US 12,294,258 B2
Multi-excitation-source axial-flux permanent-magnet motor with partitioned, hierarchical, and variable poles, and variable-condition driving control system
Lei Xu, Jiangsu (CN); Danchen Xu, Jiangsu (CN); Chao Zhang, Jiangsu (CN); Xiaohua Zang, Jiangsu (CN); Xiaoyong Zhu, Jiangsu (CN); and Li Quan, Jiangsu (CN)
Assigned to Jiangsu University, Jiangsu (CN)
Appl. No. 18/575,333
Filed by Jiangsu University, Jiangsu (CN)
PCT Filed May 6, 2023, PCT No. PCT/CN2023/092499
§ 371(c)(1), (2) Date Dec. 29, 2023,
PCT Pub. No. WO2024/174385, PCT Pub. Date Aug. 29, 2024.
Claims priority of application No. 202310161787.9 (CN), filed on Feb. 24, 2023.
Prior Publication US 2025/0079959 A1, Mar. 6, 2025
Int. Cl. H02K 16/04 (2006.01); H02K 1/02 (2006.01); H02K 1/16 (2006.01); H02K 1/2796 (2022.01); H02K 1/32 (2006.01); H02K 3/28 (2006.01); H02K 11/33 (2016.01)
CPC H02K 16/04 (2013.01) [H02K 1/02 (2013.01); H02K 1/16 (2013.01); H02K 1/2796 (2022.01); H02K 1/32 (2013.01); H02K 3/28 (2013.01); H02K 11/33 (2016.01); H02K 2201/06 (2013.01); H02K 2213/03 (2013.01); H02K 2213/06 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A logging method based on a time-domain electromagnetic tensor, wherein the method comprising: A multi-excitation-source poles-partitioned dual-stator axial-flux controllable permanent-magnet motor, comprising a first stator, a second stator, a first permanent magnet, a second permanent magnet, a third permanent magnet, a fourth permanent magnet, a first rotor yoke, a second rotor yoke, a first armature winding, a second armature winding, a first field winding, a second field winding, a first air gap, and a second air gap, wherein the first stator and the second stator are symmetrically provided outside the motor, with respective slots facing inward; the first armature winding is wound on stator teeth of the first stator in a distributed structure; the second armature winding is wound on stator teeth of the second stator in a distributed structure; the first field winding is wound on the stator teeth of the first stator in a centralized structure; the second field winding is wound on the stator teeth of the second stator in a centralized structure; the first rotor yoke and the second rotor yoke are symmetrically provided inside the motor, with respective slots facing inward; a plurality of fan-shaped slots are uniformly distributed inside the first rotor yoke and each are provided therein with the third permanent magnet; a plurality of fan-shaped slots are uniformly distributed inside the second rotor yoke and each are provided therein with the fourth permanent magnet; positions of the fan-shaped slots on the first rotor yoke and the second rotor yoke are completely symmetrical; the first permanent magnet and the second permanent magnet are provided between the first rotor yoke and the second rotor yoke; the first permanent magnet and the second permanent magnet are spaced apart from each other and circumferentially staggered from the third permanent magnet and the fourth permanent magnet; the first air gap is provided between an inner side of the first stator and an outer side of the first rotor yoke; the second air gap is provided between an inner side of the second stator and an outer side of the second rotor yoke; and an axis of the first stator and the second stator coincides with a rotational axis of the first rotor yoke and the second rotor yoke.