摘要:
A multiple feeder system of feeder sections for feeding electricity to ground coils of a superconductive magnetically levitated railway in which a train is equipped with a superconducting magnet is provided with unit feeder sections each having a length shorter than the length of the train; and a multiple feeder line for multiplexing the unit feeder sections so as to drive the train.
摘要:
Ground coils for a magnetically levitated railway include non-flux coils with an upper coil having a main-winding portion and an intermediate terminal forming a shunt-winding portion of the main-winding portion. A lower coil having a main-winding portion and an intermediate terminal forming a shunt-winding portion of the main-winding portion. The upper coil and the lower coils are arranged one above the other and are null-flux connected at null-flux connection points. A first lead terminal is connected to one null-flux connection point and a second lead terminal is connected to the intermediate terminal of the upper coil and the intermediate terminal of the lower coil for connecting to a power source and/or for interconnecting coils on left and right sides to provide guidance forces to the superconducting coils on the vehicle.
摘要:
A superconductive magnetically levitated railway is provided with six phases of propulsion-levitation-guidance ground coils arranged on both side walls of a track, and with a pair of superconducting magnets, which are mounted on the vehicle, corresponding to the six phases of the ground coils. The ground coils are a U-phase coil, a negative W-phase coil, a V-phase coil, a negative U-phase coil, a W-phase coil and a negative V-phase coil arranged successively at a 60.degree. pitch along both side walls of the track. As a result, higher harmonics of the magnetic field produced by the propulsion-levitation-guidance ground coils can be reduced. In addition, the number of layers of the ground coils can be reduced one and the number of ground coils can be decreased.
摘要:
A levitation-propulsion mechanism for an inductive repulsion type magnetically levitated railway having a vehicle with a truck and a track with a U-shaped cross-section with spaced opposed walls between which the truck runs, has a plurality of vertically positioned superconducting coils on both sides of the truck at intervals therealong in the direction of travel of the vehicle. Guidance coils are mounted on the inside surfaces of the walls of the track at intervals therealong in the direction of travel of the vehicle and opposed to the corresponding superconducting coils. Upper and lower levitation coils are positioned adjacent to the guidance conductor coils and opposed to the superconducting coils, the upper and lower coils being symmetrically positioned above and below, respectively, a horizontal line through the center of the guidance coils, and the upper and lower conductor coils are null-flux connected in a closed circuit. The guidance coils can be connected to a propulsion power source, in which case they become propulsion-guidance coils. Alternatively the levitation coils can be connected to the propulsion power source, in which case they become levitation-propulsion coils.
摘要:
A coil apparatus for a linear-motor railway system comprises six superconductive coils mounted on a bogie of a vehicle at a predetermined pitch such that N and S poles are alternately formed; ground coils disposed on either side wall of a guide, each of the ground coils providing propulsion, levitation, and guide functions, and each set of three ground coils corresponding to a pair of adjacent superconductive coils that form N and S poles; and a feeder circuit connected to the ground coils. The coil apparatus can decrease the number of ground coils in order to decrease man-hour required for installation, and to facilitate inspection and maintenance of contact points through reduction in the number of the connection points.
摘要:
A levitation, propulsion and guidance mechanism for an inductive repulsion-type magnetically levitated railway in which a vehicle runs along a track bed has superconducting coils fixedly arranged vertically on both sides of the truck of the vehicle at predetermined intervals therealong in a direction of travel of the vehicle. Propulsion coils are arranged on opposed walls of the track bed at predetermined intervals therealong in the direction of travel of said vehicle, and a propulsion power supply is connected to the propulsion conductor coils. Levitation-guidance conductor coils, each comprising upper and lower conductor coils positioned to have vertical symmetry, are disposed on sides of the propulsion conductor coils facing the superconducting coils and are arranged at predetermined intervals along the direction of travel of the vehicle. The upper and lower coils of each of these levitation-guidance conductor coils are null-flux connected, and opposing ones of the these levitation-guidance conductor coils arranged on the opposed side walls of the track bed are null-flux connected. The upper and lower conductor coils of the levitation-guidance conductor coils are set in such a manner that mutual inductance between the superconducting coils on one side of the vehicle and the opposing levitation-guidance conductor coils on one side wall of the track bed and the mutual inductance between the superconducting coils on the other side of the vehicle and the opposing levitation-guidance conductor coils on the other side wall of the track bed cancel each other out when the vehicle is running on auxiliary wheels.