Power converter for converting DC voltage into AC phase voltage

Details Power converter for converting DC voltage into AC phase voltage Power converter for converting DC voltage into AC phase voltage

1993-04-20

1994-11-01

Stephan, Steven L.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 98, 363132, 318811, H02M 7515

Patent

active

053611969

ABSTRACT:
An apparatus for a three-level DC/AC converter, in which the width of output pulse having the same polarity as the fundamental wave of the converter output phase voltage is adjusted depending upon the DC component of a differential voltage between two DC voltages in a dipolar modulation system of the converter. Whereby, the imbalance of DC components between the two DC voltages is easily and effectively suppressed.

REFERENCES:
patent: 4386396 (1983-05-01), Angquist
patent: 4953069 (1990-08-01), Braun et al.
patent: 5060129 (1991-10-01), Maruyama
patent: 5155675 (1992-10-01), Maruyama et al.
Novel Approach to the Generation and Optimization of three level PWM Waveforms PESC. '88 Record, Apr. 1988 pp. 1255-1262.
Balancing of DC Input Capacitor Voltages of an NPC Inverter (Material of the Society of Study), Japanese Association of Electronic Engineering Society for Studying of Semiconductor Power conversion, SPC-91-31, Jun. 1991, pp. 111-120.

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