Electric Motors for e-Vehicles PMSM Motor & AC Motors

Description

Electric Motors for e-Vehicles PMSM

The permanent magnet synchronous motor provides excitation, which makes the motor structure simple, reduces the processing and assembly costs, and eliminates the collector ring and brush which are prone to problems, and improves the reliability of the motor operation. And because there is no excitation current and no excitation loss, the efficiency and power density of the motor are improved. Permanent magnet synchronous motor is composed of stator, rotor and end cover. The stator is basically the same as the ordinary induction motor, and adopts the laminated structure to reduce the iron consumption of the motor during operation. The rotor can be made of solid or laminated. The armature winding can adopt the centralized integral winding, but also the distributed short distance winding and the unconventional winding.

Characteristics of PMSM

• High power efficiency and high power factor.
• The cooling system has simple structure, small volume and low noise.
• No transmission gear wear, no transmission gear noise, no lubricating oil, no maintenance.
• The allowable overload current is large, and the reliability is significantly improved.
• Light weight, high power per unit weight.
• The permanent magnet material pole is adopted, and the motor is small in size and light in weight.
• High acceleration, good dynamic performance, compact structure and reliable operation can be obtained.

Electric Motors for e-Vehicles AC Motors

AC asynchronous motor is a kind of electric drive device which converts electrical energy into mechanical energy. It is mainly composed of the stator, the rotor and the air gap between them. After the stator winding is connected to the three-phase AC power supply, the rotating magnetic field is generated and the rotor is cut to obtain the torque. Three-phase AC asynchronous motor has the advantages of simple structure, reliable operation, cheap price, strong overload capacity, convenient use, installation and maintenance, and is widely used in various fields.

Characteristics of AC Motors

• The hardware is advanced and reliable.
• The software function is perfect and flexible.
• Comprehensive and accurate control functions.
• I/O and communication interfaces are abundant and complete.
• High motor power and long life.
• Can be directly from the mains or inverter power supply.
• High versatility, can provide a variety of cooling type, protection level and various models.
• Outstanding motor efficiency, best cooling method.
• Ensure lower operating costs.
• The safe and reliable operation of the whole motor system is ensured.