An optimized set-up for controlling PWM rectifiers is proposed in this paper. In particular, the control part is based on a predictive estimation algorithm which guarantees the imposed value of the dc link output voltage and, at the same time, a unity power factor behavior at the mains. The modulation part consists on a digital space vector modulator, which eliminates the drop voltage due to the dead time effect and, also, avoids the current zero clamping phenomenon. The results achieved by means of an experiment confirm that improvements on the AC source current waveforms and controllable dc bus voltage are achieved with the proposed system.

Optimized Modulation for PWM Rectifiers

ATTAIANESE C;
2002

Abstract

An optimized set-up for controlling PWM rectifiers is proposed in this paper. In particular, the control part is based on a predictive estimation algorithm which guarantees the imposed value of the dc link output voltage and, at the same time, a unity power factor behavior at the mains. The modulation part consists on a digital space vector modulator, which eliminates the drop voltage due to the dead time effect and, also, avoids the current zero clamping phenomenon. The results achieved by means of an experiment confirm that improvements on the AC source current waveforms and controllable dc bus voltage are achieved with the proposed system.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11588/743263
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