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On the Stator Slot Geometry of a Cable Wound Generator for Hydrokinetic Energy Conversion
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- Grabbe, Mårten (author)
- Uppsala universitet,Elektricitetslära,Division of Electricity
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- Eriksson, Sandra (author)
- Uppsala universitet,Elektricitetslära,Division of Electricity
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- Leijon, Mats (author)
- Uppsala universitet,Elektricitetslära,Division of Electricity
- (creator_code:org_t)
- Hindawi Limited, 2015
- 2015
- English.
- In: Scientific World Journal. - : Hindawi Limited. - 1537-744X .- 2356-6140.
- Journal article (peer-reviewed)
Abstract
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- In this paper, the stator slot geometry of a cable wound permanent magnet synchronous generator for hydro-kinetic energy conversion is evaluated. When designing generators, practical experience is of great importance to result in a realizable design. Therefore, practical experience from winding two cable wound generators is used to propose optimized dimensions of different parts in the stator slot geometry. A thorough investigation is performed through simulations of how small geometrical changes alter the generator performance. Simulations are performed by using the finite element method (FEM) to solve coupled field and circuit equations. The parameter study shows that small changes in the geometry can have large affect on the performance and the generator dimensions. Furthermore, it is concluded that the load angle is especially sensitive to small geometrical changes. A new generator design is proposed which shows improved efficiency, reduced weight and a possibility to decrease the expensive permanent magnet material by almost one fifth.
Keyword
- permanent magnet
- synchronous generator
- tidal energy
- hydro-kinetic energy conversion
- cable wound
- Engineering Science with specialization in Science of Electricity
- Teknisk fysik med inriktning mot elektricitetslära
Publication and Content Type
- ref (subject category)
- art (subject category)
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