Electric power conversion systems – Current conversion – Including an a.c.-d.c.-a.c. converter
Reexamination Certificate
2008-07-01
2008-07-01
Nguyen, Matthew V (Department: 2838)
Electric power conversion systems
Current conversion
Including an a.c.-d.c.-a.c. converter
Reexamination Certificate
active
07394672
ABSTRACT:
A drive system for a vehicle moving along a trackway, particularly a magnetic levitation train, includes a linear motor which has a stator extending along the trackway, and can be connected to a three-phase output voltage of an output transformer. An electrical power supply supplies a three-phase supply voltage which is converted into a three-phase alternating voltage of predeterminable frequency and amplitude by a converter unit. The alternating voltage being connected to the primary winding of an output transformer. To provide for more differentiated power adaptation it is proposed that the secondary winding of the common output transformer be provided with taps which, in transformer mode, can be connected and disconnected by a stepping switch for adjusting and correcting the desired output voltage.
REFERENCES:
patent: 3874301 (1975-04-01), Alimanestianu
patent: 4769751 (1988-09-01), Schraudolph et al.
patent: 5542356 (1996-08-01), Richert et al.
patent: 6538412 (2003-03-01), Klose et al.
patent: 6963796 (2005-11-01), Larson et al.
patent: 2005/0017696 (2005-01-01), Hauer
patent: 60226795 (1985-11-01), None
patent: 03/044611 (2003-05-01), None
Forschungsinformation Bahntechnik: Transrapid Versuchsanlage Emsland. [Research information Railroad Technology :Transrapid Experimental System Emsland] ETR-Eisenbahntechnische Rundschau 29, 7/8-1980, pp. 587-590.
Balzer, et al.: Schaltanlagen [Switchgears], 9thEdition, Published by ABB Schaltanlagen GmbH Mannheim. Düsseldorf: Cornelsen Publishing House Schwann-Giradet, ISBN 3-464-482332-2, pp. 521-523.
Sequenz: Elektrische Maschinen [Electrical Machines], 8thEdition, Wien (a.o.): Springer-Publishing House, 1971, ISBN 3-211-80971-6, pp. 79-84.
Engel Markus
Meyer Reiner
Sekot Walter
Greenberg Laurence A.
Locher Ralph E.
Nguyen Matthew V
Siemens Aktiengesellschaft
Stemer Werner H.
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