-level asymmetrical flying capacitor inverter. The asymmetrical operation is proposed to increase the number of output levels for the same number of semiconductors. A dissipative circuit is analyzed to overcome the converter unbalance problem. The space vector modulation is also verified, replacing the uncontrollable vector by controllable ones. Simulation and experimental results are included to demonstrate the performance of the inverter.

Research paper thumbnail of Analysis and Comparison of SPS, EPS and DPS Modulation Schemes for Dual Active Bridge Converter

2021 Brazilian Power Electronics Conference (COBEP), 2021

The dual active bridge (DAB) converter has received more attention from researches in the last ye... more The dual active bridge (DAB) converter has received more attention from researches in the last years due to it features. Most of papers that propose to study DAB converter, compare its performance by the rms value of the current in the primary of the transformer. This paper introduces this method of analysis and present a comparative study of the performance of single-phase-shift (SPS), extended-phase-shift (EPS) and dual-phase-shift (DPS) modulation schemes applied to the DAB converter, in terms of active and reactive power transfer by the fast Fourier transform (FFT) analysis.

Research paper thumbnail of Acionamento e Controle do Motor Síncrono de Imãs Permanentes para Aplicação no Sistema de Tração de Veículos Elétricos

Proceedings of the 13th Seminar on Power Electronics and Control (SEPOC 2021), 2021

Este artigo apresenta o projeto e simulação de um sistema de acionamento para o motor síncrono de... more Este artigo apresenta o projeto e simulação de um sistema de acionamento para o motor síncrono de imãs permanentes. O trabalho é parte inicial de um projeto de pesquisa que tem como objetivo o desenvolvimento de uma plataforma HIL (Hardware-in-the-Loop) para análise e testes do sistema de tração de veículos elétricos. Nesse contexto, propõe-se a utilização de uma estrutura de controle com múltiplas malhas baseada no controle vetorial para o acionamento do motor, onde o principal objetivo é garantir um bom desempenho do sistema elétrico, que compõe o sistema de tração, frente a variações na referência. O projeto dos controladores é realizado a partir do modelo dinâmico do motor síncrono de imãs permanentes no referencial síncrono da máquina. Resultados de simulação exibem o rastreamento da referência, com e sem carga no eixo do motor.

Research paper thumbnail of Design of Repetitive Controllers Through Sensitivity Function

2018 IEEE 27th International Symposium on Industrial Electronics (ISIE), 2018

Repetitive controllers (RC) represent a good solution for systems having periodic reference or di... more Repetitive controllers (RC) represent a good solution for systems having periodic reference or disturbance signals containing several harmonic components. Although some practical solutions to make RCs stability conditions more flexible, methodologies for tuning these cannot be easily found. This paper presents a design method to tuning RCs, based on the use of sensitivity function together with phase margin as design tools. After presenting the design procedures, they were validated through experimental results.

Research paper thumbnail of Single Phase Ac Power Source With Harmonics

Eletrônica de Potência, Jul 1, 2007

Research paper thumbnail of Evaluation of the hybrid four-level converter employing half-bridge modules for two different modulation schemes

2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2010

A novel hybrid three-phase multilevel converter is proposed for medium-voltage applications. The ... more A novel hybrid three-phase multilevel converter is proposed for medium-voltage applications. The converter employs a conventional three-phase voltage source inverter (VSI) linking series connected half-bridge modules at each phase. With the proposed connection, a large portion of energy can be processed by the VSI without the need for insulation or by employing a single transformer, while smaller power shares are

Research paper thumbnail of Comparison between a hybrid multilevel converter employing half-bridge modules and a hybrid multilevel converter employing H-Bridge modules

XI Brazilian Power Electronics Conference, 2011

ABSTRACT The Hybrid Cascaded Half-Bridge (HC½B) converter is a multilevel circuit topology that i... more ABSTRACT The Hybrid Cascaded Half-Bridge (HC½B) converter is a multilevel circuit topology that is able to replace a Hybrid Cascaded H-Bridge (HCHB) converter regarding voltage vector generation, modularity and other features. However, there is not a complete correspondence between the converters since they present different operation principles. This work presents a comparison between the (HC½B) and the (HCHB). The converters are analyzed in their four-level versions, but the results are valid for other configurations. The comparison comprehends the power semiconductors, the generated voltages, the isolated dc supplies and the dc-link capacitors. It is shown that the main differences are with the dc link capacitors. Thus, these are analyzed in detail and a modeling procedure to design and compare them is proposed.

Research paper thumbnail of Three-phase feeding system for rural electrification

2009 Brazilian Power Electronics Conference, 2009

ABSTRACT This paper shows a three-phase feeding system to rural areas that are supplied by a sing... more ABSTRACT This paper shows a three-phase feeding system to rural areas that are supplied by a single-phase feeder. This proposed system allows the use of three-phase agricultural equipments. The system proposed is formed by two bidirectional three-phase PWM converters, easily found to acquire at local market. The energy processed by single-phase transformer is maximized due the use of the power factor correction technique at the input converter. The output voltages are free of harmonics and allow non-balanced loads. The control strategy and design procedure are presents to both rectifier and inverter stages. Finally, will be present the experimental results of the proposed feeding system.

Research paper thumbnail of Three-Phase Hybrid Multilevel Inverter Based on Half-Bridge Modules

IEEE Transactions on Industrial Electronics, 2012

A novel three-phase hybrid multilevel converter is proposed for medium-voltage applications. The ... more A novel three-phase hybrid multilevel converter is proposed for medium-voltage applications. The converter employs a conventional three-phase voltage source inverter (VSI) linking series connected half-bridge modules at each phase. With the proposed connection, a large portion of energy can be processed by the VSI by employing a single multi-pulse rectifier, while smaller power shares are processed within the half-bridge modules. Thus, the requirements for galvanically insulated dc sources are reduced. Modularity is naturally achieved. A modulation scheme for a four-level version is proposed and analyzed in detail. This scheme allows unidirectional power flow in all dc sources and, consequently, enables diode bridges to be employed in the rectification input stage for unidirectional applications.

Research paper thumbnail of Study Of The Modulation Schemes In The Hybrid Three-phase Multilevel Inverter

Eletrônica de Potência, 2018

This work proposes and analyzes modulation strategies for a hybrid three-phase multilevel inverte... more This work proposes and analyzes modulation strategies for a hybrid three-phase multilevel inverter, which employs two different topologies in a cascade connection, a three-phase Neutral Point Clamped (NPC) converter and single-phase half-bridge converters. Two different modulation schemes are proposed: the hybrid modulation and the space vector modulation. The both modulation schemes can synthesize five voltage levels in the output phase voltage at the hybrid three-phase multilevel inverter with symmetrical dc sources. The modulation schemes operate the three-phase NPC in low-switching frequency and the half-bridge converters in high-switching frequency. Thus, semiconductors with low conduction losses can be used for three-phase NPC, decreasing the semiconductor losses. The hybrid three-phase multilevel inverter structure and modulation schemes are explained in detail and verified by simulation and experimental results.

Research paper thumbnail of Hybrid multilevel converter employing half-bridge modules

2009 Brazilian Power Electronics Conference, 2009

A novel hybrid three-phase multilevel converter is proposed for medium-voltage applications. The ... more A novel hybrid three-phase multilevel converter is proposed for medium-voltage applications. The converter employs a conventional three-phase voltage source inverter (VSI) linking series connected half-bridge modules at each phase. With the proposed connection, a large portion of energy can be processed by the VSI without the need for insulation or by employing a single transformer, while smaller power shares are

Research paper thumbnail of Análise do Conversor Totem Pole para Correção do Fator de Potência utilizando Semicondutores de Nitreto de Gálio (GaN)

Proceedings of the 13th Seminar on Power Electronics and Control (SEPOC 2021), 2021

Neste artigo é apresentada a análise do conversor Totem Pole para correção do fator de potência, ... more Neste artigo é apresentada a análise do conversor Totem Pole para correção do fator de potência, sendo mostradas as etapas de operação, modelagem e controle. Também são discutidas as vantagens do seu uso com semicondutores de potência de Nitreto de Gálio (Gallium Nitride - GaN) e diferenças em relação ao conversor Boost PFC. De modo a validar as análises, são mostradas simulações para uma aplicação de 360W.

Research paper thumbnail of Impact of Capacitor Design Methodology on FC Inverters

This work evaluates two capacitors design methodologies for Flying Capacitors Inverters. The firs... more This work evaluates two capacitors design methodologies for Flying Capacitors Inverters. The first design methodology is developed through analysis of one switching period of the flying capacitor inverter. The second one analyses a complete output period of the inverter using the double Fourier series. Bolt methodologies use of the Phase-Shift Pulse Width Modulation. Experimental and numeric results verify the impacting of the two methodologies design in a five-level flying capacitor inverter.

Research paper thumbnail of Investigation of Voltage Regulation with Active and Reactive Power with Distributed Loads on a Radial Distribution Feeder

This paper addresses the voltage-drop problem in a low-voltage network with distributed loads. A ... more This paper addresses the voltage-drop problem in a low-voltage network with distributed loads. A radial distribution feeder is used to show how voltage drop occurs in such systems. Theoretical analysis shows why traditional reactivepower approaches are not fully effective in resistive grids. Power management is used to coordinate between active and reactive power for proper voltage regulation. The control strategy ensures voltage regulation with reactive and active power under a high R/X ratio and load change conditions. The control method is evaluated in a low-voltage distribution network, and the simulation results validate such method’s effectiveness.

Research paper thumbnail of Capacitor voltage balancing in a 5-L full-bridge flying capacitor inverter

An active control method to balance the flying capacitor's voltage is presented for a single-... more An active control method to balance the flying capacitor's voltage is presented for a single-phase full-bridge flying capacitor inverter. Based on the equations of flying capacitors, an analytical method that represents the natural capacitor's voltage balancing is introduced. In this technique, the duty cycle of the switches is modified to control the voltage of the capacitors using a proportional integrative controller. This method considers the fact that current direction influences the capacitor's voltage balance. The controller generates small differences between the duty cycles of the switches, which change the charge process of the capacitors. Simulation and experimental implementation results show that the control is efficient, maintaining the capacitor's voltage regulated.

Research paper thumbnail of Current Limitation of a Voltage-Controlled Voltage Regulator

Eletrônica de Potência, 2020

Research paper thumbnail of Extension of the operating region of a nine-level asymmetrical flying capacitor inverter

This paper presents methods to extend the operating range of a nine-level asymmetrical flying cap... more This paper presents methods to extend the operating range of a nine-level asymmetrical flying capacitor inverter. The asymmetrical operation is proposed to increase the number of output levels for the same number of semiconductors. A dissipative circuit is analyzed to overcome the converter unbalance problem. The space vector modulation is also verified, replacing the uncontrollable vector by controllable ones. Simulation and experimental results are included to demonstrate the performance of the inverter.

Research paper thumbnail of Inversor multiníveis híbrido trifásico baseado em módulos meia-ponte

Research paper thumbnail of Projeto de reatores eletrônicos para lâmpadas de vapor de sódio de alta pressão de 250w e 400w

... Prof. Enio Valmor Kassick, Dr. _____ René Pastor Torrico Bascopé, Dr. Page 4. ... Aos companh... more ... Prof. Enio Valmor Kassick, Dr. _____ René Pastor Torrico Bascopé, Dr. Page 4. ... Aos companheiros da minha turma de mestrado: Anderson Alves, Anis, Claudenei, Clóvis Petri, Deivis, Denise, Fabiana, Jair, Luiz Cláudio, Mauro Peraça e Victor. ...