DESIGN AND PERFORMANCE COMPARISON OF FOUR-POLE BRUSHLESS DC MOTORS WITH DIFFERENT POLE/SLOT COMBINATIONS

Yıl 2018, Cilt: 3 Sayı: 3, 69 - 78, 01.01.2019

Cemil Ocak

Öz

When the design
process of the brushless motor is examined, attention must be paid to the
correct choice of magnet material, internal or external rotor structure and the
choice of core and winding structure. In addition to all these, the number of
phases, the number of rotor poles, and the choice of slots configurations
depending on them also have great importance. For this reason, to achieve
optimum design, it is necessary to analyze all possible designs with different
pole/slot configurations that can accommodate similar power and speed
expectations. In this study, three different designs have been realized with
different pole/slot configurations for four-pole, internal rotor brushless DC
motors, which are frequently used in many different applications today.
Designed motors have been analyzed with Finite Element Method to obtain the
cogging torque, efficiency and active material costs. All motors that are
analyzed have 100 W, 3000 rpm, 4/6, 4/12 and 4/15 pole/slot configurations
respectively.

Anahtar Kelimeler

brushless DC motor, pole/slot combinations, efficiency, internal rotor

Kaynakça

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