摘要：将采用分数槽集中绕组的多极少槽永磁同步电机应用于电梯曳引机，使其布置更加灵活。结合电机结构选型和电机槽极数配合的选取，设计了一种小长径比的外转子24极27槽永磁同步外转子无齿轮曳引机。利用Ansoft有限元专业分析软件建立永磁同步电机的有限元模型，使用Matlab对电机空载磁场分布、空载电动势及其谐波成分进行了分析计算，分析了电机的齿槽转矩和负载转矩。分析结果表明所设计的电机能够满足设计和工程实际要求。
关键词：永磁电机；曳引机；电磁场分析
Abstract: Permanet magnet motor with the combining of multipole and lessslot is applied to the elevator traction machine, to make it arrange flexibly through fractionalslot and concentrated winding. In this paper, a 24 poles27 slots permanent magnet outrotor motor with small lengthdiameter ratio for the elevator dray machine was designed, considering the construction and the combining of multipole and lessslot. The analysis of noload magnetic field and noload electromotive force was presented by the finite element software Ansoft, and harmonic analysis was presented by Matlab. The cogging torque and loading torque were analyzed. The validity of the design is certificated by the result of annlysis.
Key words: permanent magnet motor；elevator traction machine; analysis of electromagnet field