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Anisotropy Identification for Electromechanical Flight Actuators With Sensorless Rotor Angle Detection

Kowalski, Robert and Windelberg, Jens (2020) Anisotropy Identification for Electromechanical Flight Actuators With Sensorless Rotor Angle Detection. IEEE Transactions on Transportation Electrification, 6 (4), pp. 1448-1456. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TTE.2020.3008302. ISSN 2332-7782.

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Official URL: https://ieeexplore.ieee.org/document/9137395


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).

Item URL in elib:https://elib.dlr.de/137061/
Document Type:Article
Title:Anisotropy Identification for Electromechanical Flight Actuators With Sensorless Rotor Angle Detection
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kowalski, RobertRobert.Kowalski (at) dlr.dehttps://orcid.org/0000-0002-5458-3796
Windelberg, JensJens.Windelberg (at) dlr.dehttps://orcid.org/0000-0002-9249-2967
Date:December 2020
Journal or Publication Title:IEEE Transactions on Transportation Electrification
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1109/TTE.2020.3008302
Page Range:pp. 1448-1456
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Series Name:Special Issue on More Electric Aircraft
Keywords:Concentrated windings, electromechanical actuator (EMA), multiple saliencies, permanent magnet synchronousmotor (PMSM), sensorless control
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Safety Critical Systems and Systems Engineering
Institute of Flight Systems
Deposited By: Kowalski, Robert
Deposited On:05 Nov 2020 14:26
Last Modified:09 Nov 2020 08:01

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