Description
hardware flow control. It is an ideal choice in the field of industrial automation.
In a DC brush motor, the stator is a permanent magnet and the rotor is a wound coil; the magnetism has two poles, which repel each other and attract each other.
Therefore, passing direct current through the rotor coil will allow the rotor to rotate until it reaches the position where the torque is the smallest with the stator. At this
time, due to the commutation of the brushes, the position where the torque was originally the smallest becomes the position where the torque is the largest. Finally,
over and over again, the rotor continues to rotate. .
Brushless DC does not have brushes; at the same time, in brushless DC motors, the stator is a permanent magnet and the rotor is a winding structure.
In brushless DC motors, the stator is a winding and the rotor is a permanent magnet. If the winding is still on the rotor, you have to rely on physical contact to energize
the winding, which does not solve the problem of brush aging. In the brushless DC motor, the winding exists in the stator and has three phase wires; when working, the
input and output currents are successively supplied to the three phase wires to achieve the purpose of commutation. In brushless DC, the electromagnetic force generated by the
rotor and stator is the same as that of brushed DC.
For brushless DC motors, it is not necessarily whether the stator is inside or outside. A motor with a rotor outside and a stator inside is generally
called an external rotor motor. The hub motor is a very special external rotor motor.
Brushless DC motor, why is it classified as AC motor?
This is because when we supply power to the controller of brushless DC and permanent magnet synchronous motors, we supply DC
power, so it is called brushless DC; however, after the DC power is inverted through the motor controller, it communicates with the motor. For the three connected phase lines,
the power supply type changes to AC. Only the changing phase voltage of AC can cause the current on the three phase lines of the motor to continuously reverse direction,
so the motor is classified as an AC motor.
3. Similarities and differences between brushless DC and permanent magnet synchronization
Brushless Direct Current Motor, English BLDC, English full name Brushless Direct Current Motor
Permanent Magnet Synchronous Motor, English PMSM, English full name: Permanent Magnet Synchronous Motor
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ABB UNITROL 5000
UNITROL 1020 controller ABB
UNITROL 1020 UNS0119A-Z,V1 3BHE030579R0003
HIEE305098R0001 Excitation system measuring board
UNITROL1000 Z.V3 3BHE014557R0003
3BHE014557R0003 Excitation system ABB
UNITROL1000 Z.V3 Excitation system ABB
HIEE410730P201AENDA Excitation system measuring board
UNS0007A-P V1Excitation system measuring board
UNS0007A-P V1 HIEE410730P201AENDA
UNS0007A-P V1 HIEE305098R0001 ABB
UNS0119A-P,V101 3BHE029153R0101 ABB
UNS0119A-P,V101 3BHE029154P3 REV.G ABB
3BHE029153R0101 Excitation system measuring board
3BHE029154P3 REV.G Excitation system measuring board
UNS0119A-P,V101 Excitation system measuring board
3BHE042393R0101 Excitation system measuring board
UNS0122A-P Excitation system measuring board
UNS0122A-P 3BHE042393R0101 ABB
UNS0874A HIER471062P1 ABB
HIER471062P1 Excitation system measuring board
UNS0874A Excitation system measuring board
3BHB006338R0001 Excitation system measuring board
UNS0881a-P,V1 Excitation system measuring board
UNS0881a-P,V1 3BHB006338R0001 ABB
3BHE008128R0001 Excitation system measuring board
UNS0887A-P Excitation system measuring board
UNS0887A-P 3BHE008128R0001 ABB
UNS2880B-P V1 3BHE014967R0001 ABB
3BHE014967R0001 Excitation system ABB
UNS2880B-P V1 Excitation system ABB
UNS2880b-P,V2 3BHE014967R0002 ABB
3BHE014967R0002 Excitation system ABB
UNS2880b-P,V2 Excitation system ABB
3BHE003855R0001 Excitation system ABB
3BHE003855R0001 Excitation system ABB
UNS2881b-P,V1 Excitation system ABB
UNS2881b-P,V1 3BHE009319R0001 ABB
UNS2882A 3BHE003855R0001 ABB
3BHE003855R0001 Excitation system ABB
UNS2882A Excitation system ABB
HIEE205019R4 Excitation system ABB
UNS2980c-ZV4 Excitation system ABB
UNS2980c-ZV4 HIEE205019R4 ABB
HIEE205011R0002 Excitation system ABB
UNS3670A-Z V2Excitation system ABB
UNS3670A-Z V2 HIEE205011R0002
3BHE009949R0004 Excitation moduleABB
UNS4881b,V4Excitation moduleABB
UNS4881b,V4 3BHE009949R0004 ABB
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