Design and determination of stator geometry for axial flux permanent magnet free rod rotor synchronous motor
Author
Kalender O.
Ege, Y.
Nazlibilek, S.
Date
2011Source Title
Measurement: Journal of the International Measurement Confederation
Print ISSN
0263-2241
Volume
44
Issue
9
Pages
1753 - 1760
Language
English
Type
ArticleItem Usage Stats
128
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114
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Abstract
During designing a new axial flux permanent magnet free rod rotor synchronous motor, it is important to know before hand in which phase the largest angular velocity can occur, what is the ways to reduce the power consumption, how to achieve to increase or decrease the rotation speed by changing the core geometry. Therefore, presenting these preliminary information that are necessary for the design of a free rod rotor synchronous motor to the researchers is the aim of this work. In this respect, this study presents the design and geometrical dimensions of the stator for a new synchronous motor which is an axial flux permanent magnet free rod machine with three, four, five and six phases. This type of motors are an innovative approach especially for the applications used in industrial stirrers. Each type of stator is designed such that it has an appropriate number of phases. The rotating magnetic field over the stator is established by a PIC based microcontroller feeding the interface circuit to the stator wounds. The maximum angular speeds of bar magnet rotors with four different lengths and masses are calculated theoretically and determined experimentally. In addition, the effects of the distance between the rotor and stator, the angular speed of the rotor within the limits of the operation, and the volume of the liquid to be stirred to the power applied are investigated. Furthermore, the effects of the lengths and angular speeds of the bar magnet rotors to the distance between the rotor and stator are determined. In the light of the information obtained and taking into account the power used, the most appropriate parameters and variables such as the stator geometry changing with the phase used, the length of rotor, the distance between the rotor and stator and the angular speeds of rotor are determined. © 2011 Elsevier Ltd. All rights reserved.
Keywords
Rotating magnetic fieldRotor
Stator
Stirrer
Synchronous motors
Angular speed
Axial flux permanent magnet
Bar magnets
Geometrical dimensions
Innovative approaches
Interface circuits
Preliminary information
Rotating magnetic fields
Rotation speed
Stirrer
Design
Electric motors
Geometry
Logic circuits
Magnetic devices
Magnetic fields
Permanent magnets
Rotation
Rotors (windings)
Speed
Stators
Synchronous motors
Permalink
http://hdl.handle.net/11693/21733Published Version (Please cite this version)
http://dx.doi.org/10.1016/j.measurement.2011.07.014Collections
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