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公开(公告)号：US20240213864A1
公开(公告)日：2024-06-27
申请号：US18606620
申请日：2024-03-15
申请人： Tau Motors, Inc.
发明人： Walter Wesley Pennington, III , Matthew J. Rubin , Gregory Gordon Stevenson , Michael Parker Owen , Ethan Bagget Swint , Matthias Preindl
IPC分类号： H02K21/04 , H02K1/22 , H02P21/22 , H02P25/098
CPC分类号： H02K21/042 , H02K1/223 , H02P21/22 , H02P25/098
摘要： An electric machine includes a stator and a rotor energizable by magnetic fields produced by the stator when receiving a stator current to produce relative motion between the rotor and the stator. A controller is configured to send the stator current through the stator at a current angle measured from the closest one of a pole of the rotor, determine a desired operational output of the electric machine, and determine a desired rotor motion corresponding to the desired operational output of the electric machine. The controller is further configured to calculate a vector control modulation applied to the stator that elicits the desired rotor motion, and adjust the current angle of the stator current based on the vector control modulation to cause the rotor to perform the desired rotor motion and achieve the desired operational output of the electric machine.
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公开(公告)号：US20240079945A1
公开(公告)日：2024-03-07
申请号：US18255397
申请日：2022-01-07
发明人： Ho Min KIM , Ji Hyung KIM , Yoon Seok CHAE , Yong Soo YOON , Seung Hak HAN
IPC分类号： H02K55/04 , G01R31/34 , G01R33/035 , H02K1/276 , H02K21/04
CPC分类号： H02K55/04 , G01R31/346 , G01R33/035 , H02K1/276 , H02K21/046
摘要： Provided is a testing apparatus for an active current control-type non-contact superconductive exciter having a hybrid magnet installed therein, and a high-temperature superconductive rotating machine using same. Provided is principally characterized by having a hybrid magnet, in a module form, in which a permanent magnet, a DC electromagnet and an AC electromagnet are used together, wherein the hybrid magnet is set in a plurality along the circumferential direction of a ring-shaped iron stator, is formed to correspond to the outer side of a rotor, having a high-temperature superconductive tape (or a second-generation high-temperature superconductive wire), of a non-contact superconductive exciter, and thus enables a selected operation (charging, discharging and the like) before and after rotation of a driving motor.
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公开(公告)号：US11722043B2
公开(公告)日：2023-08-08
申请号：US17038757
申请日：2020-09-30
IPC分类号： H02K21/04 , H02K1/276 , H02K21/14 , H02K1/2706
CPC分类号： H02K21/042 , H02K1/2706 , H02K1/2766 , H02K21/046 , H02K21/14
摘要： A synchronous machine having a hybrid rotor excitation. The synchronous machine includes a rotor having a plurality of permanent magnets and electromagnets embedded within a rotor body. The permanent magnets produces a constant magnet field having a magnetic axis along a direct axis (D-axis). The electromagnets produces a variable magnetic field along a magnetic axis offset from the D-axis, preferable substantially orthogonal to the D-axis. The plurality of permanent magnets are separated from the electromagnets by a rotor air-gap. The plurality of permanent magnets includes inner pairs and outer pairs of permanent magnets nested in a V-shaped configuration. In another embodiment, the outer pairs of permanent magnets are replaced with outer radius electromagnets.
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公开(公告)号：US20230018320A1
公开(公告)日：2023-01-19
申请号：US17378932
申请日：2021-07-19
申请人： ABB Schweiz AG
摘要： An electric machine includes a stator and a rotor. The rotor includes stacked laminations forming a rotor core. The rotor rotates relative to the stator about a central axis. The rotor core has an outer diameter. Each lamination includes a plurality of magnet slots. Each magnet slot includes a ferrite permanent magnet located therein, adjacent pairs of the ferrite permanent magnets defining a number of poles. Each of the laminations includes a plurality of non-circular rotor bar apertures spaced about the central axis of the rotor and disposed adjacent to and radially inward of the rotor outer diameter. A non-cylindrical rotor bar is disposed in each respective of the plurality of rotor bar apertures. The rotor bars are formed of a conductive material, wherein at least some of the plurality of rotor bars collectively form a rotor bar cage.
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5.发明申请公开(公告)号：US20220393555A1
公开(公告)日：2022-12-08
申请号：US17886750
申请日：2022-08-12
摘要： A planar drive system comprises a stator and a rotor. The stator comprises a plurality of stator conductors. The rotor comprises a magnet device comprising at least one rotor magnet. The stator is configured to energize the stator conductors. A magnetic interaction can be produced between energized stator conductors of the stator and the magnet device of the rotor in order to drive the rotor. The stator is configured to carry out the energizing of the stator conductors by a current control based on a pulse-width modulation. Due to the current control, a ripple current in energized stator conductors of the stator and thereby an alternating magnetic field can be generated. The rotor comprises at least one rotor coil in which an alternating voltage can be induced due to the alternating magnetic field.
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公开(公告)号：US20220368260A1
公开(公告)日：2022-11-17
申请号：US17662363
申请日：2022-05-06
申请人： YU-YU CHEN
发明人： YU-YU CHEN
IPC分类号： H02P25/022 , H02K7/02 , A63B21/22 , H02K21/04
摘要： A driving and resistance control system for a permanent-magnet synchronous motor is disclosed. A control device includes a processing unit, a motor driving circuit, a resistance controller, and an interlock switch. In a first operation mode, the interlock switch makes the motor driving circuit and the permanent-magnet synchronous motor open-circuiting, and connecting stator windings of the permanent-magnet synchronous motor to the resistance controller, and under this condition, the external rotor of the permanent-magnet synchronous motor is rotated by spinning of a flywheel, so that the permanent-magnet synchronous motor is operating in a generator mode to generate a resisting force to the flywheel by mesas of a resistance generation device. In a second operation mode, the interlock switch makes the motor driving circuit and the permanent-magnet synchronous motor closed-circuiting and cutting off control of the resistance controller, and electrical energy is supplied from the power supply circuit to the permanent-magnet synchronous motor, so as to make the permanent-magnet synchronous motor operating in a motor mode to induce an acceleration on the external rotor.
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公开(公告)号：US20220337143A1
公开(公告)日：2022-10-20
申请号：US17708427
申请日：2022-03-30
申请人： EXEDY Corporation
发明人： Tomohiro WADA , Kenji KITADA
IPC分类号： H02K21/04
摘要： A rotor of a rotary electric machine includes first and second magnetic poles, and first and second holding members. The first magnetic pole has a first annular portion and first claw portions. The first claw portions extend axially from the first annular portion, and are spaced apart from each other in a circumferential direction. The second magnetic pole includes a second annular portion and second claw portions. The second annular portion is disposed on a first side in an axial direction to the first annular portion. The second claw portions extend axially from the second annular portion, and are disposed alternately with the first claw portions in the circumferential direction. The first holding member includes a first engaging portion disposed radially outward to a tip-portion of each first claw portion. The second holding member includes a second engaging portion disposed radially outward to a tip-portion of each second claw portion.
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8.发明申请公开(公告)号：US20220271639A1
公开(公告)日：2022-08-25
申请号：US17677984
申请日：2022-02-22
申请人： FEAAM GmbH
发明人： Gurakuq DAJAKU
IPC分类号： H02K21/04 , H02K1/2713
摘要： A claw pole rotor (10) for an electrical machine (11) is specified, the claw pole rotor (10) comprising a rotor yoke (12), and at least two first claw pole fingers (13) and at least two second claw pole fingers (14), wherein the first and second claw pole fingers (13, 14) each are connected with the rotor yoke (12), the first claw pole fingers (13) extend from a first side (15) of the claw pole rotor (10) towards a second side (16) of the claw pole rotor (10), the second claw pole fingers (14) extend from the second side (16) towards the first side (15), one first magnet (17) is in each case arranged at the first side (15) between the first claw pole fingers (13), and one second magnet (18) is in each case arranged at the second side (16) between the second claw pole fingers (14). Moreover, a rotor arrangement (23) for an electrical machine (11) is specified.
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公开(公告)号：US20220231615A1
公开(公告)日：2022-07-21
申请号：US17611100
申请日：2019-08-08
发明人： Akira BANDO , Hironari KAWAZOE , Akira KIKUCHI
摘要： A secondary magnetic excitation generator-motor device that inputs a first ignition pulse command to a three-level NPC power converter such that a detected excitation current value corresponds with an excitation current command value, the secondary magnetic excitation generator-motor device having a function of identifying a first phase, a second phase, or a third phase in descending order of a current absolute value, wherein a pulse switch to output an ignition pulse command to the three-level NPC power converter switches the ignition pulse command to the second ignition pulse command when a current absolute value exceeds a set overcurrent level 1, and switches the ignition pulse command to the first ignition pulse command when current absolute values for three phases are all equal to or smaller than a set overcurrent level 2.
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公开(公告)号：US11323014B2
公开(公告)日：2022-05-03
申请号：US17045122
申请日：2020-03-31
发明人： Xueyi Zhang , Wenjing Hu , Yulong Lei , Shanjian Wang , Hongbin Yin , Huihui Geng
摘要： The disclosure discloses a driving motor with an asymmetrical magnetic pole type of permanent magnet and claw pole electric excitation for an electric automobile which includes a front end cover, a rear end cover, a housing, an asymmetric magnetic pole type of permanent magnet rotor, a claw pole electric excitation rotor, and a stator. Wherein the asymmetric magnetic pole type of permanent magnet rotor is provided with first magnetic pole groups and second magnetic pole groups, the first magnetic pole groups and the second magnetic pole groups are of an asymmetric structure, polarities of outer sides of the first magnetic pole groups and the second magnetic pole groups are distributed in a manner of N poles and S poles arranged at intervals. A utilization of inner space of the motor rotor can be improved, the performance of the motor is improved, and the costs of the motor are reduced.
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