Hybrid Model for Wound-Rotor Synchronous Generator to Detect and Diagnose Turn-to-Turn Short-Circuit Fault in Stator Windings

In this paper, a hybrid modeling approach to model synchronous generator by combining the dq0 modeling with the winding function approach has been proposed. The proposed hybrid approach improves accuracy and reduces complexity of the synchronous generator model for winding fault such as turn-to-turn short-circuit (TTSC) . This paper also proposes a simple method to model localized saturation effect due to TTSC and presents an air-gap function for synchronous machine with winding fault to improve model accuracy under high degrees of TTSC fault. Experimental validation results show that the developed synchronous generator model with TTSC fault is able to provide improved accuracy and consistent performance under wider degrees of TTSC faults in the stator windings.

[1]  G.A. Capolino,et al.  A simple circuit-oriented model for predicting six-phase induction machine performances , 2006, IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics.

[2]  Juha J. Pyrhönen,et al.  Effect of Slot-and-Pole Combination on the Leakage Inductance and the Performance of Tooth-Coil Permanent-Magnet Synchronous Machines , 2013, IEEE Transactions on Industrial Electronics.

[3]  Katsumi Yamazaki,et al.  Torque Analysis of Interior Permanent-Magnet Synchronous Motors by Considering Cross-Magnetization: Variation in Torque Components With Permanent-Magnet Configurations , 2014, IEEE Transactions on Industrial Electronics.

[4]  S. K. Panda,et al.  Dynamic model of Brushless Synchronous Generator with turn-to-turn short circuit fault for condition monitoring , 2013, 2013 IEEE ECCE Asia Downunder.

[5]  Scott D. Sudhoff,et al.  Analysis of Electric Machinery and Drive Systems , 1995 .

[6]  Louis-A. Dessaint,et al.  A New Model of Synchronous Machine Internal Faults Based on Winding Distribution , 2006, IEEE Transactions on Industrial Electronics.

[7]  X. Koutsoukos,et al.  Aircraft AC generators: Hybrid system modeling and simulation , 2008, 2008 International Conference on Prognostics and Health Management.

[8]  H. Henao,et al.  An equivalent internal circuit of the induction machine for advanced spectral analysis , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[9]  G.T. Heydt,et al.  On-line estimation of synchronous Generator parameters using a damper current observer and a graphic user interface , 2004, IEEE Transactions on Energy Conversion.

[10]  Claudio Bruzzese,et al.  Diagnosis of Eccentric Rotor in Synchronous Machines by Analysis of Split-Phase Currents—Part II: Experimental Analysis , 2014, IEEE Transactions on Industrial Electronics.

[11]  Antonio Griffo,et al.  Sensorless starting of a wound-field synchronous starter/generator for aerospace applications , 2012, IEEE Transactions on Industrial Electronics.

[12]  E. Acha,et al.  A Synchronous Generator Internal Fault Model Based on the Voltage-Behind-Reactance Representation , 2009, IEEE Transactions on Energy Conversion.

[13]  Aniruddha M. Gole,et al.  Development and Validation of a Comprehensive Synchronous Machine Model for a Real-Time Environment , 2010 .

[14]  Z.Q. Zhu,et al.  Improved transient simulation of salient-pole synchronous generators with internal and ground faults in the stator winding , 2005, IEEE Transactions on Energy Conversion.

[15]  F.C. Trutt,et al.  Condition monitoring of brushless three-phase synchronous generators with stator winding or rotor circuit deterioration , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[16]  Osama A. Mohammed,et al.  Inter-Turn Fault Detection in PM Synchronous Machines by Physics-Based Back Electromotive Force Estimation , 2013, IEEE Transactions on Industrial Electronics.

[17]  Wang Hongyu,et al.  Analysis and detection of turbo-generator stator turn-to-turn fault with multi-loop method , 2011, 2011 International Conference on Electrical Machines and Systems.

[18]  K. A. Folly,et al.  Generator saturation modelling using three saturation models , 2012, 2012 IEEE International Conference on Power and Energy (PECon).

[19]  K. N. Srivastava,et al.  Simulation of internal faults in high-voltage cable-wound generators , 2006 .

[20]  J. Nazarzadeh,et al.  A Detailed Analytical Model of a Salient-Pole Synchronous Generator Under Dynamic Eccentricity Fault , 2011, IEEE Transactions on Magnetics.

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

[22]  G.A. Capolino,et al.  Double-fed three-phase induction machine model for simulation of inter-turn short circuit fault , 2009, 2009 IEEE International Electric Machines and Drives Conference.

[23]  Sh. Shokri,et al.  Modeling and simulation of internal short circuit faults in large hydro generators with wave windings , 2011, 2011 International Conference on Power Engineering, Energy and Electrical Drives.

[24]  Thomas A. Lipo,et al.  Modelling and experimental validation of internal short-circuit fault in salient-pole synchronous machines using numerical gap function including stator and rotor core saturation , 2013 .