Modeling and Analysis of Stator Interturn Fault Location Effects on Induction Machines

Locating the stator interturn (SIT) fault on the motor winding structure adds an important feature in the fault diagnosis. This motivates to study the effects of SIT fault location on the induction machine. In this paper, a simple yet accurate stationary reference frame q-d-0 model of SIT-faulted induction machine, including the fault location parameter, is developed. The fundamental components of winding functions (WFs) are used to calculate the machine inductances for the proposed model. These inductances in stationary reference frame q-d-0 variables are rotor-position-independent expressions and functions of fault severity and fault location. The proposed model is as accurate as the multiple-coupled-circuit model for fault location study. It does not require the recalculation of machine inductances in each integration step to solve the model. The experimental validation of the model is presented. The steady-state analysis based on the proposed model indicates that the inclination of the current vector locus and the phase angle of the negative-sequence current phasor are the strong indicators of the SIT fault location.

[1]  A.J.M. Cardoso,et al.  Multiple reference frames theory: a new method for the diagnosis of stator faults in three-phase induction motors , 2005, IEEE Transactions on Energy Conversion.

[2]  M. C. Chandorkar,et al.  Transient modeling and analysis of induction motors with position effects in stator turn faults , 2010, 2010 IEEE International Conference on Industrial Technology.

[3]  Khaled Jelassi,et al.  An Effective Neural Approach for the Automatic Location of Stator Interturn Faults in Induction Motor , 2008, IEEE Transactions on Industrial Electronics.

[4]  Leila Parsa,et al.  Recent Advances in Modeling and Online Detection of Stator Interturn Faults in Electrical Motors , 2011, IEEE Transactions on Industrial Electronics.

[5]  Hamid A. Toliyat,et al.  Transient analysis of cage induction machines under stator, rotor bar and end ring faults , 1995 .

[6]  S. Nandi,et al.  A detailed model of induction machines with saturation extendable for fault analysis , 2004, IEEE Transactions on Industry Applications.

[7]  L. Piegari,et al.  An analytical model of the induction machine for the development of diagnostic techniques , 2011, 8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives.

[8]  M.I. Valla,et al.  A 2-D model of the induction machine: an extension of the modified winding function approach , 2004, IEEE Transactions on Energy Conversion.

[9]  Gérard Champenois,et al.  New Expressions of Symmetrical Components of the Induction Motor Under Stator Faults , 2013, IEEE Transactions on Industrial Electronics.

[10]  Vincent Cocquempot,et al.  A model of asynchronous machines for stator fault detection and isolation , 2003, IEEE Trans. Ind. Electron..

[11]  Antonio J. Marques Cardoso,et al.  Inter-turn stator winding fault diagnosis in three-phase induction motors, by Park's Vector approach , 1997 .

[12]  Thomas G. Habetler,et al.  A Survey on Testing and Monitoring Methods for Stator Insulation Systems of Low-Voltage Induction Machines Focusing on Turn Insulation Problems , 2008, IEEE Transactions on Industrial Electronics.

[13]  B. Mirafzal,et al.  Interturn Fault Diagnosis in Induction Motors Using the Pendulous Oscillation Phenomenon , 2006, IEEE Transactions on Energy Conversion.

[14]  Gérard-André Capolino,et al.  Wound-Rotor Induction Generator Inter-Turn Short-Circuits Diagnosis Using a New Digital Neural Network , 2013, IEEE Transactions on Industrial Electronics.

[15]  Guillermo R. Bossio,et al.  Online Model-Based Stator-Fault Detection and Identification in Induction Motors , 2009, IEEE Transactions on Industrial Electronics.

[16]  J. Sottile,et al.  Condition monitoring of stator windings in induction motors. I. Experimental investigation of the effective negative-sequence impedance detector , 2002 .

[17]  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).

[18]  Gojko Joksimovic,et al.  The detection of inter-turn short circuits in the stator windings of operating motors , 2000, IEEE Trans. Ind. Electron..

[19]  T.A. Lipo,et al.  Multiple coupled circuit modeling of induction machines , 1993, Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting.

[20]  H. Razik,et al.  Modelling and Detection of Inter-Turn Short Circuits in Stator Windings of Induction Motor , 2006, IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics.

[21]  Sang Bin Lee,et al.  Detection and Classification of Stator Turn Faults and High Resistance Electrical Connections for Induction Machines , 2007, 2007 IEEE Industry Applications Annual Meeting.

[22]  Raphaël Romary,et al.  Offline and Online Methods for Stator Core Fault Detection in Large Generators , 2013, IEEE Transactions on Industrial Electronics.

[23]  Thomas G. Habetler,et al.  A survey of condition monitoring and protection methods for medium voltage induction motors , 2009 .

[24]  R. M. Tallam,et al.  A robust, on-line turn-fault detection technique for induction machines based on monitoring the sequence component impedance matrix , 2003 .

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