Active Magnetic Bearing system design featuring a Predictive current control

Papini, Luca and Tarisciotti, Luca and Costabeber, Alessando and Gerada, C. and Wheeler, Patrick (2016) Active Magnetic Bearing system design featuring a Predictive current control. In: 42nd Annual Conference of IEEE Industrial Electronics Society, 24-27 October 2016, Florence, Italy. (In Press)

[img] PDF - Repository staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (1MB)

Abstract

Active Magnetic Bearing (AMB) technology is becoming attractive for several reasons such as high speed operations, high reliability and vibrations exemption. Moreover, AMB can behave as active vibration dampers and provide a real-time control of the shaft. For all these advantages, AMBs are particularly attractive for high power - high speed applications. These desirable features come at the cost of an increased complexity of the system, which now includes a power electronic converter and a control system dedicated to the AMBs. This paper focus on the overall system design, from the AMB design, to the power electronic converter design and control, for an AMB featuring Wheatstone bridge winding configuration. The magnetic design has been developed analytically and validated by means of Finite Elements simulation, to generate up to 2kN of axial forces. The power conversion system is based on three full bridges, one to magnetize the bearing and two to control the axial forces independently on the x and y axes. In order to achieve high bandwidth current control able to generate the desired orthogonal forces, a predictive control strategy has been proposed, for the several advantages it can provides such as fast dynamic response, no need of modulation, easy inclusion of nonlinearities and constraints of the system, possibility of incorporating nested control loops in only one loop and the flexibility to include other system requirements in the controller. The control system has been validated in Matlab/PLECS simulation, including the effect of parameters mismatches in the coils.

Item Type: Conference or Workshop Item (Paper)
Keywords: Active Magnetic Bearing, Predictive control
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering > Department of Electrical and Electronic Engineering
Related URLs:
URLURL Type
http://www.iecon2016.org/Organisation
Depositing User: Burns, Rebecca
Date Deposited: 22 Aug 2016 15:26
Last Modified: 13 Sep 2016 13:44
URI: http://eprints.nottingham.ac.uk/id/eprint/35912

Actions (Archive Staff Only)

Edit View Edit View