The flux due to permanent magnet is the main part of gap flux, the rest flux is produced by the windingcoil, which play a part of regulation.
永磁体产生的磁场是气隙磁场的主要部分,另一部分是由辅助励磁绕组的电流来激励产生,起调节磁场的作用。
3
There are axial slots matching with the permanent magnets on outer peripheral of the rotator on the main motor shaft. The circulation windingcoil is embedded in the slots.