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Sensorless motor control for electro‑mechanical flight control actuators

Kowalski, Robert and Juchmann, Patrick (2023) Sensorless motor control for electro‑mechanical flight control actuators. CEAS Aeronautical Journal. Springer. doi: 10.1007/s13272-023-00682-x. ISSN 1869-5590.

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Official URL: https://link.springer.com/article/10.1007/s13272-023-00682-x


Electro-mechanical flight control actuators have become a viable option as a replacement for conventional hydraulic actuators in future more electric aircraft. A rotor angle measurement is generally required for field-oriented control of the electrical machine and usually obtained from a safety-critical resolver. It contributes, however, to a rising local hardware complexity with a negative impact on space allocation, weight, motor inertia, reliability, and cost. This paper investigates sensorless control strategies that might substitute the resolver with an accurate estimate value. A hybrid observer is implemented that allows position control without an angle sensor at all speeds. In the high speed domain, the extended electromotive force of the permanent magnet synchronous machine is used for angle estimation. In the low speed domain, including standstill, anisotropy properties of the motor are exploited by applying the alternating injection method. The performance of the control algorithm is evaluated on an aileron actuator test rig for a large civil aircraft.

Item URL in elib:https://elib.dlr.de/197614/
Document Type:Article
Title:Sensorless motor control for electro‑mechanical flight control actuators
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kowalski, RobertUNSPECIFIEDhttps://orcid.org/0000-0002-5458-3796UNSPECIFIED
Juchmann, PatrickUNSPECIFIEDhttps://orcid.org/0000-0002-3120-1820146060540
Date:25 September 2023
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Electro-mechanical actuator, EMA, Permanent magnet synchronous motor, PMSM, Primary flight control, Sensorless control, Alternating injection
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Aircraft Systems
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems
Institute of Flight Systems > Safety Critical Systems&Systems Engineering
Deposited By: Kowalski, Robert
Deposited On:06 Nov 2023 18:47
Last Modified:06 Nov 2023 18:48

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