What are the advantages and disadvantages of permanent magnet synchronous motors, and what are the developments?
The operating principle of the permanent magnet synchronous motor is the same as that of the electric excitation synchronous motor, but it replaces the excitation winding of the latter with the magnetic flux provided by the permanent magnet, which makes the motor structure simpler. In recent years, the improvement of the performance of permanent magnet materials and the advancement of power electronics technology have promoted the development of new principles and new permanent magnet synchronous motors, which have greatly promoted the development of motor product technology, variety and function. Some permanent magnet synchronous motors Has formed a series of products, its capacity from small to large, has reached megawatt level, the scope of application is more and more wide; its status is more and more important, from military to civilian, from special to general rapid expansion, not only in the micro-motor It is dominant and has shown great vitality in electric propulsion systems.
