In an electrical system, synchronous motors are the most widely used steady-state 3-phase AC motors, which convert electrical energy into mechanical energy. This type of motor operates at synchronous speed, which is constant and it is synchronous with the supply frequency and the period of rotation is equal to the integral no. of AC cycles. That means the speed of the motor is equal to t...

The main difference between a permanent magnet synchronous motor (PMSM) and an induction motor is in the rotor. Studies1 show that the PMSM has an efficiency of approximately 2% more than a highly efficient (IE3) induction electric motor, provided that the stator has the same design, and the same variable frequency drive is used for control. In this case, permanent magnet synchronous electric...

Most pumps and fans operating in industrial and commercial applications are currently driven by AC induction motors. “ACIM”, which stands for “alternating current induction motor”, is an asynchronous type of motor that relies on electric current to turn the rotor. Torque is produced by electric current in the rotor. The electric current is generated through electromagnetic induction from the magne...

Significant energy saving effect Permanent magnet synchronous variable air compressor is always running in the loaded state, no uninstall run phenomenon, and this no power wastage. Permanent magnet synchronous motor efficiency is very high compared with ordinary motor efficiency by at least 2%, with less power consumption and greater output torque, energy-saving effect is remarkable, fee energy co...