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Unidirectional single-phase high power factor rectifier

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4 Author(s)
Lin, B.-R. ; Dept. of Electr. Eng., Nat. Yunlin Univ. of Sci. & Technol., Taiwan ; Hung, C.-H. ; Hung, T.-L. ; Chiang, H.-K.

A high power factor rectifier is proposed to draw a sinusoidal line current with nearly unity power factor, achieve balanced capacitor voltage and regulate the DC-link voltage. One flying capacitor is employed in the proposed circuit configuration to generate a three-level PWM voltage waveform on the AC terminal. A hysteresis current control scheme is used to track the line current command in phase with the mains voltage. A voltage compensator is employed to achieve balanced capacitor voltages. The effectiveness of the proposed control algorithm is demonstrated by simulation and experimental results using laboratory prototype circuit.

Published in:

Electric Power Applications, IEE Proceedings -  (Volume:150 ,  Issue: 4 )

Date of Publication:

8 July 2003

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