Braking method of brushless motor
Brushless motors do not have additional starting windings on the rotor like synchronous motors that start under heavy loads under variable frequency speed regulation, nor do they produce oscillations and loss of step during sudden load changes. What is the braking method of this device? Here is the editor's summary:
The energy consumption of braking consumes the kinetic energy of the brushless motor on the external braking resistor. The energy consumption of short-circuit braking of the stator winding of the motor is more conducive to reducing the heating of the motor. However, short-circuit braking does not require any hardware modification, and its outstanding advantage is simplicity and convenience. Therefore, we mainly focus on studying short circuits.
By changing the alternating frequency and waveform of the current wave input to the brushless motor stator coil, a magnetic field is formed around the winding coil rotating around the geometric axis of the motor, which drives the permanent magnet steel on the rotor to rotate and the motor to rotate. The performance of a motor is related to factors such as the number of magnets, flux intensity of magnets, and input voltage of the motor, and is more closely related to the control performance of a brushless motor.
Brushless motors are used to control the on/off of various power transistors in the inverter bridge, generating continuous torque. Widely used in recording studios, video recorders, electronic instruments, and automated office equipment. I hope the above content is helpful to you.
Editor: Nancy
The energy consumption of braking consumes the kinetic energy of the brushless motor on the external braking resistor. The energy consumption of short-circuit braking of the stator winding of the motor is more conducive to reducing the heating of the motor. However, short-circuit braking does not require any hardware modification, and its outstanding advantage is simplicity and convenience. Therefore, we mainly focus on studying short circuits.
By changing the alternating frequency and waveform of the current wave input to the brushless motor stator coil, a magnetic field is formed around the winding coil rotating around the geometric axis of the motor, which drives the permanent magnet steel on the rotor to rotate and the motor to rotate. The performance of a motor is related to factors such as the number of magnets, flux intensity of magnets, and input voltage of the motor, and is more closely related to the control performance of a brushless motor.
Brushless motors are used to control the on/off of various power transistors in the inverter bridge, generating continuous torque. Widely used in recording studios, video recorders, electronic instruments, and automated office equipment. I hope the above content is helpful to you.
Editor: Nancy
