Unified Modeling Technique for Axially Uniform and Nonuniform Eccentricity Faults in Three-Phase Squirrel Cage Induction Motors

被引:24
作者
Ojaghi, Mansour [1 ]
Mohammadi, Maryam [1 ]
机构
[1] Univ Zanjan, Dept Elect Engn, Zanjan 4537138791, Iran
关键词
Axial nonuniformity; eccentricity faults; experimental inspection; induction motors; modeling and simulation; WINDING FUNCTION-APPROACH; STATIC ECCENTRICITY; DYNAMIC SIMULATION; ROTOR SLOT; AIR-GAP; MACHINES; EXTENSION; DIAGNOSIS; INDUCTANCES;
D O I
10.1109/TIE.2017.2760280
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Many mechanical faults cause eccentricity in squirrel cage induction motors (SCIMs), so it is reasonable to design and implement reliable eccentricity fault diagnosis systems for the SCIMs. Accurate modeling and simulation techniques help to reach this aim more easily. It is common to assume that the eccentricity fault is uniform along the motor length when modeling and simulation that is often far from real situation. In this paper, experimental inspection is performed first to show that having the same severity of eccentricity at one end of the motor, the axially nonuniform eccentricity may produce lower fault indices than the axially uniform eccentricity. Then, the two-dimensional (2-D) modified winding function theory is presented and used to obtain analytic expressions for various self-/mutual inductances of the stator windings and the rotor meshes and their derivatives versus the rotor position. The expressions are applicable under various axially uniform and nonuniform eccentricities as well as the healthy condition. Multiple coupled circuit model is used along with these expressions to develop a comprehensive analytic model for the SCIMs. Simulation results obtained by this model are in good agreement with corresponding experimental results and confirm accuracy of the attained modeling and simulation technique.
引用
收藏
页码:5292 / 5301
页数:10
相关论文
共 45 条
[1]  
Ahmadian K, 2007, 2007 CONFERENCE PROCEEDINGS IPEC, VOLS 1-3, P630
[2]  
[Anonymous], [No title captured]
[3]  
[Anonymous], 2017, DEFLECTION MEASURING
[4]  
Bindu S, 2015, 2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON), P157, DOI 10.1109/CATCON.2015.7449526
[5]  
Bindu S, 2014, PROCEEDINGS OF THE 2014 INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY CONVERSION TECHNOLOGIES (ICAECT): INTELLIGENT ENERGY MANAGEMENT: TECHNOLOGIES AND CHALLENGES, P48, DOI 10.1109/ICAECT.2014.6757060
[6]   A 2-D model of the induction machine:: An extension of the modified winding function approach [J].
Bossio, G ;
De Angelo, C ;
Solsona, J ;
García, G ;
Valla, MI .
IEEE TRANSACTIONS ON ENERGY CONVERSION, 2004, 19 (01) :144-150
[7]   Modeling and Analysis of Unbalanced Magnetic Pull in Cage Induction Motors With Curved Dynamic Eccentricity [J].
Di, Chong ;
Bao, Xiaohua ;
Wang, Hanfeng ;
Lv, Qiang ;
He, Yigang .
IEEE TRANSACTIONS ON MAGNETICS, 2015, 51 (08)
[8]   Airgap-eccentricity fault diagnosis, in three-phase induction motors, by the complex apparent power signature analysis [J].
Drif, M'hamed ;
Cardoso, A. J. Marques .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2008, 55 (03) :1404-1410
[9]   Multisensor Wireless System for Eccentricity and Bearing Fault Detection in Induction Motors [J].
Esfahani, Ehsan Tarkesh ;
Wang, Shaocheng ;
Sundararajan, V. .
IEEE-ASME TRANSACTIONS ON MECHATRONICS, 2014, 19 (03) :818-826
[10]   Extension of winding function theory for nonuniform air gap in electric machinery [J].
Faiz, J ;
Tabatabaei, I .
IEEE TRANSACTIONS ON MAGNETICS, 2002, 38 (06) :3654-3657