Optimal flux weakening in surface PM machines using fractional-slot concentrated windings

被引:317
作者
El-Refaie, AM [1 ]
Jahns, TM [1 ]
机构
[1] Univ Wisconsin, Dept Elect & Comp Engn, Madison, WI 53706 USA
关键词
concentrated; flux weakening; fractional slot; optimal; permanent magnet; surface; synchronous; windings;
D O I
10.1109/TIA.2005.847312
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A design approach is presented for achieving optimal flux-weakening operation in surface permanent-magnet (SPM) synchronous machines by properly designing the machine's stator windings using concentrated, fractional-slot stator windings. This technique makes it possible to significantly increase the machine inductance in order to achieve the critical condition for providing wide speed ranges of constant-power operation. The conditions for optimal flux weakening can be achieved while simultaneously delivering sinusoidal line-to-line back-electromotive-force waveforms and low cogging torque. A closed-form analytical model is described that can be used to design SPM machines to achieve optimal flux-weakening conditions. This technique is applied to design a 6-kW SPM machine that achieves constant-power operation over a wide speed range. Performance characteristics of this machine are compared using both closed-form and finite-element analysis.
引用
收藏
页码:790 / 800
页数:11
相关论文
共 21 条
[1]  
AKITA H, 2003, C REC IEEE IAS ANN M, V1, P367
[2]   Rotor loss in permanent-magnet brushless AC machines [J].
Atallah, K ;
Howe, D ;
Mellor, PH ;
Stone, DA .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2000, 36 (06) :1612-1618
[3]  
CROS J, 2003, C REC IEEE IAS ANN M, V3, P1933
[4]   Synthesis of high performance PM motors with concentrated windings [J].
Cros, M ;
Viarouge, P .
IEEE TRANSACTIONS ON ENERGY CONVERSION, 2002, 17 (02) :248-253
[5]  
ELREFAIE AM, 2005, UNPUB P IEEE IAS ANN
[6]  
Hendershot JR, 1994, DESIGN BRUSHLESS PER
[7]   DESIGN OF CURRENTS TO REDUCE TORQUE RIPPLE IN BRUSHLESS PERMANENT-MAGNET MOTORS [J].
HUNG, JY ;
DING, Z .
IEE PROCEEDINGS-B ELECTRIC POWER APPLICATIONS, 1993, 140 (04) :260-266
[8]   Permanent-magnet machines with powdered iron cores and prepressed windings [J].
Jack, AG ;
Mecrow, BC ;
Dickinson, PG ;
Stephenson, D ;
Burdess, JS ;
Fawcett, N ;
Evans, JT .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2000, 36 (04) :1077-1084
[9]  
Lipo T. A., 1996, INTRO AC MACHINE DES
[10]  
Liwschitz M.M., 1943, AIEE T, V62, P664