Design And Manufacture Of Permanent Magnet Synchronous Motor

With the development of the permanent magnet material and relevant technology, perf ormance of permanent magnet synchronous motors (a new synchronous motor call as PM SM structured by rare-earth permanent magnet) enhance rapidly. PMSM has character of simple structure, small size, less weight, high efficiency, high factor, no problem of rotor heat, better over loading, lesser moment of inertia and torque ripple. Compared to the t raditional electrical excitation synchronous motor, PMSM require no electrical excitation, no brush and slip ring. Thus, PMSM has the advantage of simple structure, use handily and high reliability.The development of the Permanent magnet industry has significant meaning of the str ategy, which is relative to electronic information, mining, communication technology, ener gy sources and traffic nearly, the phylogeny of the permanent magnet material is the im proved history of the performance. Through describe the capability of the permanent ma gnet material, selecting the way of the material are analyzed.The paper analysis the method of improve work characteristic. Such as explain str ucture of PMSM, illustrate process theory of AC PMSM and working electromagnetic parameter. Design process of a PMSM is shown In brief. Base on given conditions, by using the advanced magnetic scomputer Program, electromagnetic parameter, slot form an d dimensions are calculated. Select special material depend on calculated results and than validate those result.Special manufacture process of PMSM depends on design structure. The special proc ess includes special processes, Such as transport and using of permanent magnet materia1, setting rotor of permanent magnet and assembly. Applying Peculiar procedure, equipme nts and tools are illustrated tersely. Meanwhile, Experience of big PMSM manufacturing process and measuring technology are accumulated Through expatiating PMSM type test, test procedure, test result and analysing performance.