1. Torque motor
Torque motor has the characteristics of low speed and high torque. The ac torque motor is commonly used in the textile industry, and its working principle and structure are the same as that of single-phase asynchronous motors.
2. Switched reluctance motor
Switched reluctance motor, motor is a new type of speed control structure is extremely simple and strong, low cost, excellent speed regulating performance, strong competitors, is a traditional control motor has great market potential.
3. Brushless DC motor
Brushless dc motor of the mechanical properties and the characteristics of the adjustment good linearity, wide speed range, long service life, convenient maintenance noise small, does not exist a series of problems caused by brush, so this kind of motor in the control system has a lot of applications.
4. DC motor
The direct current motor has the advantages of good speed regulation, easy starting and ability to load, so the current dc motor is still widely used, especially after silicon controlled dc power supply.
5. Asynchronous motor
The asynchronous motor has the advantages of simple structure, convenient manufacture, use and maintenance, reliable operation, low quality and low cost. Asynchronous motor is widely used as the drive machine, water pump, fan, compressor, lifting lifting equipment, mining machinery, light industrial machinery, agricultural and sideline products processing machinery, etc. Most of the workers and peasants production machinery, household appliances and medical devices, etc.
6. Synchronous motor
The synchronous motor is mainly used for large machinery, such as blower, water pump, ball mill, compressor, rolling mill and small, miniature instrument or acting as control element. Three phase synchronous motor is its main body. In addition, it can also be used as a tuner to convey inductive or capacitive reactive power to the grid.