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Why is asynchronous motor called asynchronous
The reason why asynchronous motors are called "asynchronous" is mainly due to the inherent difference between their speed and power frequency. The following are specific reasons: asynchronous speed and frequency, electromagnetic induction drive mechanism, differences in structure and operating principle. In summary, the "asynchronous" characteristics of asynchronous motors are reflected not only in the inherent differences in speed and frequency, but also in their electromagnetic induction drive mechanism and structural design.
Why is asynchronous motor called asynchronous
The reason why asynchronous motors are called "asynchronous" is mainly due to the inherent difference between their speed and power frequency. Here are the specific reasons:
The speed and frequency are not synchronized
The rotor speed of an asynchronous motor is always lower than the synchronous speed of the stator rotating magnetic field, which is the core source of the name "asynchronous". Synchronous motors are named after their strict matching of speed and power frequency, while asynchronous motors form a contrast because their speed lags behind the frequency.
Electromagnetic induction driving mechanism
Asynchronous motors induce current in the rotor through the rotating magnetic field generated by the stator, forming electromagnetic torque to drive the rotor to rotate. Due to the rotor magnetic field lagging behind the stator magnetic field, the speed cannot reach synchronous speed, and this electromagnetic induction process itself also reflects the "asynchronous" characteristic.
Differences in Structure and Operating Principles
Asynchronous motors do not require mechanical commutation structures (such as commutators and brushes), and rely solely on electromagnetic induction to operate. Synchronous motors require synchronous magnetic field drive and have a more complex structure. The essential difference in this operating mode further strengthens the naming logic of 'asynchronous'.
In summary, the "asynchronous" characteristics of asynchronous motors are reflected not only in the inherent differences in speed and frequency, but also in their electromagnetic induction drive mechanism and structural design.
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