新型磁阻式旋转变压器的初步设计优化  

Preliminary Design Optimization of New Type of Variable-Reluctance Resolver

作　　者：王晓远[1] 冀睿琳 陈博[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2015年第11期989-994,共6页Journal of Tianjin University：Science and Technology

基　　金：国家高技术研究发展计划(863计划)资助项目(2011AA11A259)

摘　　要：以磁阻式旋转变压器的基本结构为基础,针对进一步提高旋转变压器精度的问题,提出一种定转子结构的优化方法.研究转子形状对旋变气隙磁通密度的影响,并总结出最小气隙长度及气隙比例系数这两个关键参数的选取规律.在定子结构优化中,讨论了定子齿上开辅助槽时,槽深对磁路及优化效果的影响,结果表明:转子的气隙比例系数和最小气隙长度分别取1.6和0.6,mm时优化效果最好,定子铁芯上引入辅助槽设计有效降低了低次谐波,使优化后的旋转变压器谐波含量明显减少,输出电压波形更具正弦性.Using the basic structure of reluctance resolver as the cornerstone,a method was presented for optimizing the structure of the stator and rotor in order to improve the accuracy of resolver. Rules of selecting two key factors（the minimum air gap length and the gap scaling factor）were established by analyzing the influence of shape of rotor on resolver air gap flux density. In the stator structural optimization process,how the depth of the auxiliary slot on the stator teeth can impact the magnetic circuit and optimization results was also taken into consideration. Research shows that the best optimization result appears while the rotor＇s air gap scaling factor is 1.6 and its minimum air gap length is 0.6 mm. Introducing an auxiliary slot design on the stator core can effectively reduce the low-order harmonics,significantly reduce rotary transformer＇s harmonic content and produce more sinusoidal output voltage waveform.

关 键 词：磁阻式旋转变压器 转子 辅助槽 优化 

分 类 号：TM383.2[电气工程—电机]