A Comparative Analysis of the New Five-Pole and Three-Pole Active Magnet Bearing

Subject Areas : Electronic transport

Pedram Vakili ¹ , Mehrdad Jafarboland ² , Hamid Reza Momeni ³

1 - MSc/Foolad Technic International Engiineering Co.
2 - Electrical Engineering Department, Najafabad Branch, Maleke- Ashtar University
3 - Associated Professor/Tarbiat Modares University

Received: 2010-05-20 Accepted : 2011-09-09 Published : 2013-09-01

Keywords: Efficiency, Five-pole, Active magnet bearing, Separate Core, Solid Core,

Abstract :

In recent years, more attention has been given to the active AMBs thanks to their low maintenance cost, suitability for clean environments, and high speed. One of the popular types of AMBs is the three-pole type with integrated and separate cores. Some deficiencies of this type of bearing are its high oscillation, low stability and low efficiency. This paper seeks to analyse the three-pole AMBs and describe their deficiencies and introduce and analyse a new five-pole AMB. The model thus proposed has lower oscillation as well as more stability and efficiency. The five-pole AMB has been simulated by a controller in the presence of disturbance. The results of simulation demonstrate lower vibration and oscillation in the five-pole AMB in comparison with the three-pole model.