This work introduces a novel slotted-type double-side linear resolver (L-Resolver) with toroidal windings. The proposed resolver exhibits robustness against air-gap asymmetry fault (AGF), making it accurate and reliable in both healthy and faulty scenarios. Its simple structure and toroidal windings result in a cost-effective design. Accuracy testing is conducted under various conditions, including different fault severities, and robustness is confirmed through extensive simulations. A flexible magnetic equivalent circuit (MEC) method is applied to model the resolver precisely while considering various scenarios. This approach offers greater flexibility and shorter processing times compared with the finite-element method (FEM). In the end, the effectiveness of the proposed resolver is validated through experimental results, further affirming its robustness. The proposed resolver is an excellent choice for using as an absolute linear position sensor, thanks to its simplicity, accuracy, and its robustness in the face of a common mechanical fault: AGFs.

中文翻译：

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具有环形绕组的新型稳健双面线性旋转变压器提案

这项工作介绍了一种带有环形绕组的新型开槽型双面线性旋转变压器（L-Resolver）。所提出的旋转变压器对气隙不对称故障（AGF）表现出鲁棒性，使其在健康和故障情况下都准确可靠。其简单的结构和环形绕组实现了具有成本效益的设计。精度测试是在各种条件下进行的，包括不同的故障严重程度，并通过广泛的模拟来确认鲁棒性。应用灵活的磁等效电路（MEC）方法对旋转变压器进行精确建模，同时考虑各种场景。与有限元方法 (FEM) 相比，这种方法提供了更大的灵活性和更短的处理时间。最后，通过实验结果验证了所提出的解析器的有效性，进一步肯定了其鲁棒性。所提出的旋转变压器是用作绝对线性位置传感器的绝佳选择，因为它简单、准确，并且在面对常见机械故障（AGF）时具有鲁棒性。