Tolerant Design and Electromagnetic Response of Permanent Magnet Machine with Stator Turn Fault

Stator turn fault is commonly found in variable-frequency PM machine drives which using PWM techniques, and this paper analyzes electromagnetic response of permanent magnet (PM) synchronous machines exposed to this fault under two different stator windings configurations. In this paper, two stator windings are modeled and compared to determine which has better fault tolerant capability. When the machine is operated under turn fault, the windings with separated neutral points (NP's) has lower torque ripple caused by fault reflected flux harmonics. Besides, average torque output is less affected by the turn fault because of decreasing circulating currents in windings. Analytical models based on equivalent circuits are developed to predict the machine flux and torque property. All developed analytical models are verified by the finite element analysis (FEA).

[1]  Behrooz Mirafzal,et al.  Survey of Fault-Tolerance Techniques for Three-Phase Voltage Source Inverters , 2014, IEEE Transactions on Industrial Electronics.

[2]  Thomas G. Habetler,et al.  An On-Line Stator Turn Fault Detection Method for Interior PM Synchronous Motor Drives , 2007, APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition.

[3]  Gilsu Choi,et al.  PM Synchronous Machine Drive Response to Asymmetrical Short-Circuit Faults , 2014, IEEE Transactions on Industry Applications.

[4]  Jiabin Wang,et al.  Stator Interturn Fault Detection in Permanent-Magnet Machines Using PWM Ripple Current Measurement , 2016, IEEE Transactions on Industrial Electronics.

[5]  Thomas G. Habetler,et al.  Transient model for induction machines with stator winding turn faults , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[6]  Shih-Chin Yang,et al.  Online Stator Turn Fault Detection for Inverter-Fed Electric Machines Using Neutral Point Voltages Difference , 2016, IEEE Transactions on Industry Applications.

[7]  Jun-Hyuk Choi,et al.  Development and Analysis of Interturn Short Fault Model of PMSMs With Series and Parallel Winding Connections , 2014, IEEE Transactions on Power Electronics.

[8]  Gérard-André Capolino,et al.  Advances in Diagnostic Techniques for Induction Machines , 2008, IEEE Transactions on Industrial Electronics.

[9]  A.H. Bonnett,et al.  Increased Efficiency Versus Increased Reliability , 2008, IEEE Industry Applications Magazine.

[10]  Shumei Cui,et al.  Interturn Fault Diagnosis Strategy for Interior Permanent-Magnet Synchronous Motor of Electric Vehicles Based on Digital Signal Processor , 2016, IEEE Transactions on Industrial Electronics.

[11]  Henk Polinder,et al.  Analysis and Neutral Voltage-Based Detection of Interturn Faults in High-Speed Permanent-Magnet Machines With Parallel Strands , 2015, IEEE Transactions on Industrial Electronics.

[12]  Chris Gerada,et al.  Analysis of Vertical Strip Wound Fault-Tolerant Permanent Magnet Synchronous Machines , 2014, IEEE Transactions on Industrial Electronics.

[13]  Babak Nahid-Mobarakeh,et al.  Modelling and study of PM machines with inter-turn fault dynamic model-FEM model , 2011 .

[14]  J. Haylock,et al.  Operation of fault tolerant machines with winding failures , 1997, 1997 IEEE International Electric Machines and Drives Conference Record.

[15]  Yves Perriard,et al.  Minimizing the circulating currents of a slotless BLDC motor through winding reconfiguration , 2015, 2015 IEEE Energy Conversion Congress and Exposition (ECCE).

[16]  H.A. Toliyat,et al.  Condition Monitoring and Fault Diagnosis of Electrical Motors—A Review , 2005, IEEE Transactions on Energy Conversion.