A Novel Flux-Reversal Bearingless Slice Motor Controlled by Rotor Angle Independent Suspension Current

A novel flux-reversal bearingless slice motor with rotor angle independent suspension current (DC-FRBLM) is proposed in this article. The rotor is simple and robust with neither a permanent magnet (PM) nor field windings. And the suspension currents can be controlled independently from the rotor angle. As a result, the merits of fault tolerance, high structure compactness, simple control, and low manufacturing difficulty can be realized. The topology and circuit of the proposed DC-FRBLM are introduced first. The combination requirement of stator slot and rotor tooth number is investigated. Simultaneously, the suspension principle is analyzed theoretically by studying the airgap harmonics of the PM field and armature field. Then, three DC-FRBLMs with different stator slot numbers are analyzed based on finite element analysis. The suspension principle is verified by the airgap field FFT results. The effects of some key design parameters are investigated in order to improve torque/suspension performance. Finally, a DC-FRBLM prototype is manufactured and tested to confirm the theoretical analysis. The experimental results show the proposed prototype can be steadily suspended with rotor angle independent suspension current.

[1]  Yangzhong Zhou,et al.  Modeling and Analysis of Dual-Winding Bearingless Flux-Switching Permanent Magnet Motor Considering Magnetic Saturation Based on Subdomain Model , 2022, IEEE Transactions on Energy Conversion.

[2]  Huangqiu Zhu,et al.  Permanent Magnet Parameter Design and Performance Analysis of Bearingless Flux Switching Permanent Magnet Motor , 2021, IEEE Transactions on Industrial Electronics.

[3]  Tao Zhang,et al.  Suspension Performance Analysis on the Novel Hybrid Stator Type Bearingless Switched Reluctance Motor , 2021, IEEE Transactions on Magnetics.

[4]  Z. Zhu,et al.  Analysis of Novel Consequent Pole Flux Reversal Permanent Magnet Machines , 2021, IEEE Transactions on Industry Applications.

[5]  Huijun Wang,et al.  Design Consideration and Characteristic Investigation of Modular Permanent Magnet Bearingless Switched Reluctance Motor , 2020, IEEE Transactions on Industrial Electronics.

[6]  Jingwei Zhu,et al.  Review of Bearingless Motor Technology for Significant Power Applications , 2020, IEEE Transactions on Industry Applications.

[7]  Hui Yang,et al.  Analysis of Consequent-Pole Flux Reversal Permanent Magnet Machine With Biased Flux Modulation Theory , 2020, IEEE Transactions on Industrial Electronics.

[8]  W. Gruber,et al.  Nonlinear Control of a Bearingless Flux-Switching Slice Motor With Combined Winding System , 2020, IEEE/ASME Transactions on Mechatronics.

[9]  T. Ishikawa,et al.  A Double-Sided Stator Type Axial Bearingless Motor Development for Total Artificial Heart , 2019, IEEE Transactions on Industry Applications.

[10]  R. Qu,et al.  Analysis of a Flux Reversal Machine With Quasi-Halbach Magnets in Stator Slot Opening , 2019, IEEE Transactions on Industry Applications.

[11]  T. Oiwa,et al.  Development of a Homo-Polar Bearingless Motor with Concentrated Winding for High Speed Applications , 2018, 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia).

[12]  D. Dietz,et al.  1 kW/60,000 min −1 bearingless PM motor with combined winding for torque and rotor suspension , 2018, IET Electric Power Applications.

[13]  Tadahiko Shinshi,et al.  Experimental Evaluation for Core Loss Reduction of a Consequent-Pole Bearingless Disk Motor Using Soft Magnetic Composites , 2018, IEEE Transactions on Energy Conversion.

[14]  Z. Deng,et al.  Optimal Winding Configuration of Bearingless Flux-Switching Permanent Magnet Motor With Stacked Structure , 2018, IEEE Transactions on Energy Conversion.

[15]  T. Masuzawa,et al.  Magnetic levitation performance of miniaturized magnetically levitated motor with 5-DOF active control , 2017 .

[16]  Tore Undeland,et al.  Design of Dual Purpose No-Voltage Combined Windings for Bearingless Motors , 2017, IEEE Transactions on Industry Applications.

[17]  Ronghai Qu,et al.  Consequent-Pole Flux-Reversal Permanent-Magnet Machine for Electric Vehicle Propulsion , 2016, IEEE Transactions on Applied Superconductivity.

[18]  Ned Mohan,et al.  Practical implementation of dual purpose no voltage drives for bearingless motors , 2015, 2015 IEEE Applied Power Electronics Conference and Exposition (APEC).

[19]  R. Schob,et al.  Design of a novel homopolar bearingless slice motor with reluctance rotor , 2015, 2013 IEEE Energy Conversion Congress and Exposition.

[20]  Wolfgang Gruber,et al.  On the High Speed Capacity of Bearingless Drives , 2014, IEEE Transactions on Industrial Electronics.

[21]  Jianfeng Liu,et al.  A Novel Bearingless Switched Reluctance Motor With a Biased Permanent Magnet , 2014, IEEE Transactions on Industrial Electronics.

[22]  Akira Chiba,et al.  A Novel Parallel Motor Winding Structure for Bearingless Motors , 2013, IEEE Transactions on Magnetics.

[23]  W. Gruber,et al.  Bearingless slice motor concepts without permanent magnets in the rotor , 2013, 2013 IEEE International Conference on Industrial Technology (ICIT).

[24]  Johann W. Kolar,et al.  Bearingless 300-W PMSM for Bioreactor Mixing , 2012, IEEE Transactions on Industrial Electronics.

[25]  Wolfgang Gruber,et al.  Novel bearingless slice motor design with four concentrated coils featuring a unique operational behavior , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.

[26]  M. A. Rahman,et al.  A Novel Middle-Point-Current-Injection-Type Bearingless PM Synchronous Motor for Vibration Suppression , 2011, IEEE Transactions on Industry Applications.

[27]  Johann W. Kolar,et al.  Magnetically levitated slice motors - an overview , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[28]  J.W. Kolar,et al.  Comparative Evaluation of Polyphase Bearingless Slice Motors for Fluid-Handling Applications , 2009, IEEE Transactions on Industry Applications.

[29]  M. Ooshima,et al.  Development of a Four-Axis Actively Controlled Consequent-Pole-Type Bearingless Motor , 2009, IEEE Transactions on Industry Applications.

[30]  J.W. Kolar,et al.  Modulation Concepts for the Control of a Two-Phase Bearingless Slice Motor Utilizing Three-Phase Power Modules , 2007, 2007 Power Conversion Conference - Nagoya.

[31]  David G. Dorrell,et al.  Magnetic Bearings and Bearingless Drives , 2005 .

[32]  D.G. Dorrell,et al.  Basic characteristics of a consequent-pole-type bearingless motor , 2005, IEEE Transactions on Magnetics.

[33]  Yuting Gao,et al.  Design and Analysis of a Flux Reversal Machine With Evenly Distributed Permanent Magnets , 2018, IEEE Transactions on Industry Applications.

[34]  Yuting Gao,et al.  A Novel Hybrid Excitation Flux Reversal Machine for Electric Vehicle Propulsion , 2016, 2016 IEEE Vehicle Power and Propulsion Conference (VPPC).

[35]  Eisuke Tatsumi,et al.  Radial position active control of double stator axial gap self-bearing motor for pediatric VAD , 2015 .

[36]  Akira Chiba,et al.  Reduction of force interference and performance improvement of a consequent-pole bearingless motor , 2012 .