Brief Introduction

Three phase permanent magnet synchronous motor is consist of two key components, a multipolarized permanent magnet rotor and a stator with appropriately designed windings. During operation, the rotating multipolarized permanent magnet rotor creates a time-dependent magnetic flux in the air gap between the rotor and the stator. This flux generates an alternating current voltage across the stator winding terminals, thereby forming the basis for generating electricity. The permanent magnet synchronous motors discussed herein use a toroidal permanent magnet mounted on an iron magnetic core. Internal permanent magnet synchronous motors are not considered herein. Since it is very difficult to embed magnets into a plated ferromagnetic core, by using magnets of appropriate thickness (500 μm) and high performance magnetic materials in the rotor and stator cores, the air gap can be made very large (300 to 500 μm) without significant loss of performance, which allows the stator windings to take up a certain amount of space in the air gap, thus greatly simplifying the manufacture of permanent magnet synchronous motors.

A permanent magnet synchronous motor is a synchronous motor that uses permanent magnets to establish an excitation field, with a stator that generates a rotating magnetic field and a rotor made of permanent magnet material. A synchronous motor requires a DC magnetic field to achieve energy conversion, and the DC current that generates this field is called the motor's excitation current.

Permanent magnet brushless motors include two types of permanent magnet brushless DC motors and permanent magnet brushless AC motors, both of which require variable frequency power supply for operation as a motor. The former requires only a square wave inverter for power supply, while the latter requires a sine wave inverter for power supply.

Main Technical Parameters

Outline Dimension

Technical Data