半波结构轴向磁阻式旋转变压器电磁模型与参数计算  

Electromagnetic Modeling and Parameter Computation of Half-wave Axial Reluctance Resolver

作　　者：冉晓贺 杨玉磊 尚静[1] 赵猛[1] RAN Xiaohe;YANG Yulei;SHANG Jing;ZHAO Meng(School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,Heilongjiang Province,China)

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,黑龙江省哈尔滨市150001

出　　处：《中国电机工程学报》2022年第9期3443-3451,共9页Proceedings of the CSEE

摘　　要：传统磁阻式旋转变压器输出位置信号精度低、转子加工工艺复杂。定转子极槽配合受到强度限制,整数槽绕组形式难以实现。鉴于此,首先提出一种半波结构轴向磁阻式旋转变压器,基于绕组函数法和有限元法对其进行设计,定量分析结构参数对输出电势精度的影响,有效降低加工工艺难度并提高位置信号输出精度。其次,为了满足转子极数要求,考虑定子机械强度限制,设计一种分数槽正弦型分布绕组结构,提高输出信号容错能力,有效降低绕组层的位置敏感性。最后,基于有限元仿真平台和自制测试系统对正弦型旋转变压器进行仿真和实验研究,结果表明半波转子结构能够显著提升旋转变压器稳态性能,对提高位置检测精度具有指导意义。Traditional reluctance resolver suffers from low output position signal accuracy and complex rotor machining process. Due to the strength limitation of the stator and rotor pole slot matching, it is difficult to realize the integral slot winding. In light of this, based on the winding function approach and finite element method, this article first proposed a half-wave structure axial reluctance resolver. The structural parameters’ influence on the output potential accuracy was quantitatively analyzed, which can effectively reduce the difficulty of machining process and improve the accuracy of position signal output. Secondly, to meet the requirements of the rotor pole pairs, considering the stator mechanical strength limitation and manufacturing cost, a fractional slot sinusoidal distributed winding structure was designed, which can improve the signal winding output potential fault tolerance ability and effectively reduce the winding layer position sensitivity.Finally, using the finite element simulation platform and the self-designed experimental system, the simulation and experimental study of one-pair sinusoidal resolver were conducted. The results illustrate that the proposed rotor structure can significantly improve the steady-state performance of the resolver which has guiding significance for improving the position detection accuracy.

关 键 词：半波结构轴向磁阻式旋转变压器 绕组函数法 三维时步有限元分析 正弦型分布绕组 高位置检测精度 

分 类 号：TM383.2[电气工程—电机]