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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IC695ETM001 GE Single slot module
IC695EDS001 GE External station module
IC695CRU320 GE Redundant processor
IC695CPU320 GE The central processing unit
IC695CPU315 GE Central processing unit
IC695CPU310 GE Programmable automation controller
IC695CPK400 GE Programmable automation controller
IC695CPE400 GE Central processing unit (CPU) module
IC695CPE330 GE Automation controller
IC695CPE310 GE Central processor module
IC695CPE305 GE Central processing unit
IC695CPE302 GE controller
IC693DSM302 GE Motion controller
IC693DNS201 GE Communication module
IC693DNM200 GE Main control module
IC693CPU374 GE Programmable Logic Controller (PLC) module
IC693CPU372 GE Ethernet communication module
IC693CPU370 GE Programmable logic controller
IC693CPU367 GE Central processing unit
IC693CPU366 GE Network CPU main module
IC693CPU364 GE Single slot central processing unit
IC693CPU363 GE Programmable logic controller
IC693CPU360 GE The CPU module is embedded in the backplane
IC693CPU352 GE Single slot CPU module manufactured by PLC system
IC693CPU351 GE CPU module
IC693CPU350 GE controller
IC693CPU341 GE Single-slot CPU
IC693CPU340 GE Expansion base plate
IC693CPU331 GE The CPU module is embedded in the backplane
IC693CPU323 GE Base Turbo CPU in slot 10
IC693CPU321 GE 10-slot I/O backboard with embedded CPU
IC693CPU313 GE Embedded CPU
IC693CPU311 GE 5 Slot Embedded CPU base rack
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DSDI-110AV1-3BSE018295R1 ABB Digital input pad
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DAI04 ABB Independent channel isolation
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