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
2711-T10C20L1 PanelView Standard Operator terminal
1769-L16ER-BB1B CompactLogix 5370 Ethernet Controller
DKC11.3-100-7-FW Servo controller
DSTC190 57520001-ER connection unit
DSTC120 57520001-A Connection unit
DSAI110 57120001-DP analog input board
DSSB146 48980001-AP Battery module
DSSR116 48990001-FK boost voltage regulator
NTCF22 Terminal unit ABB
VE4022 KJ3243X1-BB1 Profibus module
IC695CHS007LT Slot 7 Universal backplane
IC695CPE305LT RX3i CPU
IC695PSD140LT Power module
5466-409 CPU module
8200-314 Digital Controller
ALR121-S00S1 Serial communication module
IC697PWR724F Power module
SR735-5-5-HI-485 feeder protection relay
3500/22-02-01-00 Transient data interface
3500/40-01-00 3500/40M front monitor
3500/92-0201-00 Communication gateway
TC-PCIC01 Controls the interface module
DS200GDPAG1AKF High frequency power supply board
DS200LDCCH1ANA Driver control/LAN communication board
DS200TCCBG88ED digital input/output board
TC-PRS021 Controls the processor module
TC-0DK161 Digital output PLC card
TC-FXX132 Experion 13 slot chassis
MC-TAOY22 80366177-175 Analog output board
MMS6823R Communication interface module
FBMSSW I/A series control card
XVME-660-716 The VMEbus PC is compatible with the processor module
XVME-675/19 PC/AT processor module
XVME-956/900 I/O Expansion bracket
MVI56E-GSC universal ASCII serial enhanced communication module
CE4003S2B6 Standard I/O terminal board
XVME-956/412 I/O Expansion bracket
CE4005S2B4 Standard I/O terminal board
3500/53-01 Overspeed detection module
80190-580-01-R drives the processor module
2711-B6C10 Operator terminal
3500/62-04-00 Process variable monitor
VMIVME-7645 vmebus board computer
MVME162-233 Dual-height VME module
DSAX110A 57120001-PC analog input/output board
9907-175 Load sharing module
Reviews
There are no reviews yet.