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Ivo Barbi - One of the best experts on this subject based on the ideXlab platform.

  • Unity Power Factor Isolated Three-Phase Rectifier With Split DC-Bus Based on the Scott Transformer
    IEEE Transactions on Power Electronics, 2008
    Co-Authors: A.a. Badin, Ivo Barbi
    Abstract:

    In this work, the Three-Phase Rectifier with a new connection is presented. The use of the Scott transformer makes a split DC-bus voltage possible and the Rectifier operates with unity power factor. Using only two active switches, the Rectifier is able to generate symmetrical currents in the line and a balanced split DC-bus output voltage, which is necessary in several applications. Pulse width modulation and instantaneous average current control are used. There are two voltage controls that regulate the output voltage and the split DC-bus voltage. Complete simulation results under closed loop operation are given, as well as results of an experimental setup.

  • Simplified Control Technique for Three-Phase Rectifier PFC Based on the Scott Transformer
    2006 IEEE International Symposium on Industrial Electronics, 2006
    Co-Authors: A.a. Badin, Ivo Barbi
    Abstract:

    In this work, a new simplified control is proposed for Three-Phase Rectifier based on the Scott Transformer with split DC bus. The control technique loop is independent for each boost that integrates the Rectifier. Therefore, it makes possible with two single-phase boosts to obtain a unity power factor Three-Phase Rectifier. This Rectifier is particularly attractive when galvanic isolation and minimum number of active switches are required. It is used PWM with instantaneous average current control. Besides it has two voltage control loops that regulate the output voltage and the split DC bus. In this paper will be presented analysis, simulation and experimental results for the three phase Rectifier and the control technique proposed.

  • A NEW BIDIRECTIONAL HYBRID Three-Phase Rectifier
    2005
    Co-Authors: Carlos Henrique Illa Font, Ivo Barbi
    Abstract:

    This paper presents a new bidirectional hybrid Three-Phase Rectifier suitable for high power applications. The Rectifier employs a Three-Phase diode bridge Rectifier and a Boost-type Three-Phase PWM Rectifier. The proposed Rectifier is capable of providing sinusoidal input currents with low harmonic distortion and DC output voltage regulation. The Rectifier topology generation, the principle of operation, control scheme and simulation results are described in the paper.

  • An improved high-power factor and low-cost Three-Phase Rectifier
    IEEE Transactions on Industry Applications, 1997
    Co-Authors: E.l.m. Mehl, Ivo Barbi
    Abstract:

    A new method to improve the power factor of Three-Phase Rectifiers is introduced in this paper. The main features of the proposed circuit are low cost, small size, high efficiency, and simplicity. The power factor improvement is achieved with three bi-directional active switches rated at a small fraction of the total processed power, and gated at the line frequency. The principle of operation and design procedure, with a practical example, are also presented. The theoretical analysis was validated with experimental results from a laboratory prototype rated at 7.4 kW and connected to the 220-V 60-Hz AC system. The same circuit was also used in another prototype rated at 12 kW, with similar results.

  • Isolated Three-Phase Rectifier with high power factor using the zeta converter in continuous conduction mode
    Proceedings of Power and Energy Systems in Converging Markets, 1
    Co-Authors: Denizar Cruz Martins, M.m. Casaro, Ivo Barbi
    Abstract:

    This paper presents the analysis of an isolated Three-Phase Rectifier with high power factor using a Zeta converter operating in the continuous conduction mode (CCM). The structure is particularly simple and robust. Its main features are: one power processing stage; lower harmonic distortion in the current; and natural isolation. Its principle of operation, design procedure and experimental results are presented.

A.a. Badin - One of the best experts on this subject based on the ideXlab platform.

  • Unity Power Factor Isolated Three-Phase Rectifier With Split DC-Bus Based on the Scott Transformer
    IEEE Transactions on Power Electronics, 2008
    Co-Authors: A.a. Badin, Ivo Barbi
    Abstract:

    In this work, the Three-Phase Rectifier with a new connection is presented. The use of the Scott transformer makes a split DC-bus voltage possible and the Rectifier operates with unity power factor. Using only two active switches, the Rectifier is able to generate symmetrical currents in the line and a balanced split DC-bus output voltage, which is necessary in several applications. Pulse width modulation and instantaneous average current control are used. There are two voltage controls that regulate the output voltage and the split DC-bus voltage. Complete simulation results under closed loop operation are given, as well as results of an experimental setup.

  • Simplified Control Technique for Three-Phase Rectifier PFC Based on the Scott Transformer
    2006 IEEE International Symposium on Industrial Electronics, 2006
    Co-Authors: A.a. Badin, Ivo Barbi
    Abstract:

    In this work, a new simplified control is proposed for Three-Phase Rectifier based on the Scott Transformer with split DC bus. The control technique loop is independent for each boost that integrates the Rectifier. Therefore, it makes possible with two single-phase boosts to obtain a unity power factor Three-Phase Rectifier. This Rectifier is particularly attractive when galvanic isolation and minimum number of active switches are required. It is used PWM with instantaneous average current control. Besides it has two voltage control loops that regulate the output voltage and the split DC bus. In this paper will be presented analysis, simulation and experimental results for the three phase Rectifier and the control technique proposed.

  • Unity power factor isolated Three-Phase Rectifier with neutral point based on the Scott transformer
    Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition 2006. APEC '06., 1
    Co-Authors: A.a. Badin, Ivo Barbi
    Abstract:

    In this work, the Three-Phase Rectifier with a new connection is presented. Based on the Scott transformer, it makes possible a neutral point voltage and it operates with unity power factor. Using only two active switches, it is able to generate symmetrical currents in the line and output voltage with balanced neutral point, which is necessary in several applications. It is used PWM, with instantaneous average current control. Besides it has two voltage controls that regulate the output voltage and the neutral point voltage. Complete simulation results with closed loop operation are given, as well as results of an experimental verification.

I. Barbi - One of the best experts on this subject based on the ideXlab platform.

  • A new high power factor bidirectional hybrid Three-Phase Rectifier
    Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition 2006. APEC '06., 1
    Co-Authors: Carlos Henrique Illa Font, I. Barbi
    Abstract:

    This paper presents a new bidirectional hybrid Three-Phase Rectifier suitable for medium and high power applications. The Rectifier employs a Three-Phase diode bridge Rectifier and a boost-type Three-Phase PWM Rectifier. The proposed Rectifier is capable of providing sinusoidal input currents with low harmonic distortion and DC output voltage regulation. The Rectifier topology generation, the principle of operation, control scheme and simulation results are described in the paper.

  • Practical aspects of the unity power factor isolated Three-Phase Rectifier based on the Scott transformer
    Twentieth Annual IEEE Applied Power Electronics Conference and Exposition 2005. APEC 2005., 1
    Co-Authors: S.k.t. Miller, I. Barbi
    Abstract:

    In this paper, the unity power factor isolated Three-Phase Rectifier based on the Scott transformer is analyzed. This topology presents a Scott transformer for galvanic isolation and uses instantaneous average current control. Models for proper design of the current and voltage loops are obtained by two methods. Using these models, reference current phase-shifting is analyzed and implemented. The use of a common voltage control loop for both boost PFCs, in order to equally distribute the total power between them, is discussed. A design procedure for the boost inductors and the Scott transformer, based on switching functions and the /spl alpha//spl beta/ transformation, is presented. Simulation and experimental results of a 12 kW laboratory prototype are presented and compared.

Haitham Abu-rub - One of the best experts on this subject based on the ideXlab platform.

  • Robust sliding mode control for Three-Phase Rectifier supplied by non-ideal voltage
    Control Engineering Practice, 2018
    Co-Authors: M. A. Fnaiech, Mohamed Trabelsi, Shady Khalil, Majdi Mansouri, Hazem Nounou, Haitham Abu-rub
    Abstract:

    Abstract This paper proposes a linear feedback structure of sliding mode control for a Three-Phase Rectifier fed by a non-ideal supply voltage. The aim of the proposed technique is to achieve power flow with unity power factor even under distorted and/or unbalanced grid voltage condition. The performance of the proposed sliding mode control strategy is investigated and compared with the traditional PI control technique. Simulation, and implementation studies are conducted to prove that the proposed scheme has better performances than traditional solutions under different operating conditions. The investigation is aimed to show proposed system robustness against grid disturbances.

S.k.t. Miller - One of the best experts on this subject based on the ideXlab platform.

  • Practical aspects of the unity power factor isolated Three-Phase Rectifier based on the Scott transformer
    Twentieth Annual IEEE Applied Power Electronics Conference and Exposition 2005. APEC 2005., 1
    Co-Authors: S.k.t. Miller, I. Barbi
    Abstract:

    In this paper, the unity power factor isolated Three-Phase Rectifier based on the Scott transformer is analyzed. This topology presents a Scott transformer for galvanic isolation and uses instantaneous average current control. Models for proper design of the current and voltage loops are obtained by two methods. Using these models, reference current phase-shifting is analyzed and implemented. The use of a common voltage control loop for both boost PFCs, in order to equally distribute the total power between them, is discussed. A design procedure for the boost inductors and the Scott transformer, based on switching functions and the /spl alpha//spl beta/ transformation, is presented. Simulation and experimental results of a 12 kW laboratory prototype are presented and compared.