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2023

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07

What are the working principles and classifications of electric motors?

Author:

（1） Types of electric motors There are various types of electric motors. 1. According to the different working power sources of motors, they can be classified into DC motors and AC motors. AC motor is also divided into single-phase motor and three-phase motor. 2. According to structure and working principle, motors can be classified into DC motors, asynchronous motors, and synchronous motors. Synchronous motors can also be divided into permanent magnet synchronous motors, reluctance synchronous motors, and hysteresis synchronous motors. Asynchronous motors can be divided into induction motors and AC commutator motors. Induction motors are further divided into three-phase asynchronous motors, single-phase asynchronous motors, and shield pole asynchronous motors. AC commutator motors are also divided into single-phase series excited motors, AC DC dual purpose motors, and repulsive motors. DC motors can be divided into brushless DC motors and brushless DC motors according to their structure and working principle. Brushed DC motors can be divided into permanent magnet DC motors and electromagnetic DC motors. Electromagnetic DC motors are also divided into series excited DC motors, parallel excited DC motors, separately excited DC motors, and compound excited DC motors Excited DC motor. Permanent magnet DC motors are further divided into rare earth permanent magnet DC motors, ferrite permanent magnet DC motors, and aluminum nickel cobalt permanent magnet DC motors. 3. Classified by starting and operating methods, motors can be divided into capacitor starting single-phase asynchronous motors, capacitor running single-phase asynchronous motors, capacitor starting single-phase asynchronous motors, and split phase single-phase asynchronous motors. 4. Motors can be classified into driving motors and control motors according to their purpose.

（1） Types of electric motors
There are various types of electric motors.
1. According to the different working power sources of motors, they can be classified into DC motors and AC motors. AC motor is also divided into single-phase motor and three-phase motor.
2. According to structure and working principle, motors can be classified into DC motors, asynchronous motors, and synchronous motors.
Synchronous motors can also be divided into permanent magnet synchronous motors, reluctance synchronous motors, and hysteresis synchronous motors.
Asynchronous motors can be divided into induction motors and AC commutator motors. Induction motors are further divided into three-phase asynchronous motors, single-phase asynchronous motors, and shield pole asynchronous motors. AC commutator motors are also divided into single-phase series excited motors, AC DC dual purpose motors, and repulsive motors.
DC motors can be divided into brushless DC motors and brushless DC motors according to their structure and working principle. Brushed DC motors can be divided into permanent magnet DC motors and electromagnetic DC motors. Electromagnetic DC motors are also divided into series excited DC motors, parallel excited DC motors, separately excited DC motors, and compound excited DC motors
Excited DC motor. Permanent magnet DC motors are further divided into rare earth permanent magnet DC motors, ferrite permanent magnet DC motors, and aluminum nickel cobalt permanent magnet DC motors.
3. Classified by starting and operating methods, motors can be divided into capacitor starting single-phase asynchronous motors, capacitor running single-phase asynchronous motors, capacitor starting single-phase asynchronous motors, and split phase single-phase asynchronous motors.
4. Motors can be classified into driving motors and control motors according to their purpose.

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