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The excitation mode(Separate excitation and Shunt excitation) of DC motor

DC Motor

The excitation mode of DC motor refers to the problem of how to supply power to the excitation winding and generate the excitation flux potential to establish the main magnetic field. According to the different excitation mode, DC motors can be divided into the following types:

Separate excitation(a)

The excitation winding has no connection with the armature winding, and the DC motor powered by other DC power supply to the excitation winding is called the separately excited DC motor, and the permanent magnet DC motor can also be regarded as the separately excited DC motor.

Shunt excitation(b)

The field winding of a shunt DC motor is in parallel with the armature winding. As a shunt generator, the end voltage emitted by the motor itself supplies power to the excitation winding; As a shunt motor, the field winding and armature share the same power supply, and the performance is the same as that of separately excited DC motor.




Post time: Dec-04-2023