What are the similarities and differences between series excitation, shunt excitation, separately excited and compound excitation DC motors?
Two days ago, we learned about the working principle of asynchronous motor. Looking back at the asynchronous motor, it is because the rotating magnetic field continuously cuts the closed conductor in the rotor, generates the induced electromotive force and induced current, and then the interaction between the induced current and the rotating magnetic field in the rotor. Electromagnetic torque is generated such that the rotor operates in the same direction as the direction of the rotating magnetic field.
The synchronous motor that was said yesterday is only a permanent magnet synchronous servo motor, so today we will talk about DC motors. Mainly share three aspects of DC motor: basic structure, working principle and classification information of DC motor.
DC motors are motors that operate on DC operating voltage and are widely used in recorders, video recorders, DVD players, electric shavers, hair dryers, electronic watches, toys, etc. The basic principle of a DC motor is based on electromagnetic induction. Like an asynchronous motor, it is composed of a stator and a rotor.
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