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Development of ironless coreless axial flux permanent magnet generator / Yap Wee Leong

By:

Yap, Wee Leong

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2016Description: xv, 135 p. : ill. (some col.) ; 30 cm. + 1 CD-ROMISBN:

THE0005281(Local)

Subject(s):

Online resources:

Library access only

Dissertation note: Thesis (Master of Engineering) -- Universiti Malaysia Pahang – 2016 Abstract: a Axial flux permanent magnet generator is well known on application of wind turbine electricity generation. The elimination of some iron core usage in the axial flux permanent magnet generator had significantly improve the generator’s efficiency compare to the conventional generator. However, the presence of cog cause by the ferrite material within the generator is seen somehow restricting the application of the generator where low rotational torque is required. Cogging creates an attraction force between magnets and ferrite material in a generator. More power is required to overcome cogging before the generator can be spun continuously. With the increase of power output, the problem of cogging is also increased. Therefore, more power is required to overcome the increased torque. The research sought to fundamentally study the possibility of removing ferrite material in an electric generator. The generator was designed, fabricated and experimentally validated to qualify its no-load and loaded characteristics. The research began with fundamental studies on electric generator and eventually followed by the design concept. The concept was later analyzed in simulation mode by using finite element software to study its characteristics in order to determine its optimum arrangements. Based on the optimum design obtained in the finite element simulations, the generator was then developed and tested in experimental mode to qualify and quantify its qualitative and quantitative characteristics. Since the generator was made coreless and ironless, the cogging torque was therefore reduce to minimum. Results in both simulation and experimental modes showed good agreement between the two. The generator managed to generate a few hundred watts of power and the efficiency was rated to be approximately 78%. Based on the quantitative experiments, pure sinusoidal 3-phase voltage wave was captured on a scope. Cog-free motion was found to have demonstrated low starting torque spin. Hence, it can be concluded that it would be suitable for use in low torque application. Many applications can benefit from this generator such as in electric generation itself, wind turbine as well as applications in the automotive industry.

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Holdings ( 2 )
Title notes ( 4 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Thesis	UMPLIB PEKAN	CD 10584 \| FKM .Y37 2016 r Thesis (Browse shelf(Opens below))	1	Not for loan		0000116454
Thesis	UMPLIB PEKAN	FKM .Y37 2016 r Thesis (Browse shelf(Opens below))	1	Not for loan		0000116453

Faculty of Mechanical Engineering

Thesis (Master of Engineering) -- Universiti Malaysia Pahang – 2016

Bibliography : p. 124-130

a Axial flux permanent magnet generator is well known on application of wind turbine electricity generation. The elimination of some iron core usage in the axial flux permanent magnet generator had significantly improve the generator’s efficiency compare to the conventional generator. However, the presence of cog cause by the ferrite material within the generator is seen somehow restricting the application of the generator where low rotational torque is required. Cogging creates an attraction force between magnets and ferrite material in a generator. More power is required to overcome cogging before the generator can be spun continuously. With the increase of power output, the problem of cogging is also increased. Therefore, more power is required to overcome the increased torque. The research sought to fundamentally study the possibility of removing ferrite material in an electric generator. The generator was designed, fabricated and experimentally validated to qualify its no-load and loaded characteristics. The research began with fundamental studies on electric generator and eventually followed by the design concept. The concept was later analyzed in simulation mode by using finite element software to study its characteristics in order to determine its optimum arrangements. Based on the optimum design obtained in the finite element simulations, the generator was then developed and tested in experimental mode to qualify and quantify its qualitative and quantitative characteristics. Since the generator was made coreless and ironless, the cogging torque was therefore reduce to minimum. Results in both simulation and experimental modes showed good agreement between the two. The generator managed to generate a few hundred watts of power and the efficiency was rated to be approximately 78%. Based on the quantitative experiments, pure sinusoidal 3-phase voltage wave was captured on a scope. Cog-free motion was found to have demonstrated low starting torque spin. Hence, it can be concluded that it would be suitable for use in low torque application. Many applications can benefit from this generator such as in electric generation itself, wind turbine as well as applications in the automotive industry.