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A Comparative Evaluation and Design of Input Current Waveshaping Methods for Rectifier
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This paper presents a comparative evaluation of passive current waveshapingmethods for single-phase rectifier. The simulation results show that the newmethod can further lower the input current components and THDi of a singlephasediode rectifier as compared with the three passive current waveshapingmethods by P. D. Ziogas [5], Ji Yanchao [4] and H. A. Kazem [6]. The relevantinput current and voltage waveforms, the input current total harmonic distortionand the input power factor value are derived from the computer simulation ortheoretical analysis. A design example is provided and simulation results havebeen verified on 500 mW experimental models.
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A growing number of current waveshaping methods applied to single-phase rectifier are now available including active and passive methods and selection of the best-suited method for a particular case can be a complicated decision making process. A classification of the various available waveshaping methods is presented in this paper aimed at presenting a review of current waveshaping methods to researchers, designers and engineers dealing with single-phase rectifiers.
This paper presents an improved passive input current waveshaping method for single-phase rectifiers (improved method-2). The simulation results show that the improved method can further lower the input current components and THDi of a single-phase diode rectifier as compared with the passive current waveshaping method by Ji Yanchao (improved method-1) and by P. D. Ziogas (novel method). The relevant input current and voltage waveforms, the input current total harmonic distortion and the input power factor value are derived from the computer simulation or theoretical analysis. A design example is provided and simulation results have been verified on 500 mW experimental models.
This paper presents an improved passive input current waveshaping
method for single-phase diode rectifiers (improved method). The
simulation results show that the improved method can further lower the
input current harmonic components and improve the input power factor of
a single-phase diode rectifier as compared with the novel passive input
current waveshaping method for single-phase diode rectifiers proposed by
P.D. Ziogas (novel method). The relevant input current and voltage
waveforms, the input current total harmonic distortion and the input
power factor value are derived from the computer simulation or
theoretical analysis. A design example is provided and the simulation
results have been verified on a 5 kW experimental models
The analysis and test results are given for an experimental
single-phase controlled-current PWM (pulse-width-modulated) rectifier
that operates at unity power factor with near sinusoidal current
waveform and that has power reversal capability. The
twice-line-frequency AC power is identified as a source of voltage
harmonics in the DC link. The harmonics enter into the voltage
regulation feedback loop to distort the AC current waveform. These
undesirable harmonics can be removed by a low-pass filter. It is noted
that the overall design must address the possibility of instability due
to the low-pass filter in the feedback path
A novel passive waveshaping method for single-phase diode
rectifiers is presented. It is shown that application of the proposed
method maintains high-input power factor, lowers rectifier current
stresses, and lowers the volt-ampere (VA) rating of the associated
reactive components as compared to the standard diode rectifier.
Relevant input and output current waveforms, component ratings, and
power factor values are derived. Different modes of operation are
discussed as a means of obtaining high performance. Key predictions,
such as input/output waveforms and associated harmonic spectra, have
been verified experimentally on a 1 kVA laboratory prototype unit
Simple and Advanced Models for Calculating Single-Phase Diode Rectifier Line-Side Harmonics
- A Hussein
- Kazem
- A Abdulhakeem
- Ali S Alblushi
- Aljabri
- H Khmais
- Alsaidi
Hussein A. Kazem, Abdulhakeem A. Alblushi, Ali. S. Aljabri & Khmais H. Alsaidi, "Simple and Advanced Models for Calculating Single-Phase Diode Rectifier Line-Side Harmonics", Transactions on Engineering, Computing and Technology, Vol.9, November 2005, pp. 179-183, ISBN 975-98458-8-1.
An Improved Method of Passive Input Current Waveshaping for Single-Phase Rectifier 1-4. Current mSec Amps 0.0 0.1 0.2 0.3 0.4 -0.1 -0.2 -0.3 -0.4 5.95 10
- A Hussein
- Kazem
Hussein A. Kazem, "An Improved Method of Passive Input Current Waveshaping for Single-Phase Rectifier", 5 th International Conference CPE 2007, May, 2007, Poland, pp. 1-4. Current mSec Amps 0.0 0.1 0.2 0.3 0.4 -0.1 -0.2 -0.3 -0.4 5.95 10.12 14.29 18.46 22.63 26.80