EXTENSION OF WINDING FUNCTION THEORY FOR RADIAL AND AXIAL NON-UNIFORM AIR GAP IN SALIENT POLE SYNCHRONOUS MACHINES

被引:5
作者
Akbari, H. [1 ]
Meshgin-Kelk, H. [2 ]
Milimonfared, J. [3 ]
机构
[1] Islamic Azad Univ, Dept Elect Engn, Sci & Res Branch, Tehran, Iran
[2] Tafresh Univ, Dept Elect Engn, Tafresh, Iran
[3] Amirkabir Univ Technol, Dept Elect Engn, Tehran, Iran
关键词
FINITE-ELEMENT-ANALYSIS; INDUCTION MACHINES; DYNAMIC SIMULATION; FAULT-DIAGNOSIS; ROTOR-BAR; ECCENTRICITY; STATOR; SRM;
D O I
10.2528/PIER11011201
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, to calculate the salient pole machine inductances under radial and axial non-uniformity, a new method is developed. The method, an extension of the modified winding function theory to 3D, allows studying salient pole machines with radial and axial non-uniform air gap considering more realistic mean radius of the air gap. By using the developed method and a precise geometrical model, inductances of a salient pole machine with inclined rotor are calculated. Inductances are evaluated and effects of several asymmetries on inductances are shown. Calculated inductances are used in a coupled electromagnetic model, for simulation of a salient pole machine under healthy and different inclined eccentricity conditions. Simulation results show that the 19th stator current harmonic can be detected to alarm for inclined rotors. Experimental results that validate the theoretical and simulation results are presented.
引用
收藏
页码:407 / 428
页数:22
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