Open AccessDynamic Modeling and Parametric Analysis of the Magnetic Stiffness on a Radial Heteropolar Rotor Magnetic Bearing (RMB)
Author(s) -
Rodrigo Trentini,
Daniel dos Santos,
Oscar Henrique Reichow,
Rodrigo Piontkewicz
Publication year - 2021
Publication title -
international journal of electrical and computer engineering research
Language(s) - English
Resource type - Journals
ISSN - 2791-6677
DOI - 10.53375/ijecer.2021.18
Subject(s) - magnetic bearing , rotor (electric) , bearing (navigation) , stiffness , parametric statistics , current (fluid) , physics , saturation (graph theory) , mechanics , control theory (sociology) , mathematics , computer science , thermodynamics , statistics , quantum mechanics , astronomy , combinatorics , control (management) , artificial intelligence
This paper presents both the dynamic modelling and the study of the variation of certain physical parameters (pole area, gap and base current) that change the magnetic stiffness of a radial heteropolar Rotor Magnetic Bearing (RMB) aiming at the analysis of the magnitude of its control current for three different equilibrium points. The RMB is modelled as a fully uncoupled symmetric active 8-pole magnetic bearing. The analysis is performed using spectral cubes for a better visualisation of the posed problem. The saturation analysis of the RMB is also performed. At last, it is shown that a control current with the same magnitude as the base current is reached with minimum pole area and air gap s0 = 528 um.