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
METSO A413665 Electric energy measurement module
METSO A413325 Digital output module
METSO A413654 Controller module
METSO A413110 Thermocouple module
METSO A413160 Relay module
METSO A413144 Thermal resistance input module
METSO A413146 Programmable controller
METSO A413152 Binary input module
METSO A413240A Communication signal board
METSO A413150 Input interface module
METSO A413140 Digital input module
METSO A413111 Input/Output module
METSO A413125 Input/Output module
NI PXI-1031 Communication module
PXI-8186 NI PXI Embedded controller
ABB 3HAC031683-004 cable
FISHER-ROSEMOUNT KJ3001X1-BJ1 Thermal resistance input module
Emerson Delta V KJ1501X1-BC1 CPU module
FISHER-ROSEMOUNT KJ2002X1-BA1 Motion control module
Emerson Delta V KJ3004X1-BA1 Programming controller
FISHER-ROSEMOUNT KJ3242X1-BA1 Communication network card
Emerson Delta V KJ3002X1-BC1 Communication extension module
FISHER-ROSEMOUNT KJ3002X1-BB1 Relay output module
Emerson Delta V KJ3001X1-BB1 Host module
Emerson Delta V KJ3004X1-BA1 Digital volume signal board module
EMERSON KJ2002X1-CA1 I/O modules
TRICONEX 3623T Controller module
LDSYN-101 3BHE005555R0101 ABB Dc module
LDMUI-001 61320946C ABB Control system module
IMBLK01 ABB I/O communication modules
4D33900G19 WESTINGHOUSE Servo driver
5A26304G02 WESTINGHOUSE Digital quantity module
OMRON NE2A-END relay
4135A HIMA Safety relay
TSXP571634M Schneider Ethernet module
ABB HIEE405246R0002 UNS 0867 A-P V2 DCS system module
SST-PB3-PCU SST Digital quantity module
Parker GV6K-U6E Servo Drive / Controller
Fireye BLL510 Display screen
FEMA traffic switch ASW454
1794-ASB A-B Controller/inverter
1756-EN2TR A-B Analog module
250Х56R 2RRE45 ECOFIT High volume turbofan
8V1180.00-2 B&R PLC controller
6SN1118-0DJ21-0AA1 SIEMENS Digital input card
6GK7542-5FX00-0XE0 Communication module SIEMENS
6ES7341-1CH02-0AE0 SIEMENS Redundant power modules
5PC910.SX02-00 B&R CPU controller
3RT1916-1BB00 SIEMENS relay
Reviews
There are no reviews yet.