摘要：介绍U型无铁心永磁直线同步电机的基本结构，并对该电机内部磁场进行解析计算，得出了磁场的解析表达式,进而推导得出绕组相电动势与电磁推力的解析表达式；利用Matlab GUI用户图形界面，设计和开发了基于解析算法U型无铁心永磁直线同步电机的计算机辅助设计软件。采用实际的算例导入到开发的软件当中，验证了软件的准确性与实用性。
关键词： Matlab GUI；永磁同步电机；直线电机；气隙磁场；计算机辅助设计
Abstract: The basic structure of Ushaped ironless permanent magnet linear synchronous motor was introduced in this paper. The internal magnet field was deduced through analytical calculation and its analytic expression was given. The analytic expressions of phase backEMF and electromagnetic thrust were also deduced. The computeraided design software was designed and developed on the basis of analytical algorithm about Ushaped ironless permanent magnet linear synchronous motor through the Matlab GUI. Rightness and superiority were confirmed by taking an actual example through this software.
Key words: Matlab GUI；PMSM；linear motor；airgap magnetic field；CAD