Single-Phase Open-Circuit Fault Operation of Bearingless Multi-Sector PM Machines

This paper investigates the single-phase open-circuit fault of a bearingless multi-sector PM synchronous machine. The mathematical model of the suspension force and torque generation is developed for both healthy and faulty conditions. The model is written in a general form and it can be easily extended to any sectored PM synchronous machine. Then, a fault tolerant control strategy is proposed and verified by means of finite elements and numerical simulations. The system shows a good fault tolerant capabilities. Index Terms-Bearingless machines, multiphase machines, PM synchronous machines, fault tolerant control.

[1]  Akira Chiba,et al.  Principles and Characteristics of a Reluctance Motor with Windings of Magnetic Bearing , 1990 .

[2]  Tore Undeland,et al.  Dual purpose no voltage winding design for the bearingless ac homopolar and consequent pole motors , 2014 .

[3]  T. Masuzawa,et al.  Mixed flow artificial heart pump with axial self-bearing motor , 2005, IEEE/ASME Transactions on Mechatronics.

[4]  C. Gerada,et al.  Open-Circuit Fault Tolerant Study of Bearingless Multi-Sector Permanent Magnet Machines , 2018, 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia).

[5]  A. Chiba,et al.  Development of a Compact Centrifugal Pump With a Two-Axis Actively Positioned Consequent-Pole Bearingless Motor , 2014, IEEE Transactions on Industry Applications.

[6]  Li Yu,et al.  Modeling and Analysis of Suspension Force of a New Bearingless Reluctance Machine With Independent DC Bias Winding , 2018, IEEE Transactions on Magnetics.

[7]  Takayoshi Narita,et al.  Stabilized suspension control strategy at failure of a motor section in a d-q axis current control bearingless motor , 2015, 2015 IEEE Industry Applications Society Annual Meeting.

[8]  T. Fukao,et al.  Radial force in a bearingless reluctance motor , 1991 .

[9]  Hongyun Jia,et al.  Mathematical Model of Radial Suspending Force for a New Stator-Permanent Magnet Bearingless Machine , 2015, IEEE Transactions on Magnetics.

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

[11]  Qing-Chang Zhong,et al.  Current-Controlled Multiphase Slice Permanent Magnetic Bearingless Motors With Open-Circuited Phases: Fault-Tolerant Controllability and Its Verification , 2012, IEEE Transactions on Industrial Electronics.

[12]  Luca Papini,et al.  Performance Improvement of Bearingless Multisector PMSM With Optimal Robust Position Control , 2019, IEEE Transactions on Power Electronics.

[13]  Jin Huang,et al.  Analysis and Control of Multiphase Permanent-Magnet Bearingless Motor With a Single Set of Half-Coiled Winding , 2014, IEEE Transactions on Industrial Electronics.

[14]  R. M. Stephan,et al.  A bearingless method for induction machines , 1993 .

[15]  Jin Huang,et al.  Principle and realization of a 5-phase PM bearingless motor drive , 2009, 2009 IEEE 6th International Power Electronics and Motion Control Conference.

[16]  S. Garvey,et al.  Practical Implementation of the Bridge Configured Winding for Producing Controllable Transverse Forces in Electrical Machines , 2011, IEEE Transactions on Magnetics.

[17]  Jia-qiang Yang,et al.  Principle and simulation of a 5-phase bearingless permanent magnet-type synchronous motor , 2008, 2008 International Conference on Electrical Machines and Systems.

[18]  C. Gerada,et al.  Radial force control of multi-sector permanent magnet machines , 2016, 2016 XXII International Conference on Electrical Machines (ICEM).