Self-guided linear propulsion structure for electric repulsion type magnetic levitation track system, and levitation force disturbance control method thereof
A magnetic levitation track and repulsion type technology, applied in electric traction, electric vehicles, vehicle parts, etc., can solve problems such as static power consumption of guiding devices
Active Publication Date: 2020-06-05
SOUTHWEST JIAOTONG UNIV
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[0004] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a self-guiding air-core permanent magnet synchronous propulsion device, aiming to solve the problem of static power consumption of the guiding device in the plate-type electric repulsion type suspension system
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[0017] The specific operating method of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0018] Refer to attached figure 1 and figure 2 As shown, a linear propulsion system with self-guiding function proposed in the present invention includes a train body 1, a suspension bogie 2, an independent plate-type electric suspension mechanism 3 installed under the bogie, supporting guide wheels 4, and a hollow permanent Magnetic linear propulsion system 5, and concrete track 6. Among them, the hollow-core linear propulsion system 5 is composed of an active zero-flux coil chain 8 installed on the track and a Halbach permanent magnet array 7 installed in the middle of the car body. Mechanical air gap9. When the train started from zero speed, the train was supported by the support wheels 4 installed on the suspension bogie; when the train running speed reached the floating speed, the support wheels were retracted. The i...
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The invention discloses a self-guided linear propulsion structure for an electric repulsion type magnetic levitation track system, and a levitation force disturbance control method thereof. A linear propelling system is a self-guiding linear propelling device (5), the self-guiding linear propelling device is a hollow-core linear permanent magnet synchronous motor, and a plurality of active zero-flux coil chains (8) are pre-buried in the extending direction of a concrete rail (6) to serve as stators of the active zero-flux coil chains (8); and the linear permanent magnet Halbach array (7) is rigidly connected right below the suspension bogie (2) to be used as a rotor of the suspension bogie. According to the structure, the maglev train can be driven and guided at the same time under the condition that extra equipment is not additionally arranged. When the train runs at a floating speed, the linear motor eliminates vertical suspension force disturbance of the train due to transverse deviation by adjusting the direct-axis current Id in the stator track coil chain in real time. The self-guided linear propulsion structure has the advantages of simple structure, low energy consumption, high guide rigidity, no increase of redundant suspension disturbance in low-speed operation and the like, and is suitable for high-speed and medium-speed magnetic levitation rail transit systems.
Description
technical field [0001] The invention relates to the field of constant conduction electrodynamic repulsion type maglev transportation, in particular to its driving part, an air-core permanent magnet synchronous linear propulsion device and a control method thereof. Background technique [0002] With the rapid development of high-speed railways and urban rail transit, the diversity of rail transit has begun to receive more and more attention. Among them, maglev rail transit technology has many advantages in terms of operating speed, climbing ability, turning radius, and quiet noise. Make it stand out among many new rail transit methods. [0003] The air-core permanent magnet linear synchronous motor drive is a kind of train propulsion scheme in the maglev rail transit system. It has the advantages of simple structure, high efficiency, and small magnetic resistance and pulse force. It is usually used as the propulsion device of the electric repulsion type maglev system. Electr...
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IPC IPC(8): B60L13/10
CPCB60L13/10
Inventor 张昆仑段家珩
Owner SOUTHWEST JIAOTONG UNIV