Two-stage, three-phase split boost converter with reduced total

Details Two-stage, three-phase split boost converter with reduced total Two-stage, three-phase split boost converter with reduced total

1998-08-12

2000-02-29

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 89, 323222, G05F 1613

Patent

active

060317396

ABSTRACT:
For use with a three-phase split boost converter having a primary stage with a primary rectifier and first and second primary boost switches coupled between an input and first and second outputs of the three-phase split boost converter, an auxiliary stage, method of reducing input current total harmonic distortion (THD) at the input of the three-phase split boost converter, and a three-phase split boost converter employing the auxiliary stage and method. In one embodiment, the auxiliary stage includes first, second and third auxiliary boost inductors coupled to corresponding phases of the input. The auxiliary stage also includes an auxiliary boost switch, interposed between the first, second and third auxiliary boost inductors and the first and second outputs of the split boost, that conducts to induce corresponding phase currents through the first, second and third auxiliary boost inductors thereby reducing input current THD at the input of the three-phase split boost converter.

REFERENCES:
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patent: 5886891 (1999-03-01), Jiang et al.
M.E. Jacobs, et al. "An Improved High Efficiency Rectifier for Telecom Applications", Apr. 1996 IEEE INTELEC Conference Proceedings, pp. 530-535.
A.R. Prasad, P.D. Ziogas, and S. Manias, "An Active Power Factor Correction Technique for Three-Phase Diode Rectifiers", Sep. 1989 IEEE PESC Proceedings, pp. 58-66.
R. Zhang & F.C. Lee, "Optimum PWM Pattern for a 3-Phase Boost DCM PFC Rectifier", Dec. 1996 VPEC Annual Seminar Proceedings, pp. 35-42.

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