永磁游标电机的研究及其优化

发布时间：2018-01-13 10:25

本文关键词：永磁游标电机的研究及其优化　出处：《微特电机》2017年11期 　论文类型：期刊论文

【摘要】：针对双极性表贴式永磁游标(SPMV)电机永磁体利用率低、涡流损耗大等问题,采用单极性转子的电机结构,并在调磁齿槽中内嵌一层极性相同的永磁体,以提高电机性能。使用Ansoft软件对双极性SPMV电机的理论推导的正确性进行验证,并对比分析了双极性SPMV电机和单极性IPMV电机,得出单极性IPMV电机永磁体利用率高、损耗小,但它的转矩下降约12 N·m,比双极性SPMV电机减小约23.1%。为提高转矩,在单极性IPMV电机的调磁齿槽中内嵌永磁体并对嵌入的永磁体厚度进行优化,得出厚度为4 mm时,转矩比双极性SPMV电机和单极性IPMV电机的分别提高约26 N·m和38 N·m,增加了约50%和95%,永磁体涡流损耗比双极性SPMV电机减小约20 W,降低了10%。
[Abstract]:Aiming at the problems of low utilization ratio of permanent magnet and large eddy current loss in bipolar permanent magnet Vernier permanent magnet (SPMV) motor, the unipolar rotor motor structure is adopted and a layer of permanent magnet with the same polarity is embedded in the tooth slot of the adjusting magnetic field. In order to improve the performance of the motor, the correctness of the theoretical derivation of the bipolar SPMV motor is verified by using Ansoft software, and the bipolar SPMV motor and the unipolar IPMV motor are compared and analyzed. The results show that the unipolar IPMV motor has high utilization rate of permanent magnet and low loss, but its torque is reduced by about 12 N 路m, which is about 23.1m lower than that of bipolar SPMV motor. A permanent magnet is embedded in the gear slot of a unipolar IPMV motor and the thickness of the embedded permanent magnet is optimized, and the thickness of the permanent magnet is obtained when the thickness is 4 mm. Compared with the bipolar SPMV motor and the unipolar IPMV motor, the torque increases about 26 N 路m and 38 N 路m, and increases about 50% and 95% respectively. The eddy current loss of permanent magnet is about 20 Ws less than that of bipolar SPMV motor, which is 10% lower than that of bipolar SPMV motor.
【作者单位】：河北工业大学;
【基金】：天津市自然科学基金项目(15JCYBJC16400) 国家自然科学基金青年科学基金项目(51607157)
【分类号】：TM351
【正文快照】： 0引言由于传统永磁电机的功率密度大和效率高,因此被运用在很多行业。在有些场合,永磁电机需要工作在直驱状态下。直驱永磁电机有很多突出的优点:噪声低、效率高和响应速度快[1-2]。然而,由于极对数较多,使得直驱永磁电机体积大,重量高。为了克服以上缺点,有学者提出一种新型

【相似文献】