Analysis and Comparative Study of Flux Weakening Capability in Fractional-Slot Concentrated Windings

被引：27

作者：

Min, Seun Guy ^{[1
]}

Sarlioglu, Bulent ^{[1
]}

机构：

[1] Univ Wisconsin Madison, Wisconsin Elect Machines & Power Elect Consortium, Madison, WI 53705 USA

来源：

IEEE TRANSACTIONS ON ENERGY CONVERSION | 2018年 / 33卷 / 03期

关键词：

Concentrated windings; experiment; flux weakening; fractional-slot; inductance; permanent magnet motor; weakening factor; winding function; PERMANENT-MAGNET MACHINES; SURFACE PM MACHINES; DESIGN CONSIDERATIONS; FIELD DISTRIBUTION; ANALYTICAL-MODEL; COGGING TORQUE; ROTOR LOSS; MOTORS; VIBRATION; NOISE;

D O I：

10.1109/TEC.2017.2781718

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents a detailed investigation of the winding inductance and the flux weakening capability in fractional-slot motors equipped with concentrated windings. An analytical model has been developed for evaluating the winding inductance by merging existent theories. Subsequently, a simple factor called weakening factor, which is proportional to the d-axis inductance and the pole pair, has been introduced to indicate the level of the flux weakening capability for different pole/slot combinations in the case where the air gap or slot leakage inductance is the dominant component. From the comparative study, it is shown that the multiple 4-pole/3-slot, i.e., S-pp = 1/4, can have the highest flux weakening capability resulting from the highest air gap inductance. The experimental results from several prototype motors, together with finite element analysis, are employed to confirm the validity of key analyses discussed in the paper.

引用

页码：1025 / 1035

页数：11

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