种双端混合励磁型定子分区式磁通切换电机

• Format: Patent
• Language: Chinese
• Published: 02.04.2019
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

本发明公开种双端混合励磁型定子分区式磁通切换电机，外定子的定子轭部内表面沿圆周方向相互交错间隔布置电枢齿和励磁齿，电枢齿上绕有电枢绕组，励磁齿上绕有外直流励磁绕组；内定子的定子铁心上沿圆周方向均匀布置数量与电枢齿数量相等的内定子槽，每个内定子槽的内侧嵌放块非稀土铁氧体永磁体，每个内定子槽的外侧放置内直流励磁绕组，在每两个内定子槽之间的定子铁心上嵌有块稀土钕铁硼永磁体，稀土钕铁硼永磁体的外径与非稀土铁氧体永磁体的内径相等，稀土钕铁硼永磁体的内径与内定子槽的内径相等；本发明采用内外定子双端电励磁，实现气隙磁场的灵活控制，具有更广阔的调磁范围，保证了电机较高的转矩密度和功率密度。 The invention discloses a double-end hybrid excitation stator-partition-type flux switching motor. The inner surface of a stator yoke of an external stator is provided with armature teeth and excitation teeth alternately at intervals in circumference direction; each armature tooth is wound by an armature winding, and each excitation tooth is wound by an external DC excitation winding; a stator core of an internal stator is uniformly provided with inner stator slots, the number of which is same with that of the armature teeth, in the circumference direction; the inner side of each inner stator slot is embedded by a non-rare-earth ferrite permanent magnet; the outer side of each inner stator slot is placed by an internal DC e