Authors

Electromechanical Engineering Dept., University of Technology, Baghdad-Iraq, Alsina'a street, 10066 Baghdad, Iraq.

Abstract

This research aims to design an Active Magnetic Bearing (AMB) after performing an optimization process via reducing the number of poles and by reducing air gap, Dia. Yoke, and Z-length (deep of model). To increase the performance of a radial Active Magnetic Bearing (AMB), all particular equations of design based on the Genetic Algorithm method by using ANSYS Maxwell (Version 17.1) program of electro-magnetic have been studied. Manufacturing an active magnetic bearing standing for two counts, each one containing 12 poles instead of 16, led to a significant improvement in the performance. Some conclusions were obtained, including the complications in the control system will be reduced when they are linked in AMB. The complexities of the control system are inversely proportional to the number of poles and the model covered in this study is made of a material with good engineering and magnetic characteristics steel 37-2.

Highlights

  • Designing a radial Active Magnetic Bearing (AMB) after performing an optimization process via reducing the number of poles.
  • Reduction of the complexities of the control system is inversely proportional to the number of poles.
  • It was noticed that increasing the rotational speed would increase the torque.
  • The model covered in this study is made of a material with good engineering and magnetic characteristics steel 37-2.

Keywords

Main Subjects

[1] L. V. Rao and S. K Kakoty, Design of Compact Active Magnetic Bearing, Int. Journal of Applied Sciences and Engineering Research, 3 (2014).
[2] T. J. Yeh., Design, Analysis and Control of a Semi-active Magnetic Bearing System for Rotating Machine Applications”, 12th International Conference on Informatics in Control, Automation and Robotics, ICINCO, (2015).
[3] G. Martynenko, Resonance Mode Detuning In Rotor Systems Employing Active And Passive Magnetic Bearings With Controlled Stiffness, International Journal of Automotive and Mechanical Engineering (IJAME), 13 (2016) 3293 - 3308
[4] P. O. Ansah, A. F. Justice, P. K. Agyemang, and S. K. Woangbah, Modal Analysis of Rotating Structures with Active Magnetic Bearing, Journal of Mechanical and Civil Engineering (IOSR-JMCE), 13 (2016).
[5] M. AttiaHili, S. Bouaziz and M. Haddar, Stability Analysis and Dynamic Behaviour of A Flexible Asymmetric Rotor Supported By Active Magnetic Bearings, Journal of Theoretical and Applied Mechanics, 55 (2017).
[6] H. Spece, R.  Fittro and C. Knospe, Optimization of Axial Magnetic Bearing Actuators for Dynamic Performance, Actuators, 7 (2018).
[7] S. Ran, Y. Hu and H. Wu, Design, Modeling, And Robust Control Of The Flexible Rotor To Pass The First Bending Critical Speed With Active Magnetic Bearing, Advances in Mechanical Engineering, 10 (2018).
[8] Z. Zhixian, J. Bolonga, W. Jiayuana, L. Yixina and Z. Changshengb, Analysis of Vibration Characteristics of PD Control Active Magnetic Bearing and Cracked Rotor System, International Journal of Engineering, 32 (2019).
[9] W. Zhang and H. Zhu, Radial Magnetic Bearings: An Overview, Results in Physics, 7 (2017) 3756–3766.
[10] P.K Agarwal and S. Chand, Fuzzy Logic Control of Three-Pole Active Magnetic Bearing System, Int. Journal of Modeling, Identification and Control, 12 (2011).
[11] W. Zhong, A Review of Active Magnetic Bearings Supported Systems Optimization Design, International Journal of Magnetics and Electromagnetism, 6 (2020).
[12] E. G. Alcaide, L. P.Acosta , P. K. Kiyohara and  R. F. Jardim, Diamagnetic, Paramagnetic, and Ferromagnetic Properties of Ball Milled Bi1.65 Pb 0.35Sr2Ca2Cu3O10+dPowders, Journal of Nanoparticle Research, 17 (2015) 432.
[13] Z. Zhixian, J. Bolonga, W. Jiayuana, L. Yixina and Z. Changshengb, Analysis of Vibration Characteristics of PD Control Active Magnetic Bearing and Cracked Rotor System, International Journal of Engineering, 32 (2019).