公开(公告)号：US20230396124A1

公开(公告)日：2023-12-07

申请号：US17639333

申请日：2021-06-03

Applicant: JIANGSU UNIVERSITY

Inventor： Weiyu ZHANG ,  Juexin YU ,  Long SHAN ,  Huangqiu ZHU ,  Kai LI ,  Xiaoxiao ZHANG ,  Zhen WANG

IPC: H02K7/02 ,  H02K7/09 ,  B60L50/30

CPC classification number: H02K7/025 ,  B60L50/30 ,  H02K7/09

Abstract: An ultra-thin vehicle-mounted magnetic suspension flywheel battery for an electric vehicle and an operating method thereof are peovided. A motor bracket, an axial flux motor, a flywheel, and an inner stator, a coil, and a permanent magnet of a five-degree-of-freedom magnetic bearing are coaxially arranged in a shell from top to bottom. The flywheel consists of an upper layer, a middle layer, and a lower layer which are continuous. An upper annular groove is formed in a middle of a flywheel upper annular layer of the upper layer. The axial flux motor is placed in the upper annular groove. An annular inner groove, a middle-layer annular cavity, and a lower annular groove are communicated with each other and jointly used for placing the inner stator, the coil, and the permanent magnet of the five-degree-of-freedom magnetic bearing.

公开(公告)号：US20230361648A1

公开(公告)日：2023-11-09

申请号：US17630939

申请日：2021-03-26

Applicant: JIANGSU UNIVERSITY

Inventor： Weiyu ZHANG ,  Lindong ZHANG ,  Huangqiu ZHU ,  Long SHAN ,  Juexin YU ,  Jianping WANG

IPC: H02K7/02 ,  H02K7/09

CPC classification number: H02K7/025 ,  H02K7/09

Abstract: A tumbler-type vehicle-mounted flywheel energy storage device with five-degree-of-freedom magnetic suspension support for an electric vehicle is provided. A flywheel is formed into a bowl by a metal flywheel rotor and a composite material ring by interference fit. The metal flywheel rotor comprises an upper-section ring, a mid-section hollow hemisphere, and a lower-section ring. The composite material ring is closely fitted outside the upper-section ring to form a bowl-shaped bowl opening part. An annular axial thrust disc protrudes inward in a radial direction from an inner wall on a bottom end of the upper-section ring. An area above the axial thrust disc is a bowl opening empty slot layer, and an area below the axial thrust disc is a sphere empty slot layer and a bowl bottom empty slot layer in sequence, which form an inner cavity of the flywheel. A supporting frame is fitted in an inner stator.

公开(公告)号：US20230008153A1

公开(公告)日：2023-01-12

申请号：US17625777

申请日：2021-03-23

Applicant: Jiangsu University

Inventor： Huangqiu ZHU ,  Xin WANG

IPC: H02P21/00 ,  H02P21/18 ,  H02P27/08

Abstract: The controller comprises a displacement controller and a rotating speed controller. The displacement controller includes a vibration force compensation control module and a dead-time vibration compensation module. The vibration force compensation control module receives actual displacements and a rotor mechanical angle and outputs corresponding vibration compensation forces. The vibration force compensation control module comprises a first neural network band-pass filter, a second neural network band-pass filter, a third PID controller, and a fourth PID controller. The dead-time vibration compensation module receives a rotor electrical angle and an actual quadrature-direct axis currents and an actual direct axis current and outputs a quadrature-direct axis compensation voltages and a direct axis compensation voltage. The dead-time vibration compensation module consists of a third neural network band-pass filter in a direct axis direction, a fourth neural network band-pass filter in a quadrature axis direction, a sixth PI controller, and a seventh PI controller.