Design and Control of Multicoil Active Magnetic Bearing System for High-Speed Application

Sukanta Debnath, Upama Das, Pabitra Kumar Biswas, Belqasem Aljafari and Sudhakar Babu Thanikanti ()
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Sukanta Debnath: Department of Electrical and Electronics Engineering, National Institute of Technology Mizoram, Aizawl 796012, India
Upama Das: Department of Electrical and Electronics Engineering, National Institute of Technology Mizoram, Aizawl 796012, India
Pabitra Kumar Biswas: Department of Electrical and Electronics Engineering, National Institute of Technology Mizoram, Aizawl 796012, India
Belqasem Aljafari: Electrical Engineering Department, College of Engineering, Najran University, Najran 11001, Saudi Arabia
Sudhakar Babu Thanikanti: Department of Electrical and Electronics Engineering, Chaitanya Bharathi Institute of Technology, Hyderabad 500075, India

Energies, 2023, vol. 16, issue 11, 1-24

Abstract: In the rotating machinery sector, active magnetic bearing (AMB) has drawn great attention due to its benefits over the conventional bearing system. The high-speed technology is enhanced by AMBs, which also reduce maintenance costs and eliminate friction loss. This paper presents a unique, simpler, efficient design and hardware implementation for high-speed applications using two-coil I-type active magnetic bearings. To maintain the 10 mm air gap between the actuator and the rotor, two categories of controllers have been designed for the proposed system to control the position and another for detecting the coil current through the power amplifier. The AMB system is incorporated into a 3D finite element model for determining magnetic properties. The magnetic analysis is then carried out under various situations, and the attractive force characteristics have been evaluated for this suggested system to check the performance of the multicoil AMB system along with the stability analysis. The system is designed and simulated in MATLAB Simulink and implemented in hardware to validate the different outputs viz. position response and current response. Finally, an AC magnet is designed to rotate the rotor after the levitation, and a higher speed of 19,643 rpm is achieved in comparison to conventional bearings, which can be utilized in different industrial applications.

Keywords: active magnetic bearing; controllers; hardware implementation; magnetic analysis; sensors (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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