Rotation principle of brushless DC permanent magnet motor
[Rolling principle of brushless DC permanent magnet motor] Mr. Z is engaged in automobile marketing business. Since the new energy pure electric vehicle has become popular, he has begun to have a strong interest in permanent magnet motors. He is looking for Ms. He wants to let Ms. Under this knowledge. Ms. explained to him the unique advantages of permanent magnet motors, and why most of the pure electric vehicles use permanent magnet synchronous motors, and rarely use brushless DC permanent magnet motors.
“Brushless DC permanent magnet motor?” Mr. Z’s face is awesome. It is also difficult for him. In order to deal with the business, he has to charge and understand only the permanent magnet synchronous motor. "As far as I know, the permanent magnet synchronous motor uses the frequency converter to adjust the speed. The frequency is added a little bit, and the motor will turn faster and faster. How does this brushless DC permanent magnet motor turn?" In order to make more money, this guy is almost ready to become a motor, so the so-called "three days are not seen when you look at each other!"
Permanent magnet motor speed regulation problem
As the friend Z said, the permanent magnet synchronous motor is regulated by variable frequency. Because the motor speed has a strict one-to-one correspondence with the power frequency, the permanent magnet synchronous motor has a very high rotational speed accuracy, and is particularly suitable for a pure electric vehicle with a very high speed regulation accuracy. The brushless DC permanent magnet motor is similar to a conventional DC motor and is regulated by changing the magnitude of the armature current.
