Poly-phase AC/DC active power converter

Details Poly-phase AC/DC active power converter Poly-phase AC/DC active power converter

2011-01-11

2011-01-11

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

C323S207000, C363S049000

Reexamination Certificate

active

07869234

ABSTRACT:
A three-phase AC/DC active power converter provides an H-bridge that is controlled by a DSP (digital signal processing) controller that places the H-bridge in a voltage-boost mode of operation when voltage of a DC-link capacitor maintained by the H-bridge is near than the voltage input from a three-phase power source. The voltage difference between the boosted DC-link voltage and the three-phase power source voltage provides a voltage potential thereby giving the control loops a possible gain value. The gain value provides loop stability to thereby prevent an inrush of electrical current into the power converter upon startup. The converter also allows harmonic distortion to be modified through wave shaping of the normally pure sinus conduction signal.

REFERENCES:
patent: 5491624 (1996-02-01), Levran et al.
patent: 5959852 (1999-09-01), Deloy et al.
patent: 6850426 (2005-02-01), Kojori et al.

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