![Permanent Magnet Synchronous High-Efficiency Motor](//www.micstatic.com/athena/img/transparent.png)
![Permanent Magnet Synchronous High-Efficiency Motor](//www.micstatic.com/athena/img/transparent.png)
![Permanent Magnet Synchronous High-Efficiency Motor](//www.micstatic.com/athena/img/transparent.png)
![Permanent Magnet Synchronous High-Efficiency Motor](//www.micstatic.com/athena/img/transparent.png)
![Permanent Magnet Synchronous High-Efficiency Motor](//www.micstatic.com/athena/img/transparent.png)
![Permanent Magnet Synchronous High-Efficiency Motor](//www.micstatic.com/athena/img/transparent.png)
The permanent magnet synchronous motors (PMSM) are similar to the traditional AC synchronous motors, but the field, in this case, is excited by permanent magnets that create sinusoidal back EMF. They are similar to typical rotating electric motors that consist of a rotor and a stator. However, permanent magnet synchronous motors use just a rotor, which creates the magnetic field.
Construction
Permanent magnet synchronous motors are very efficient, brushless, secure, very fast, and offer high dynamic performance. Due to their advantages, permanent synchronous motors have many applications in various industries. Many manufacturers now produce permanent magnet synchronous motors with varying specifications for different applications. Note that AC synchronous motors are the most widely-used steady-state 3-phase AC motors in electrical systems, where they help to convert electrical energy into mechanical energy. The motors operate at a synchronous speed that is constant and synchronous with the supply frequency of AC cycles. Since AC synchronous motors have a speed of the motor that is equal to the rotating magnetic field, they are mostly used in power systems to improve the power factor of the system.