Status of Brushless DC Motors in Industry
Release time:
2022-12-08
Brushless DC motor maintains the excellent control characteristics of brush DC motor, in the electromagnetic structure and brush DC motor, but its armature winding is placed on the stator, rotor magnets.
Brushless DC motor maintains the excellent control characteristics of brush DC motor, in the electromagnetic structure and brush DC motor, but its armature winding is placed on the stator, rotor magnets. Brushless DC motor armature windings like AC motor windings, the use of multi-phase form, connected to the DC power supply through the driver, the stator using position sensors to achieve electronic commutation instead of brushed motor brushes and commutator, the phases one by one through the current, and the rotor poles of the main field of magnetic interaction, generating torque.
Therefore, at present in the industrial advanced countries, industrial automation in the field of brush DC motor has been gradually replaced by brushless DC motor. Nowadays, it is very rare to see systems with brush DC motors as actuating motors in equipment imported from abroad. These countries related companies (such as the United States, Britain, Japan, Germany, etc.) has been no longer mass production of servo drive with brush DC motor.
In industrial applications, brushless DC motors have obvious advantages in terms of speed, controllability, reliability, small size, light weight, energy saving, efficiency, environmental resistance and economy. In recent years, with the rare earth permanent magnet materials and power electronic devices continue to improve the performance and price ratio, brushless DC motor as a small and medium-power high-performance speed motors and servo motors in the industrial applications more and more widely.
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