Title :
A single-phase controlled-current PWM rectifier
Author :
Stihi, Omar ; Ooi, Boon-Teck
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
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.<>
Keywords :
electric current control; harmonics; pulse width modulation; rectifiers; voltage control; AC power; DC link; current waveform; low-pass filter; power reversal; single-phase controlled-current PWM rectifier; unity power factor; voltage control; voltage harmonics; voltage regulation feedback loop; Feedback loop; Low pass filters; Power harmonic filters; Power system harmonics; Pulse width modulation; Reactive power; Rectifiers; Space vector pulse width modulation; Testing; Voltage control;
Journal_Title :
Power Electronics, IEEE Transactions on
