公开(公告)号：US20190207492A1

公开(公告)日：2019-07-04

申请号：US16223971

申请日：2018-12-18

Applicant: ABB Schweiz AG

Inventor： Chenjie Lin ,  Matthew Henricksen ,  Ghanshyam Shrestha ,  Elio Alberto Perigo

IPC: H02K21/02 ,  H02K1/27 ,  H02K21/14

CPC classification number: H02K21/028 ,  H02K1/276 ,  H02K21/14

Abstract: A permanent magnet motor is provided that produces variable magnetic flux. The motor may include two different types of permanent magnets with different coercivities. The magnetic state of one of the magnets may be altered during use. In one state, the effective magnetic flux of the motor is greater, and in another state, the effective magnetic flux of the motor is less.