Brief Introduction

PMSM electric motor can be mounted integrally on the axle to form an integral direct drive system, i.e., an axle is a drive unit, eliminating the need for a gearbox. The advantages of permanent magnet synchronous motors are as follows:

1. The permanent magnet synchronous motor itself has high power efficiency as well as high power factor;

2. The permanent magnet synchronous motor generates little heat, so the motor cooling system is simple in structure, small in size and low in noise;

3. The system adopts fully closed structure, no transmission gear wear, no transmission gear noise, lubricant-free, maintenance-free;

4. Permanent magnet synchronous motor allows large overload current, reliability is significantly improved;

5. The whole transmission system is light in weight, and the unsprung weight is also lighter than that of the traditional wheel-axle transmission, and the power per unit weight is large;

6. Due to the absence of gearbox, the bogie system can be arbitrarily designed: such as flexible bogie, single-axle bogie, so that the train power performance is greatly improved.
 

7. Due to the use of permanent magnetic material poles, especially the use of rare-earth metal permanent magnets (such as neodymium iron boron, etc.), its high magnetic energy product, you can get a high air-gap flux density, so in the same capacity, the motor's size is small, light weight.
 

8.The rotor has no copper and iron losses, and there are no friction losses in the collector ring and brushes, so the operating efficiency is high.

9. Small moment of inertia, large allowable pulse torque, high acceleration, good dynamic performance, compact structure, reliable operation

Main Technical Parameters

Outline Dimension

Technical Data