The Design Study Of Fine Dynamic Performance Rare Earth Permanent Magnet Synchronous Motor

Rare earth permanent magnet synchronous motor(RPMSM) is a new-stylepermanent magnet motor that come forth in the 1970s. Because it has the excellence ofhigh efficiency, smaller bulk, lighter weight, finer characteristic etc, RPMSM turnsinto the application of aviation, spaceflight and navigation. The configuration ofRPMSM is very complex, so it is very hard to get accurate calculation for the RPMSM,and the design of RPMSM is quite intricacy. In addition, some special electromagneticprocess and some specialties problems is the difficulty of the design of RPMSM, forexample, the optimize design of the shape and dimension of the magnetic pole, thedemagnetization of the magnet.In this paper, based on the characteristic of the configuration and magnetic fieldof RPMSM, the electromagnetism design of RPMSM is in-depth researched. Thedesign process, the measure to improve the dynamic performance and the calculatingprecision of RPMSM are studied.This paper presents the various configuration and its traits of RPMSM, analyzethe characteristic of the magnetic field and the principle, and discuss the characteristicof the steady and instantaneous state of RPMSM.The design method and its trait of RPMSM are mainly researched, the process ofthe electromagnetic design is listed, the measure and method to improve the dynamiccharacteristic of RPMSM in design are in-depth researched. And used the Visual Basic6.0 as a tool, developed the electromagnetism design software to improve theefficiency of design.The electromagnetic field of the design sample have been analyzed in detail bythe finite element analysis software Maxwell 2D. The result of the analysis is used tocheck back the calculation result of the electromagnetism design. The result indicatesthat the electromagnetism design is appropriate and that the performance is excellent toaccord with the request of design.