Description
SH070/60020/0/0/00/00/10/11/00 ELAU servo driver/motor
SH070/60020/0/0/00/00/10/11/00 ELAU servo driver/motor
Module Clips Drive controller servo moto
SH070/60020/0/0/00/00/10/11/00A motor is a device that converts electrical energy into mechanical energy. SH070/60020/0/0/00/00/10/11/00 It utilizes an energized coil (i.e. stator winding) to generate a rotating
magnetic field and act on the rotor (such as a squirrel cage closed aluminum frame) to form a magneto electric rotational torque. Electric motors are divided into DC
motors and AC motors according to the different power sources used. Most of the motors in the power system are AC motors, SH070/60020/0/0/00/00/10/11/00 which can be synchronous motors or
asynchronous motors (the stator magnetic field speed of the motor does not maintain synchronous speed with the rotor rotation speed). An electric motor is mainly
composed of a stator and a rotor, SH070/60020/0/0/00/00/10/11/00 and the direction of the force acting on the energized wire in the magnetic field is related to the direction of the current and the direction
of the magnetic induction line (magnetic field direction). SH070/60020/0/0/00/00/10/11/00 The working principle of an electric motor is that the magnetic field exerts a force on the current, causing the motor to rotate.
Contact: Mr. Lai
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The back EMF waveform is different:
BLDC: Approximate trapezoidal wave (ideal state);
PMSM: sine wave (ideal state);
The three-phase current waveforms are different:
BLDC: Approximate square wave or trapezoidal wave (ideal state);
PMSM: sine wave (ideal state);
Differences in control systems:
BLDC: usually includes position controller, speed controller and current (torque) controller;
PMSM: Different control strategies will have different control systems;
Controls are different:
BLDC: 120-degree square wave current, using PWM control;
PMSM: Positive Xuan wave current, controlled by SPWM SVPWM.
However, in actual control, brushless DC can also be controlled by FOC, and permanent magnet synchronous motors can also be controlled by square waves.
Just like the controllers of electric vehicles, I have disassembled and studied three or four. The interfaces are all the same, the control chips are different, and of course the control algorithms are also different. Electric vehicles controlled by sine waves have very low sound when starting and running, and there is no jitter during operation; but electric vehicles controlled by square waves have very obvious sounds, and the jitter during operation can also be felt. The judder is due to definite torque ripples.
Motors controlled by square waves have higher power efficiency, because motors controlled by sine waves have a lower effective voltage.
4. Control technology of permanent magnet synchronous motor
Permanent magnet synchronous motors and brushless DC motors can be operated using the same control method.
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1.Has been engaged in industrial control industry for a long time, with a large number of inventories.
2.Industry leading, price advantage, quality assurance
3.Diversified models and products, and all kinds of rare and discontinued products
4.15 days free replacement for quality problems
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