Power supply system for a linear motor

Details Power supply system for a linear motor Power supply system for a linear motor

1982-06-14

1984-06-12

Dobeck, B.

Electricity: motive power systems

Linear-movement motors

318105, 104292, 310 12, H02K 4102

Patent

active

044544570

ABSTRACT:
In a linear motor composed of a propelling coil laid on continuously along a track and a field system mounted on a vehicle for driving it, the propelling coil of an enormous length is sectioned into a number of propelling coil units which are connected alternately to two sets of feeders by means of switches, the feeder sets being supplied with polyphase currents from different power converters, respectively. The propelling coil units are connected in series to one another without any interposed insulation and sectioned by a number of lead conductors so that every pair of the adjacent propelling coil units has a common coil portion shared by them and having a length not smaller than that of the vehicle. A pair of the polyphase lead conductors connected to each of the propelling coil units are connected, respectively, to going feeders and return feeders constituting the set of feeders through switches. Change-over of power supply between the adjacent propelling coil units is performed during a period in which the vehicle is running along the common coil section by closing and opening the associated switches and controlling power converters.

REFERENCES:
patent: 3904941 (1975-09-01), Matsui et al.
patent: 3912991 (1975-10-01), Moyse
patent: 3912992 (1975-10-01), Lamb
patent: 3914669 (1975-10-01), Holtz
patent: 3960090 (1976-06-01), Maki et al.
patent: 4013014 (1977-03-01), Holtz
patent: 4068152 (1978-01-01), Nakamura et al.
patent: 4348618 (1982-09-01), Nakamura et al.
patent: 4361045 (1982-11-01), Gibson
Japanese Railway Eng., vol. 19, No. 1, 1979, p. 10 by Kan-ichiro Kaminishi.

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