Six-phase supply feasibility using a PM fractional-slot dual winding machine

The growing interest on fault tolerant drives requires new solutions avoiding the adoption of custom and expensive configurations. The machine with a dual three-phase winding is an interesting candidate. It is provided of two windings, each of them fed by one converter of half power. In the event of fault, one of the two three-phase windings (the faulty one) is disconnected and the machine is operated by means of the healthy winding only. With a proper mechanical and electrical arrangement the machine can be exactly a six-phase machine, obtaining higher performance during healthy conditions. The paper analyzes the feasibility of this dual winding configuration applied to a non-overlapped coils fractional-slot winding permanent magnet (PM) machine. The star of slots is applied to highlight the proper winding candidates. The more interesting windings are deeply analyzed.

[1]  M. Ubaldini,et al.  HIGH POLE NUMBER, PM SYNCHRONOUS MOTOR WITH CONCENTRATED COIL ARMATURE WINDINGS , 2006 .

[2]  Fernando J. T. E. Ferreira,et al.  Three phase tooth-concentrated multiple-layer fractional windings with low space harmonic content , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[3]  M. Ubaldini,et al.  Permanent Magnet Linear Actuators with Concentrated Coils , 2003 .

[4]  Rudolf Richter.  Lehrbuch der Wicklungen elektrischer Maschinen , 1952 .

[5]  ガルシア アルフレード ロドルフォ ミュニョス,et al.  Dual stator winding induction machine drive , 1999 .

[6]  Alberto Tenconi,et al.  Dual three-phase induction motor drive with digital current control in the stationary reference frame , 1989 .

[7]  Andrea Cavagnino,et al.  Efficiency Analysis of PWM Inverter Fed Three-Phase and Dual Three-Phase High Frequency Induction Machines for Low/Medium Power Applications , 2008, IEEE Transactions on Industrial Electronics.

[8]  Paul C. Krause,et al.  Induction Machine Analysis for Arbitrary Displacement Between Multiple Winding Sets , 1974 .

[9]  Jinjun Liu,et al.  A simple current sharing scheme for dual three-phase permanent-magnet synchronous motor drives , 2010, 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[10]  Drazen Dujic,et al.  General Modulation Strategy for Seven-Phase Inverters With Independent Control of Multiple Voltage Space Vectors , 2008, IEEE Transactions on Industrial Electronics.

[11]  Nicola Bianchi,et al.  Considerations on selecting fractional—slot windings , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[12]  A. El-Refaie,et al.  Eddy-Current Loss Minimization in Conducting Sleeves of Surface PM Machine Rotors With Fractional-Slot Concentrated Armature Windings by Optimal Axial Segmentation and Copper Cladding , 2009, IEEE Transactions on Industry Applications.

[13]  Jinjun Liu,et al.  A comparative study of space vector PWM strategy for dual three-phase permanent-magnet synchronous motor drives , 2010, 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[14]  E. Klingshirn,et al.  High Phase Order Induction Motors - Part I-Description and Theoretical Considerations , 1983, IEEE Transactions on Power Apparatus and Systems.

[15]  G. K. Singh, Vinay Pant,et al.  Analysis of a Multiphase Induction Machine Under Fault Condition in a Phase-Redundant A.C. Drive System , 2000 .

[16]  Emil Levi,et al.  Multiphase Electric Machines for Variable-Speed Applications , 2008, IEEE Transactions on Industrial Electronics.

[17]  N. Bianchi,et al.  Design considerations for fractional-slot winding configurations of synchronous machines , 2006, IEEE Transactions on Industry Applications.

[18]  Nicola Bianchi,et al.  Use of the star of slots in designing fractional-slot single-layer synchronous motors , 2006 .

[19]  S Bolognani,et al.  An Overview of Rotor Losses Determination in Three-Phase Fractional-Slot PM Machines , 2010, IEEE Transactions on Industry Applications.

[20]  M. M. Liwschitz.  Balanced Fractional-Slot Wave windings , 1948, Transactions of the American Institute of Electrical Engineers.

[21]  A.M. El-Refaie,et al.  Effect of Number of Phases on Losses in Conducting Sleeves of Surface PM Machine Rotors Equipped With Fractional-Slot Concentrated Windings , 2008, IEEE Transactions on Industry Applications.

[22]  Thomas M. Jahns,et al.  Improved Reliability in Solid-State AC Drives by Means of Multiple Independent Phase Drive Units , 1980, IEEE Transactions on Industry Applications.

[23]  Massimo Barcaro,et al.  IPM Machine Drive Design and Tests for an Integrated Starter–Alternator Application , 2008, IEEE Transactions on Industry Applications.

[24]  A. Tenconi,et al.  Digital field oriented control for dual three-phase induction motor drives , 2002 .

[25]  Barrie Mecrow,et al.  Operation of a fault tolerant PM drive for an aerospace fuel pump application , 1997 .

[26]  N. Bianchi,et al.  Design of a fault-tolerant IPM motor for electric power steering , 2006, IEEE Transactions on Vehicular Technology.

[27]  Alberto Tenconi,et al.  Dual three-phase induction motor drive with digital current control in the stationary reference frame , 2006 .

[28]  Massimo Barcaro,et al.  Analysis and Tests of a Dual Three-Phase 12-Slot 10-Pole Permanent-Magnet Motor , 2010 .

[29]  Mihail V. Cistelecan,et al.  Three phase tooth-concentrated interspersed windings with low space harmonic content , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[30]  N. Bianchi,et al.  Design considerations on fractional-slot fault-tolerant synchronous motors , 2005, IEEE International Conference on Electric Machines and Drives, 2005..

[31]  Nicola Bianchi,et al.  Rotor losses in fractional-slot three-phase and five-phase PM machines , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[32]  Massimo Barcaro,et al.  Faulty Operations of a PM Fractional-Slot Machine With a Dual Three-Phase Winding , 2011, IEEE Transactions on Industrial Electronics.

[33]  W. Marsden.  I and J , 2012 .

[34]  P. Viarouge,et al.  Synthesis of high performance PM motors with concentrated windings , 1999, IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272).

[35]  S. Williamson,et al.  Induction motor performance as a function of phase number , 2006 .