Investigation Effects of Narrowing Rotor Pole Embrace to Efficiency and Cogging Torque at PM BLDC Motor

Cemil Ocak; Ilhan Tarimer; Adem Dalcali; Durmus Uygun

doi:10.18421/tem51-04

journal article Open Access Feb 28, 2016

Investigation Effects of Narrowing Rotor Pole Embrace to Efficiency and Cogging Torque at PM BLDC Motor

Cemil Ocak Ilhan Tarimer Adem Dalcali Durmus Uygun

TEM Journal pp. 25-31 · Association for Information Communication Technology Education and Science (UIKTEN)

View at Publisher Save 10.18421/tem51-04

Abstract

Engineers think that pole embrace size of a PM BLDC motor affects directly the efficiency and the torque. Dealing with theexperimental research, in the studywe have investigated the effects of narrowing rotor pole embrace step by step by changing sizes parametrically. By doing so, high efficiency and low cogging torque would have been obtained for a 20 W PM BLDC motor. In order to do this,pole arc to pole pitch ratio of magnets at the rotor poles has been changed parametrically (0.5 to 1) by genetic algorithm methodfirst. Then the electromagnetic field dispersions, output parameters of the motor, new rotor constructions have been obtained; and new pole embrace has been derived from the variation of pole arc to pole pitch ratio. We have also calculatedthe magnetic flux distribution, output power, torque, cogging torque and efficiency values analytically and the effects of new pole embrace to motor efficiency and torque have been simulated. The developed 18 slots, 6 poles, surface mounted inner runner configuration rotor machine is proposed as to be used insmall dentistry apparatus.

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Details

Published: Feb 28, 2016
Pages: 25-31
License: View

Authors

C

Cemil Ocak

Gazi University,Vocational College of Technical Sciences, 06374, Ankara, Turkey

I

Ilhan Tarimer

Muğla Sıtkı Koçman University, Information systems Engineering, 48000, Muğla, Turkey

A

Adem Dalcali

Karabük University, Electrical and Electronics Engineering Department, 78050 Karabük, Turkey

D

Durmus Uygun

Gediz University, Electrical and Electronics Engineering Department 35665 Izmir, Turkey

Cite This Article

Cemil Ocak, Ilhan Tarimer, Adem Dalcali, et al. (2016). Investigation Effects of Narrowing Rotor Pole Embrace to Efficiency and Cogging Torque at PM BLDC Motor. TEM Journal, 25-31. https://doi.org/10.18421/tem51-04

Investigation Effects of Narrowing Rotor Pole Embrace to Efficiency and Cogging Torque at PM BLDC Motor

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