China bldc motor suppliers is a high quality of brushless DC motor (BLDCM) in China.Brushless motor refers to the brushless and commutator (or collector ring) motor, also known as the commutator motor.
Dc motor has a rapid response, large starting torque, rotating speed of from zero to rated speed can provide the rated torque performance, but the advantages of dc motor is also its drawback, because the direct current machine to produce a constant torque under the rated load performance, the armature magnetic field and rotor magnetic field must be constant to maintain 90 °, this is about to borrow from the carbon brush and commutator.Carbon brush and commutator in the motor rotation will produce sparks, toner, so in addition to causing component damage, the use of the situation is also limited.Ac motor has no carbon brush and commutator, so it is maintenance-free, strong and widely used. However, to achieve the performance equivalent to THAT of DC motor, complex control technology is needed to achieve it.With the rapid development of semiconductors, the switching frequency of power components is greatly accelerated to improve the performance of driving motors.The speed of the microprocessor is also getting faster and faster, and the ac motor can be controlled in a rotating two-axis cartesional coordinate system, and the current component of the AC motor in the two axes can be properly controlled to achieve similar control and comparable performance with the DC motor.
