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Hui Huang - One of the best experts on this subject based on the ideXlab platform.

  • maximizing Instantaneous Active Power capability for pwm rectifier under unbalanced grid voltage dips considering the limitation of phase current
    IEEE Transactions on Industrial Electronics, 2016
    Co-Authors: Weidong Jiang, Yongsheng Wang, Jinping Wang, Lei Wang, Hui Huang
    Abstract:

    For the case of unbalanced grid voltages, Active Power of pulse width modulation (PWM) rectifier is reduced due to the current limitation of Power switches. Under unbalanced grid voltages, two existing control methods for the PWM rectifier are widely adopted, one for Instantaneous Active Power control, and the other for balanced positive sequence current control. To maximize the PWM rectifier Instantaneous Active Power capability and minimize Active Power oscillations during voltage dips, a control method combining balanced positive sequence and Instantaneous Active Power control is proposed. The limitations of these two control methods are given, and the fluctuations on Active and reActive Power using the proposed control method are discussed in detail in this paper. The analysis in this paper is based on p.u. system, and some conclusions are drawn. Corroboration of the expected features of the proposed control method is carried out by means of experiments.

  • hybrid Instantaneous Active Power control for pwm rectifier under grid voltage dips considering the limitation of phase current
    International Power Electronics and Motion Control Conference, 2016
    Co-Authors: Yongsheng Wang, Weidong Jiang, Lei Wang, Hui Huang
    Abstract:

    When the grid voltage dips, the Power handled by the PWM rectifier must be reduced. This paper analyses the mathematical model of a grid-connected inverter under unbalanced grid voltages based on the Instantaneous Power theory. The two control objectives of the PWM rectifier are introduced, one for symmetrical three-phase grid currents and the other for suppressing the fluctuation on the Active Power. Considering the limitation of phase current, an improved control strategy which is a hybrid of these two control objectives, is proposed to increase the average Active Power and decrease the fluctuation on the Active Power. The analysis in this paper is carried out in the P.u. system, so some simplified conclusions can be drawn. Corroboration of the expected features of the proposed control strategy is carried out by means of experiments.

Weidong Jiang - One of the best experts on this subject based on the ideXlab platform.

  • maximizing Instantaneous Active Power capability for pwm rectifier under unbalanced grid voltage dips considering the limitation of phase current
    IEEE Transactions on Industrial Electronics, 2016
    Co-Authors: Weidong Jiang, Yongsheng Wang, Jinping Wang, Lei Wang, Hui Huang
    Abstract:

    For the case of unbalanced grid voltages, Active Power of pulse width modulation (PWM) rectifier is reduced due to the current limitation of Power switches. Under unbalanced grid voltages, two existing control methods for the PWM rectifier are widely adopted, one for Instantaneous Active Power control, and the other for balanced positive sequence current control. To maximize the PWM rectifier Instantaneous Active Power capability and minimize Active Power oscillations during voltage dips, a control method combining balanced positive sequence and Instantaneous Active Power control is proposed. The limitations of these two control methods are given, and the fluctuations on Active and reActive Power using the proposed control method are discussed in detail in this paper. The analysis in this paper is based on p.u. system, and some conclusions are drawn. Corroboration of the expected features of the proposed control method is carried out by means of experiments.

  • hybrid Instantaneous Active Power control for pwm rectifier under grid voltage dips considering the limitation of phase current
    International Power Electronics and Motion Control Conference, 2016
    Co-Authors: Yongsheng Wang, Weidong Jiang, Lei Wang, Hui Huang
    Abstract:

    When the grid voltage dips, the Power handled by the PWM rectifier must be reduced. This paper analyses the mathematical model of a grid-connected inverter under unbalanced grid voltages based on the Instantaneous Power theory. The two control objectives of the PWM rectifier are introduced, one for symmetrical three-phase grid currents and the other for suppressing the fluctuation on the Active Power. Considering the limitation of phase current, an improved control strategy which is a hybrid of these two control objectives, is proposed to increase the average Active Power and decrease the fluctuation on the Active Power. The analysis in this paper is carried out in the P.u. system, so some simplified conclusions can be drawn. Corroboration of the expected features of the proposed control strategy is carried out by means of experiments.

Yongsheng Wang - One of the best experts on this subject based on the ideXlab platform.

  • maximizing Instantaneous Active Power capability for pwm rectifier under unbalanced grid voltage dips considering the limitation of phase current
    IEEE Transactions on Industrial Electronics, 2016
    Co-Authors: Weidong Jiang, Yongsheng Wang, Jinping Wang, Lei Wang, Hui Huang
    Abstract:

    For the case of unbalanced grid voltages, Active Power of pulse width modulation (PWM) rectifier is reduced due to the current limitation of Power switches. Under unbalanced grid voltages, two existing control methods for the PWM rectifier are widely adopted, one for Instantaneous Active Power control, and the other for balanced positive sequence current control. To maximize the PWM rectifier Instantaneous Active Power capability and minimize Active Power oscillations during voltage dips, a control method combining balanced positive sequence and Instantaneous Active Power control is proposed. The limitations of these two control methods are given, and the fluctuations on Active and reActive Power using the proposed control method are discussed in detail in this paper. The analysis in this paper is based on p.u. system, and some conclusions are drawn. Corroboration of the expected features of the proposed control method is carried out by means of experiments.

  • hybrid Instantaneous Active Power control for pwm rectifier under grid voltage dips considering the limitation of phase current
    International Power Electronics and Motion Control Conference, 2016
    Co-Authors: Yongsheng Wang, Weidong Jiang, Lei Wang, Hui Huang
    Abstract:

    When the grid voltage dips, the Power handled by the PWM rectifier must be reduced. This paper analyses the mathematical model of a grid-connected inverter under unbalanced grid voltages based on the Instantaneous Power theory. The two control objectives of the PWM rectifier are introduced, one for symmetrical three-phase grid currents and the other for suppressing the fluctuation on the Active Power. Considering the limitation of phase current, an improved control strategy which is a hybrid of these two control objectives, is proposed to increase the average Active Power and decrease the fluctuation on the Active Power. The analysis in this paper is carried out in the P.u. system, so some simplified conclusions can be drawn. Corroboration of the expected features of the proposed control strategy is carried out by means of experiments.

Lei Wang - One of the best experts on this subject based on the ideXlab platform.

  • maximizing Instantaneous Active Power capability for pwm rectifier under unbalanced grid voltage dips considering the limitation of phase current
    IEEE Transactions on Industrial Electronics, 2016
    Co-Authors: Weidong Jiang, Yongsheng Wang, Jinping Wang, Lei Wang, Hui Huang
    Abstract:

    For the case of unbalanced grid voltages, Active Power of pulse width modulation (PWM) rectifier is reduced due to the current limitation of Power switches. Under unbalanced grid voltages, two existing control methods for the PWM rectifier are widely adopted, one for Instantaneous Active Power control, and the other for balanced positive sequence current control. To maximize the PWM rectifier Instantaneous Active Power capability and minimize Active Power oscillations during voltage dips, a control method combining balanced positive sequence and Instantaneous Active Power control is proposed. The limitations of these two control methods are given, and the fluctuations on Active and reActive Power using the proposed control method are discussed in detail in this paper. The analysis in this paper is based on p.u. system, and some conclusions are drawn. Corroboration of the expected features of the proposed control method is carried out by means of experiments.

  • hybrid Instantaneous Active Power control for pwm rectifier under grid voltage dips considering the limitation of phase current
    International Power Electronics and Motion Control Conference, 2016
    Co-Authors: Yongsheng Wang, Weidong Jiang, Lei Wang, Hui Huang
    Abstract:

    When the grid voltage dips, the Power handled by the PWM rectifier must be reduced. This paper analyses the mathematical model of a grid-connected inverter under unbalanced grid voltages based on the Instantaneous Power theory. The two control objectives of the PWM rectifier are introduced, one for symmetrical three-phase grid currents and the other for suppressing the fluctuation on the Active Power. Considering the limitation of phase current, an improved control strategy which is a hybrid of these two control objectives, is proposed to increase the average Active Power and decrease the fluctuation on the Active Power. The analysis in this paper is carried out in the P.u. system, so some simplified conclusions can be drawn. Corroboration of the expected features of the proposed control strategy is carried out by means of experiments.

Alberto Tenconi - One of the best experts on this subject based on the ideXlab platform.

  • new stationary frame control scheme for three phase pwm rectifiers under unbalanced voltage dips conditions
    IEEE Transactions on Industry Applications, 2010
    Co-Authors: D Roiu, R Bojoi, L R Limongi, Alberto Tenconi
    Abstract:

    A new stationary frame control scheme for three-phase pulsewidth-modulation (PWM) rectifiers operating under unbalanced voltage dips conditions is proposed in this paper. The proposed control scheme regulates the Instantaneous Active Power at the converter poles to minimize the harmonics of the input currents and the output voltage ripple. This paper's novelty is the development of a new current-reference generator implemented directly in stationary reference frame. This allows using proportional sinusoidal signal integrator (P-SSI) controllers for simultaneous compensation of both positive and negative current sequence components. No phase-locked loop (PLL) strategies and coordinate transformations are needed for the proposed current-reference generator. Experimental results are presented for a 20-kV A alternative current (ac)/direct current (dc) converter prototype to demonstrate the effectiveness of the proposed control scheme. A comparison with two other existing control techniques is also performed. Fast dynamic performance with small dc-link voltage ripple and input sinusoidal currents are obtained with this control scheme, even under severe voltage dips operating conditions.

  • new stationary frame control scheme for three phase pwm rectifiers under unbalanced voltage dips conditions
    IEEE Industry Applications Society Annual Meeting, 2008
    Co-Authors: D Roiu, R Bojoi, L R Limongi, Alberto Tenconi
    Abstract:

    A new stationary frame control scheme for three-phase pulse width modulation (PWM) rectifiers operating under unbalanced voltage dips conditions is proposed in this paper. The proposed control scheme regulates the Instantaneous Active Power at the converter poles to minimize the harmonics of the input currents and the output voltage. The paper novelty is the development of a new current-reference calculation implemented directly in stationary reference frame. This allows using proportional - sinusoidal signal integrators (P-SSI) controllers for simultaneous compensation of both positive and negative current sequence components. No phase locked loop (PLL) strategies and coordinate transformations are needed. A comparison with two other existing control techniques is also performed. Experimental results are presented for a 20 kVA AC/DC converter prototype to demonstrate the effectiveness of the proposed control scheme. Fast dynamic performance with small DC-link voltage ripple and input sinusoidal currents are obtained with this control scheme even under severe voltage dips operating conditions.