公开(公告)号：US20220089033A1

公开(公告)日：2022-03-24

申请号：US17422134

申请日：2019-06-27

Applicant: SOUTHWEST JIAOTONG UNIVERSITY

Inventor： Qunzhan LI ,  Kai GUO ,  Shaofeng XIE ,  Zihan LI ,  Xiaohong HUANG ,  Yuhua GUO ,  Shuqian LI ,  Bo WU

IPC: B60L5/39 ,  B60L5/36 ,  B60M1/30

Abstract: The present invention relates to the technical field of train power supply and operation control, and provides a three-rail power supply control system for an electrical railway train. Power supply rails in the system are divided into a first power supply rail, a second power supply rail, and a third power supply rail, wherein the first power supply rail, the second power supply rail, and a running rail constitute a three-phase AC power supply loop, and the third power supply rail and the running rail constitute a DC power supply loop. An AC-DC-AC variable voltage variable frequency device supplies power to a train traction motor by means of the three-phase AC power supply loop and current collectors. Frequency modulation and voltage regulation power supply is conducted by means of the AC-DC-AC variable voltage variable frequency device on the ground to achieve train driving and operation control. The DC power supply loop is powered by means of a rectifying device on the ground, and power is supplied to auxiliary electric equipment of the train by means of the current collectors. By changing the power supply mode of the system and optimizing the system structure, the weight and axle load of train-mounted equipment are effectively reduced, lightweight of the train is achieved, and the bearing efficiency of the train is improved, and moreover, automatic control and unmanned driving for train operation are achieved in the most economical way.

公开(公告)号：US20230202234A1

公开(公告)日：2023-06-29

申请号：US18018343

申请日：2021-04-29

Applicant: SOUTHWEST JIAOTONG UNIVERSITY

Inventor： Qunzhan LI

IPC: B60B37/10

CPC classification number: B60B37/10

Abstract: The present disclosure provides a composite powered wheel set, a train, a wheel-rail system and a train control method. The composite powered wheel set comprises two booster wheels and two support wheels mounted on a driving axle. The booster wheels are fixedly mounted on two ends of the driving axle, the support wheels are mounted on the driving axle via bearings, the moving axle is connected to a first transmission device, which is connected to a first power mechanism, and the driving axle is further connected to a train bogie via a connecting device. Booster wheels and booster rails are provided to improve anti-skid performance, so the train will not skid when running on a steep slope or under a heavy traction load. Restrictions on the railway slope, train traction load, and train speed are eliminated to a great extent, and the application scope of the wheel rails is expanded.

公开(公告)号：US20210129707A1

公开(公告)日：2021-05-06

申请号：US17255777

申请日：2019-06-21

Applicant: SOUTHWEST JIAOTONG UNIVERSITY

Inventor： Qunzhan LI ,  Jiqin WU

IPC: B60M1/30 ,  B60L5/39 ,  B60L5/36 ,  B60L13/10

Abstract: The present invention provides a three-phase power supply and collection device for a maglev train. A cross beam is arranged at the middle part of the bogie of the maglev train, and the lower surface of the cross beam is provided with three sets of longitudinal bearing seats, and three insulating bushes, three collector shoes and three power supply rails corresponding to the longitudinal bearing seats; the two ends of the horizontal part of each insulating bush is a rotating shaft structure, and the vertical part of the insulating bush is a hollow tubular structure; the upper part of each collector shoe is the shoe handle, the lower part is the shoe body, and the bottom of the shoe body is in a concave semicircular shape; the top surface of each power supply rail is in a convex semicircular shape.