Experimental determination of dynamic system simulation parameters for a bearingless rotating-field axial-force/torque motor. (May 2017)

• Record Type: Journal Article
• Authors: Bauer, Walter; Freudenthaler, Paul; Gruber, Wolfgang; Amrhein, Wolfgang
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 231:Number 5(2017)
• Page Start: 348
• Page End: 359
• Publication Date: 2017-05
• Subjects: Brushless motors -- permanent magnet motors -- magnetic levitation -- bearingless drive -- Lorentz force -- magnetic bearing -- air gap winding -- air-core coil motor -- axial-force/torque motor -- passive magnetic suspension -- vector drive control; Mechanical engineering -- Periodicals; Automatic control -- Periodicals; Systems engineering -- Periodicals; 621.3
• DOI: 10.1177/0959651816647569
• Languages: English
• ISSNs: 0959-6518

Abstract

The dynamic system simulation and the control design process of the new developed bearingless rotating-field axial-force/torque motor (AFTM) requires an augmented state-space framework for mathematical system description. After a short summary of this framework, the main focus of this paper concentrates on the model parameterization using state-of-the-art drive gauging procedures. A direct comparison features minor deviations between magnetostatic finite element analysis simulation results and available measurement data. Moreover, a closed-loop control concept for concurrent axial position stabilization and vector drive control of AFTMs is proposed. The quality of the closed-loop control system simulation is reviewed using relevant measurements of the functional prototype. A presentation of the disassembled prototype and a summary of its performance data concludes this paper.