Reduced common voltage in a DC matrix converter

Details Reduced common voltage in a DC matrix converter Reduced common voltage in a DC matrix converter

1999-05-12

2000-12-26

Riley, Shawn

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

318811, H02M 112

Patent

active

06166930&

ABSTRACT:
A DC matrix converter having six forward current conducting power switches and six reverse current conducting power switches has the on time duration of each power switch within each pulse width modulation period controlled by relationships between d, q components of a modulation index determined by the ratio of a voltage command to the instantaneous voltage of the AC mains expressed in stationary d, q coordinates, the selection of which is made based on inequalities between the AC mains voltage components expressed in dq coordinates, and relationships of the AC main voltage components expressed in d, q coordinates. Zero vectors are related to the one AC main having lower line-to-neutral voltage than the other AC mains, using relationships between the instantaneous AC mains voltage in d, q coordinates.

REFERENCES:
patent: 5982645 (1999-11-01), Levran et al.
D.G. Holmes, T. A. Lipo: Implementation of a Controlled Rectifier Using AC-AC Matrix Converter Theory, IEEE Transactions on Power Electronics, vol. 7, No. 1, Jan. 1992, pp. 240-250.
D. Casadei, G. Grandi. G. Serra, A. Tani: Space Vector Control of Matrix Converters With Unity Input Power Factor and Sinusoidal Input/Output Waveforms, EPE '93, Brighton, Sep. 13-16, 1993, pp. 170-175.
L. Huber, D. Borojevic: Space Vector Modulated Three-Phase to Three-Phase Matrix Converter with Input Power Factor Correction, IEEE Transactions on Industry Applications, vol. 31, No. 6, Nov./Dec. 1995, pp. 1234-1246.

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