Three-phase boost converter having multiple L-C branches and met

Details Three-phase boost converter having multiple L-C branches and met Three-phase boost converter having multiple L-C branches and met

1998-07-17

1999-08-03

Wong, Peter S.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 84, H02M 112

Patent

active

059333367

ABSTRACT:
A boost converter having multiple L-C branches and a method of operating the same. The boost converter includes first, second and third phase inputs and an output. In one embodiment, the boost converter includes first and second switches coupled between corresponding rails of the output. The boost converter also includes first, second and third capacitors that form first, second and third L-C series branches, respectively, with a first inductor. The first, second and third L-C series branches are coupled between the first, second and third phase inputs, respectively, and a node between the first and second switches. The first and second switches cooperate progressively to employ a voltage across the rails less a voltage across the first, second and third capacitors to discharge currents through the first inductor and thereby reduce input current total harmonic distortion (THD) on all three of the phase inputs.

REFERENCES:
patent: 5323304 (1994-06-01), Woodworth
patent: 5694310 (1997-12-01), Malik et al.
Da Feng Weng, S. Yuvarajan, "Resonant Boost Input Three Phase Power Factor Corrector," 1998 IEEE, pp. 958-962.

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