Three-phase voltage-fed AC/DC converter

Details Three-phase voltage-fed AC/DC converter Three-phase voltage-fed AC/DC converter

2007-02-27

2009-02-24

Nguyen, Matthew V (Department: 2838)

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

C363S034000

Reexamination Certificate

active

07495936

ABSTRACT:
A three-phase voltage-fed AC/DC converter includes a conversion circuit which converts power from a DC voltage source to three-phase AC power. The converter further includes a UM conversion circuit which carries out dq conversion of the three-phase output voltage, a superior voltage control circuit which outputs a voltage reference vector based on a superior reference vector and an output voltage vector obtained by the UM conversion circuit, an inferior voltage control circuit which outputs a PWM reference based on the voltage reference vector and the output voltage vector, and a frequency control circuit which synchronizes a value generated based on a q-axis component from the UM conversion circuit with a rotation angle of a conversion matrix in the UM conversion circuit.

REFERENCES:
patent: 5994870 (1999-11-01), Kaneko et al.
patent: 6005783 (1999-12-01), Xue et al.
patent: 6043617 (2000-03-01), Matsumoto et al.
patent: 52-103634 (1977-08-01), None
patent: 06-311653 (1994-11-01), None

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