Is the permanent magnet motor a direct current motor or an AC motor?
Because AC motors require a changing magnetic field so that the rotor can be rotated in accordance with the frequency of the alternating current, the permanent magnet can not be used in the AC motor.The magnetic field of a direct current motor can be constant, so permanent magnets can be used.
Compared with the electric excitation motor, permanent magnet motor, especially rare earth permanent magnet motor has the advantages of simple structure, small volume, reliable operation; light weight; low loss, high efficiency; the shape and size of the motor can be flexible and other advantages, and the application range is very wide, almost all over the aerospace, defense, industrial and agricultural production and daily life in various fields.
Permanent magnet motor is DC motor, AC motor can also be (such as household; similarly, no breeze ceiling fan) can be a permanent magnet DC motor, AC motor can also be, even AC / dc.
