What are the classifications of permanent magnet synchronous motors
The current is divided into direct current and alternating current according to its form. Similarly, as a mechanical device using current, the permanent magnet synchronous motor has some specific properties of current, and these properties determine the classification of the motor.
? According to the back EMF, the permanent magnet synchronous motor can be divided into two major types of motors: sine wave and brushless DC. From the two classifications, the stability of the sine wave is far better than the brushless DC. This is because the current wave of the brushless DC is a square wave and the waveform of the anti-potential wave we are talking about is a trapezoidal wave, which makes the compatibility and stability of the two have a certain difference, thus highlighting the sine wave. The stability of the energy; so we must choose a sine wave permanent magnet synchronous motor in the construction of important places and important sections, and use brushless DC permanent magnet synchronous motor in general simple and secondary construction, for example When using household appliances and office equipment.
Another classification is the classification according to the difference in the installation structure of the permanent magnet synchronous magnet of the permanent magnet synchronous motor. Generally speaking, we divide it into three categories: surface-mounted, interpolated, and embedded. In these, the inside surface is widely applied to brushless DC motors, while the embedded type is used in high speed applications.
