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Reduction of Cogging Torque in Dual Rotor Permanent Magnet Generator for Direct Coupled Wind Energy Systems
Author
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-13
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
In wind energy systems employing permanent magnet generator, there is an imperative need to reduce the cogging torque for smooth and reliable cut in operation.
In a permanent magnet generator, cogging torque is produced due to interaction of the rotor magnets with slots and teeth of the stator.
This paper is a result of an ongoing research work that deals with various methods to reduce cogging torque in dual rotor radial flux permanent magnet generator (DRFPMG) for direct coupled stand alone wind energy systems (SAWES).
Three methods were applied to reduce the cogging torque in DRFPMG.
The methods were changing slot opening width, changing magnet pole arc width and shifting of slot openings.
A combination of these three methods was applied to reduce the cogging torque to a level suitable for direct coupled SAWES.
Both determination and reduction of cogging torque were carried out by finite element analysis (FEA) using MagNet Software.
The cogging torque of DRFPMG has been reduced without major change in induced emf.
A prototype of 1 kW, 120 rpm DRFPMG was fabricated and tested to validate the simulation results.
The test results have good agreement with the simulation predictions.
American Psychological Association (APA)
Paulsamy, Sivachandran. 2014. Reduction of Cogging Torque in Dual Rotor Permanent Magnet Generator for Direct Coupled Wind Energy Systems. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1051884
Modern Language Association (MLA)
Paulsamy, Sivachandran. Reduction of Cogging Torque in Dual Rotor Permanent Magnet Generator for Direct Coupled Wind Energy Systems. The Scientific World Journal No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1051884
American Medical Association (AMA)
Paulsamy, Sivachandran. Reduction of Cogging Torque in Dual Rotor Permanent Magnet Generator for Direct Coupled Wind Energy Systems. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1051884
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051884