Title: Control of Input Current of PWM Rectifier without Secondary Filter Circuit
Abstract: Regarding the PWM(pulse width modulation) rectifier without the secondary filter circuit,the ripple mechanism of DC-link voltages was analyzed,and its effect on input currents of the rectifier was discussed in respect of DC-link voltage control and PWM.The harmonic control method was presented to eliminate low order harmonics of input currents produced by ripple DC-link voltages.Traditional predictive current control and the improved strategy were compared by simulation.The simulation result shows that low order harmonics of input currents are suppressed evidently,and the experimental result verifies the effectiveness of the harmonic control method.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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