Regulation of D.C. voltage of a pulse-width modulated rectifier

Details Regulation of D.C. voltage of a pulse-width modulated rectifier Regulation of D.C. voltage of a pulse-width modulated rectifier

1991-05-03

1992-08-18

Beha, Jr., William H.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363126, 363127, H02M 7797

Patent

active

051405148

ABSTRACT:
Procedure for regulating the d.c. voltage of a pulse-width modulated rectifier bridge controlled by self-commutated semiconductor components and provided with filtering coils, in which procedure the phase voltages of the supplying three-phase mains and the d.c. voltage of the rectifier are measured. The modulation references needed for the pulse-width modulation are produced using pure sine and cosine curves synchronized with the mains voltages, with spatial vectors formed from them or with components of such vectors, by means of a phase-locked loop. The regulation is effected in a coordinate system tied to the spatial vector of the mains voltages.

REFERENCES:
patent: 4933828 (1990-06-01), Ogawa et al.
patent: 4984147 (1991-01-01), Araki
patent: 5034874 (1991-07-01), Araki

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