Sensorless position control of an axial flux-switching permanent-magnet motor based on high-frequency pulsating voltage vector injection

Flux-Switching Permanent-Magnet (FSPM) machines are novel brushless machines with magnets in the stator, which have recently undergone intensive research due to their novel features, such as simple and robust rotor, flux focusing effect, sinusoidal phase back-EMF, high torque/power density, and high...

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Bibliographic Details
Published inScientia Iranica. Transaction D, Computer science & engineering, electrical engineering Vol. 30; no. 3; pp. 1097 - 1105
Main Authors Arand, S Jamali, Fard, J Rahmani
Format Journal Article
LanguageEnglish
Published Tehran Sharif University of Technology 01.05.2023
Subjects
Efficiency
Electric potential
Electromagnetic fields
Error signals
Fluctuations
Injection
Mathematical models
Permanent magnets
Position errors
Position sensing
Signal injection
Signal processing
Sine waves
Switching
Voltage
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Summary:Flux-Switching Permanent-Magnet (FSPM) machines are novel brushless machines with magnets in the stator, which have recently undergone intensive research due to their novel features, such as simple and robust rotor, flux focusing effect, sinusoidal phase back-EMF, high torque/power density, and high efficiency. In this paper, a sensorless High-Frequency (HF) sinusoidal signal injection scheme for a novel yokeless and segmented armature axial flux-switching sandwiched permanent-magnet motor (YASA-AFFSSPM) is proposed. Firstly, pulsating voltage injection is investigated in detail. In addition, a simpler method (direct signal process method) for position error signal processing is presented based on pulsating signal injection. The principle and the realization of this method are analyzed in depth. Through experiment, the traditional signal process method and direct signal process method with HF pulsating sinusoidal signal injection are compared to verify the validity of the proposed method.
DOI:10.24200/sci.2021.57434.5239