Power electronic circuit arrangement having plural power convert

Details Power electronic circuit arrangement having plural power convert Power electronic circuit arrangement having plural power convert

1997-03-31

1998-09-08

Wong, Peter S.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 43, H02M 7537

Patent

active

058054375

ABSTRACT:
A power electronic circuit arrangement which comprises a first power converter is specified. A second power converter is connected between the load terminals of the first power converter and a load. The negative or positive values of the DC voltage intermediate circuits of the first and second power converters can be added by means of corresponding driving of the power converters. This achieves finer voltage gradation and, consequently, an improved approximation of the resulting output voltage to the sinusoidal waveform.

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patent: 3581212 (1971-05-01), McMurray
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patent: 3919619 (1975-11-01), Corry
patent: 4052657 (1977-10-01), Kleiner et al.
patent: 4161771 (1979-07-01), Bates
"Transistorwechselrichter fur Nahverkehrstriebfahrzeuge", Teitze, et al., Elektrische Bahnen 91 (1993), pp. 341-347 Not Translated.
"Simple Topologies for Single Phase AC Line Conditioning", Chen, et al., IEEE Transactions on Industry Applications, vol. 30, No. 2, Mar./Apr. 1994, pp. 406-412.
"Moderne Leistungshalbleiter in der Stromrichtertechnik", Bosterling, et al., etz Bd. 114 (1993), pp. 1310-1319 Not Translated.

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