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公开(公告)号：US12247885B2
公开(公告)日：2025-03-11
申请号：US18754630
申请日：2024-06-26
Applicant: SOUTHWEST JIAOTONG UNIVERSITY
Inventor： Jun Zheng , Peng Pang , Zihan Wang , Chenling Xian , Boyi Zhao
Abstract: A method for detecting temperature rise inside a superconducting levitation device based on deep learning is provided. An initial vibration acceleration information, an initial temperature rise information, and a vibration acceleration detection information are obtained. Feature extraction is performed on the initial vibration acceleration information to obtain a high-frequency feature parameter set and a low-frequency feature parameter set. Wavelet band energy calculation is performed for the high-frequency feature parameter set and the low-frequency feature parameter set to obtain a wavelet band energy information. The wavelet band energy information and the initial temperature rise information are input into a preset deep learning network for training to obtain an internal temperature rise detection model of the superconducting levitation device. The vibration acceleration detection information is input into the internal temperature rise detection model to obtain an internal temperature rise prediction information to reflect real-time temperature rise of the superconductor.
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公开(公告)号：US12005942B2
公开(公告)日：2024-06-11
申请号：US18483469
申请日：2023-10-09
Applicant: Southwest Jiaotong University
Inventor： Zigang Deng , Kaiwen Li , Jun Zheng , Xin Liu , Le Liang , Yihao Chen
CPC classification number: B61L27/04 , B60L13/04 , B61L27/16 , B61L27/50 , B60L2200/26
Abstract: A vehicle running system based on rail transport, including a track, a framework, two levitation devices and a running device. The track is provided with a slot, in which the framework is provided. The levitation devices are provided between the track and the framework, and a top surface of the levitation device is fixedly connected to a bottom surface of the framework through a suspension structure. The running device includes two conductor plates and two running structures. The conductor plates are fixedly arranged on the inner wall of the slot, and are corresponding to the running structures. The reluctance force of magnetic wheels is converted into a driving force to drive maglev vehicles, and the levitation force is converted into a guiding force to realize the self-stabilization of vehicle guidance. A vehicle running method based on this system is also provided.
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公开(公告)号：US11488754B2
公开(公告)日：2022-11-01
申请号：US17539426
申请日：2021-12-01
Applicant: Southwest Jiaotong University
Inventor： Zigang Deng , Shaolei Sun , Yanzhi Liu , Jun Zheng
IPC: H05K7/20 , H01F6/04 , F16L59/147 , F25D19/00
Abstract: The present invention discloses a superconducting bulk cooling apparatus and cooling method for a high-temperature superconducting magnetic levitation vehicle. The superconducting bulk cooling apparatus for the high-temperature superconducting magnetic levitation vehicle includes a refrigerating machine, a vacuum box and a Dewar tank. A condensing tank is arranged in the vacuum box, and the condensing tank is communicated with the Dewar tank through a nitrogen siphon pipe and a liquid nitrogen return pipe; a heat exchanger connected with the refrigerating machine is arranged in the condensing tank; and a flexible isolation pipe for thermally insulating and isolating the nitrogen siphon pipe and the liquid nitrogen return pipe is connected between the vacuum box and the Dewar tank. The present invention pumps the phase-change nitrogen out of the Dewar tank through a siphoning effect, so that the immersion cooling of high-temperature superconducting bulks is separated from the re-condensation of the nitrogen.
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4.发明授权公开(公告)号：US12202352B2
公开(公告)日：2025-01-21
申请号：US18768309
申请日：2024-07-10
Applicant: SOUTHWEST JIAOTONG UNIVERSITY
Inventor： Zigang Deng , Chenling Xian , Yongfu Yang , Xueli Li , Jun Zheng
Abstract: A cryostat device for a superconducting magnetic levitation train includes a conduction assembly, a support assembly and a refrigeration assembly. The conduction assembly includes a conduction shell, a copper box arranged in the conduction shell, and a thermally-conductive support rod assembly. A top of the thermally-conductive support rod assembly is connected with a bottom of the copper box. A bottom of the thermally-conductive support rod assembly is connected with a bottom wall of the conduction shell. A top of the copper box is provided with a superconducting bulk accommodating cavity. The bottom of the copper box is provided with a cooling energy connecting end. A top of the support assembly is configured to support the conduction assembly. A bottom of the support assembly is connected with a bogie chassis. The refrigeration assembly is provided with a cooling energy input end connected with the cooling energy connecting end.
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公开(公告)号：US11801756B2
公开(公告)日：2023-10-31
申请号：US18179982
申请日：2023-03-07
Applicant: Southwest Jiaotong University
Inventor： Zigang Deng , Hongfu Shi , Yuqing Xiang , Ting Cao , Hao Lu , Junzhi Liu , Le Liang , Jun Zheng
IPC: B60L13/04
CPC classification number: B60L13/04 , B60L2200/26
Abstract: A permanent magnet electrodynamic suspension system includes a conductor track and a suspension and guidance device. The conductor track is disposed on a roadbed, and the suspension and guidance device is disposed above the conductor track. The suspension and guidance device includes a first permanent magnet array and a second permanent magnet array. The first permanent magnet array and the second permanent magnet array are the same in the magnetization direction arrangement. The first permanent magnet array and the second permanent magnet array are arranged perpendicular to each other. A guidance method for the permanent magnet electrodynamic suspension system is further provided.
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Patent Agency Ranking
公开(公告)号：US11745598B2
公开(公告)日：2023-09-05
申请号：US18179965
申请日：2023-03-07
Applicant: Southwest Jiaotong University
Inventor： Zigang Deng , Kaiwen Li , Xin Liu , Hongfu Shi , Le Liang , Jun Zheng
CPC classification number: B60L13/10 , B60B19/006 , B61B13/08 , B60L2200/26
Abstract: A magnetic wheel driving device and a driving method using the same. The magnetic wheel driving device includes a vehicle body, a guide rail system, at least two magnetic wheel systems and a power system. The guide rail system includes two conductor plates, respectively arranged at two sides of the vehicle body. The at least two magnetic wheel systems are symmetrically arranged at two side walls of the vehicle body. A gap is provided between each magnetic wheel system and the corresponding conductor plate. The power system is configured to drive the at least two magnetic wheel systems to rotate.
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公开(公告)号：US11552580B1
公开(公告)日：2023-01-10
申请号：US17539504
申请日：2021-12-01
Applicant: Southwest Jiaotong University
Inventor： Jun Zheng , Jing Li , Yixing Du , Zigang Deng , Peng Pang
Abstract: A superconducting magnetic levitation train includes a frame, an arm, a first support member, a Dewar, a permanent magnet track, an iron core, a coil, a DC power supply system, and a second support member. the arm is arranged on a bottom of the frame; the Dewar 4 with bulk superconductors or superconducting magnets inside is arranged on the bottom of the frame 1; a bottom of the first support member and the second support member is fixedly arranged on a ground; the permanent magnet track is arranged on the first support member; the iron core is arranged on the second support member; the coil is sleeved on the iron core; and levitation, guidance and propulsion integrated superconducting magnetic levitation train further comprises a direct current (DC) power supply system to supply power to the coil.
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公开(公告)号：US11366038B1
公开(公告)日：2022-06-21
申请号：US17540622
申请日：2021-12-02
Applicant: Southwest Jiaotong University
Inventor： Zigang Deng , Dingding Wu , Yuhang Yuan , Huan Huang , Hongfu Shi , Jun Zheng , Jianghua Zhang
Abstract: A vibration test bench for electrodynamic-suspension magnetic levitation trains and a testing method using the same. The vibration test bench includes an adjustable track mounting surface, a track base, a guiding track and a simulated levitation device. The track base includes a first track base and a second track base. The first track base and the second track base are respectively provided at two sides of the adjustable track mounting surface. The guiding track is arranged at a bottom of the track base and can be embedded in the T-shaped bolt mounting grooves on the adjustable track mounting surface to move. The simulated levitation device is arranged on the track base and is configured to levitate the magnetic levitation train between the first track base and the second track base.
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公开(公告)号：US12267027B2
公开(公告)日：2025-04-01
申请号：US17555895
申请日：2021-12-20
Applicant: Southwest Jiaotong University
Inventor： Jun Zheng , Yanxing Cheng , Long Kou , Huan Huang , Zhihao Ke , Zigang Deng
Abstract: This application relates to simulation equipment, and more particularly to an apparatus and method for simulating a line running state of magnetic levitation. The apparatus includes a levitation-guidance mechanism, a moving mechanism and a magnetic guideway fluctuation simulated mechanism. The levitation-guidance mechanism is configured to detect a force on a single Dewar of a maglev train to be simulated. The moving mechanism is configured to move the levitation-guidance mechanism. The magnetic guideway fluctuation simulated mechanism is arranged below the levitation-guidance mechanism, and is configured to apply a variable force to the levitation-guidance mechanism. The variable force is configured to simulate a constantly-variable electromagnetic force applied to the levitation-guidance mechanism by a real track.
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10.发明授权公开(公告)号：US12128936B1
公开(公告)日：2024-10-29
申请号：US18777170
申请日：2024-07-18
Applicant: SOUTHWEST JIAOTONG UNIVERSITY
Inventor： Jun Zheng , Mingming Li , Sanchun Nie , Hao Lu
IPC: G01R29/08 , B61B13/08 , B61K9/08 , G01R1/16 , G01R33/038
CPC classification number: B61K9/08 , B61B13/08 , G01R1/16 , G01R29/0807 , G01R33/038
Abstract: A fault detection device for a superconducting electrodynamic maglev track includes a frame system and a detection system. The frame system is provided between two sidewall discrete figure-8-shaped coil tracks, and is provided with a signal processing device. The detection system is provided on each side of the frame system, and includes a lifting device and a clamping device. The lifting device is configured to adjust a vertical height of the clamping device. The clamping device is provided at an outer side of the lifting device, and is provided with a first connection portion and a second connection portion, which are respectively connected to a permanent magnet array and a receiving coil. The second connection portion is provided at periphery of the first connection portion. The receiving coil is electrically connected to the signal processing device. A fault detection method is further provided.
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