Resolver is a position sensor that is widely employed in motor servo systems under harsh working conditions. In this article, a novel axial flux resolver with a fractional-slot sinusoidal distributed winding configuration is developed, which has the advantages of a simple structure and convenient mass production. Sinusoidal distribution winding expands the optional range of pole–slot combinations, and its harmonic suppression capability is proposed and verified by the winding function approach (WFA). Furthermore, the magnetic equivalent circuit (MEC) model is formulated to analyze the impact of structural parameters on the induced voltage envelope, through which the optimal parameters on the resolver are developed. In terms of computation time and accuracy, the results of the MEC model under healthy and eccentric conditions are compared with the finite-element method (FEM). In addition, the antiaxial offset capability of the half-wave resolver is illustrated and verified. The effectiveness and superiority of the proposed resolver are illustrated and verified based on numerical simulations and experimental tests.

中文翻译：

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使用 3-D 磁等效电路模型和绕组函数方法改进轴向磁阻分解器的配置方案

旋转变压器是一种位置传感器，广泛应用于恶劣工作条件下的电机伺服系统。本文开发了一种新型分数槽正弦分布式绕组轴向磁通旋转变压器，具有结构简单、便于量产的优点。正弦分布绕组扩大了极槽组合的可选范围，提出并通过绕组函数法（WFA）验证了其谐波抑制能力。此外，制定了磁等效电路 (MEC) 模型来分析结构参数对感应电压包络线的影响，从而开发出旋转变压器的最佳参数。在计算时间和准确性方面，将 MEC 模型在健康和偏心条件下的结果与有限元法 (FEM) 进行了比较。此外，还说明并验证了半波旋转变压器的反轴偏移能力。基于数值模拟和实验测试说明和验证了所提出的旋转变压器的有效性和优越性。