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A Predictive Hybrid Pulse-Width-Modulation Technique for Active-Front-End Rectifiers
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DOI：10.1109/TPEL.2016.2612832.png)
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摘要
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Nowadays, active-front-end rectifiers are increasingly used as grid connected devices. Their efficiency and performances have become relevant for reducing the overall grid losses. This paper thus introduces a predictive hybrid pulse-width-modulation (PH-PWM) technique, adaptable to any space-vector PWM (SVPWM) controller. As opposed to hybrid PWM techniques based on sector partitioning, the PH-PWM technique selects the appropriate PWM sequence online with the help of a predictive algorithm. This selection is based on a cost-function where users can define a tradeoff between various criteria, such as the reduction of current distortion and switching losses, as presented in this paper. The use of the PH-PWM technique increases performances in comparison with the conventional PWM techniques. The simulation and experimental results are presented to confirm the effectiveness of the proposed PH-PWM technique. Aside from the tradeoff capacity of the proposed PH-PWM technique, the simulation results validate a reduction of the switching losses for the converter up to 23% as compared with the conventional SVPWM technique.
Keyword:
Active-front-end (AFE) rectifier
bus-clamping pulse-width modulation (BCPWM)
hybrid PWM techniques
model predictive control
space-vector PWM
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1.7W
被引数:
8.3W
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