Comprehensive Benefit Analysis of Permanent Magnet Synchronous Motor Replacing Asynchronous Motor
Compared with asynchronous motors, synchronous motors have the advantages of high power factor, high efficiency, measurable rotor parameters, large air gap between stator and rotor, good control performance, small size, light weight, simple structure, high torque/inertia ratio, etc. It has been widely used in petroleum, chemical, textile, mining, vehicles, CNC machine tools, robotics, and aerospace. It is facing high power (high speed, high torque), high functionality and miniaturization. development of.
The permanent magnet synchronous motor is composed of a stator and a rotor, and the stator is the same as the asynchronous motor, and is composed of a three-phase winding and a stator core. Pre-magnetized (magnetized) permanent magnets are mounted on the rotor, which can create a magnetic field in the surrounding space without the need for additional energy, which simplifies the motor structure and saves energy. This paper starts from the characteristics of permanent magnet synchronous motor and combines the practical application to expound the comprehensive benefits of permanent magnet synchronous motor.
