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Anisotropy identification for electro-mechanical flight actuators with sensorless rotor angle detection
IEEE Transactions on Transportation Electrification ( IF 7 ) Pub Date : 2020-12-01 , DOI: 10.1109/tte.2020.3008302
Robert Kowalski , Jens Windelberg

Electromechanical actuation of flight control surfaces based on permanent magnet synchronous motors (PMSMs) becomes an important technology for more electric aircraft architectures. Demanding requirements for fault tolerance and small space envelopes make sensorless control modes a promising technology in this field. However, sensorless rotor angle detection is not always feasible because it requires differential magnetic anisotropy properties of the motor. This article investigates this prerequisite for a PMSM with flux concentrating magnet topology and fractional slot concentrating windings. A nonlinear model that approximates inductance with respect to current and in particular rotor angle variations is identified. The observable anisotropic operating domain is conservatively determined through testing and finite element analysis (FEA).

中文翻译:

具有无传感器转子角度检测的机电飞行执行器的各向异性识别

基于永磁同步电机 (PMSM) 的飞行控制面的机电驱动成为更多电动飞机架构的重要技术。对容错和小空间外壳的苛刻要求使无传感器控制模式成为该领域的一项有前途的技术。然而,无传感器转子角度检测并不总是可行的,因为它需要电机的微分磁各向异性特性。本文研究了具有磁通集中磁体拓扑结构和分数槽集中绕组的 PMSM 的先决条件。确定了一种非线性模型,该模型根据电流和特别是转子角度变化来近似电感。可观察的各向异性操作域是通过测试和有限元分析 (FEA) 保守地确定的。
更新日期:2020-12-01
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