Six major advantages of permanent magnet synchronous motors

We have introduced in detail the components and advantages and disadvantages of permanent magnet synchronous motors before. Compared with general AC variable frequency motors, permanent magnet synchronous motors have the advantages of high efficiency, high torque to inertia ratio, high energy density, etc., and are also environmentally friendly and low-carbon. Carbon motor. So today the editor will introduce the six major advantages of permanent magnet synchronous motors. I hope everyone can have a better understanding of this motor after reading it.

The permanent magnet motor is a device that uses permanent magnets to establish an excitation magnetic field to achieve electromechanical energy conversion. It is similar to the electrically excited synchronous motor, that is, they both rotate at synchronous speed, and are also called permanent magnet synchronous motors.

The motors produced by permanent magnet synchronous motor manufacturers are of reliable quality. The motor can be installed integrally on the axle to form an overall direct drive system, that is, one axle is a drive unit, eliminating the need for a gearbox.

1. Because the permanent magnet synchronous motor does not have a gearbox, the bogie system can be designed at will: such as a flexible bogie and a single-axis bogie, thereby greatly improving the train's dynamic performance.

2. The permanent magnet synchronous motor itself has high power efficiency and high power factor.

3. The allowable overload current is large and the reliability is significantly improved.

4. The entire transmission system of the permanent magnet synchronous motor has the advantage of being light in weight, and the unsprung weight is also lighter than that of the traditional axle transmission, and the power per unit weight is large.

5. The permanent magnet synchronous motor system adopts a fully enclosed structure, with no transmission gear wear and noise, no lubricating oil, and no maintenance.

6. It generates little heat, so the cooling system of the motor has the advantages of simple structure, small size, and low noise.

For permanent magnet synchronous motors, especially earth permanent magnet synchronous motors, compared with electric excitation synchronous motors, the former has the characteristics of compact structure, small size, light weight, etc., and the size and structure of permanent magnet motors are flexible and diverse, and can be expanded into come up with various structural forms. Because the permanent magnet motor eliminates the electric excitation system, the efficiency of the motor is improved, and the motor appears to have a simplified structure and reliable operation.