EPE Association: EPE 2013 - LS4f: Synchronous, Permanent Magnet Synchronous and brushless DC motors

EPE 2013 - LS4f: Synchronous, Permanent Magnet Synchronous and brushless DC motors
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 10: Electrical machines > EPE 2013 - LS4f: Synchronous, Permanent Magnet Synchronous and brushless DC motors

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   Design considerations of flux-switching machines with permanent magnet or dc excitation
By Yang TANG, Esin ILHAN, Johan PAULIDES, Elena LOMONOVA [View]
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Abstract: The characteristics of flux-switching permanent magnet machines (FSPMM) and dc-excited flux-switching machines (DCE-FSM) are different, leading to different principles for the machine design. In this paper, comparative analysis is performed on the two types of machines using both analytical and numerical methods. Differences between FSPMM and DCEFSM are found in correlations between certain parameters and the machine performance as well as in the performance limits. Regarding the selection and design of FSMs for certain applications, conclusions are drawn that compared to FSPMM, a DCE-FSM is generally more capable in applications where a wide speed range is required, while an FSPMM can usually provide a larger torque than the DCE-FSM in the same volume. Furthermore, for both machines the torque density can be optimized by minimizing the slot number and maximizing the radial dimensions, however, the performance of DCE-FSM presents a higher sensitivity with respect to these parameters than that of FSPMM.

   Loss Analysis and Performance Improvement of Trial SPM type Magnetic Gear
By Michinari FUKUOKA, Kenji NAKAMURA, Osamu ICHINOKURA [View]
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Abstract: Magnetic gears are becoming attractive since they offer advantages such as low vibration and acoustic noise, and low maintenance operation in comparison with conventional mechanical gears. Planetary type magnetic gears, especially, have larger transmission torque than the other types. Therefore, the planetary type magnetic gears are expected to be put into practical use. In this paper, first, torque characteristics and efficiency of a planetary type magnetic gear with surface–mounted permanent magnet (SPM) are calculated by finite element analysis (FEA). Next, experimental results of a prototype magnetic gear manufactured on the basis of the FEA results are indicated. Finally, efficiency improvement of the prototype gear is demonstrated based on the FEA and experimental results. The improved prototype gear has achieved high efficiency of over 90\%.

   Performance Comparison of the Permanent Magnet Assisted Synchronous Reluctance Motor and the Double Magnet Synchronous Motor
By Dany PRIETO, Benjamin DAGUSE, Philippe DESSANTE, Jean-Claude VANNIER [View]
[Download]

Abstract: This paper presents a method for the comparison of two kinds of permanent magnet synchronous motors. The study also includes the selection of permanent magnet type: ferrite or NdFeB. The aim is to maximize the performance (average torque and power factor) of these motors at equal cost. The analysis is done using Finite Element Method.

EPE 2013 - LS4f: Synchronous, Permanent Magnet Synchronous and brushless DC motors
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 10: Electrical machines > EPE 2013 - LS4f: Synchronous, Permanent Magnet Synchronous and brushless DC motors
	[return to parent folder]

	Design considerations of flux-switching machines with permanent magnet or dc excitation By Yang TANG, Esin ILHAN, Johan PAULIDES, Elena LOMONOVA	[View] [Download]
Abstract: The characteristics of flux-switching permanent magnet machines (FSPMM) and dc-excited flux-switching machines (DCE-FSM) are different, leading to different principles for the machine design. In this paper, comparative analysis is performed on the two types of machines using both analytical and numerical methods. Differences between FSPMM and DCEFSM are found in correlations between certain parameters and the machine performance as well as in the performance limits. Regarding the selection and design of FSMs for certain applications, conclusions are drawn that compared to FSPMM, a DCE-FSM is generally more capable in applications where a wide speed range is required, while an FSPMM can usually provide a larger torque than the DCE-FSM in the same volume. Furthermore, for both machines the torque density can be optimized by minimizing the slot number and maximizing the radial dimensions, however, the performance of DCE-FSM presents a higher sensitivity with respect to these parameters than that of FSPMM.

	Loss Analysis and Performance Improvement of Trial SPM type Magnetic Gear By Michinari FUKUOKA, Kenji NAKAMURA, Osamu ICHINOKURA	[View] [Download]
Abstract: Magnetic gears are becoming attractive since they offer advantages such as low vibration and acoustic noise, and low maintenance operation in comparison with conventional mechanical gears. Planetary type magnetic gears, especially, have larger transmission torque than the other types. Therefore, the planetary type magnetic gears are expected to be put into practical use. In this paper, first, torque characteristics and efficiency of a planetary type magnetic gear with surface–mounted permanent magnet (SPM) are calculated by finite element analysis (FEA). Next, experimental results of a prototype magnetic gear manufactured on the basis of the FEA results are indicated. Finally, efficiency improvement of the prototype gear is demonstrated based on the FEA and experimental results. The improved prototype gear has achieved high efficiency of over 90\%.

	Performance Comparison of the Permanent Magnet Assisted Synchronous Reluctance Motor and the Double Magnet Synchronous Motor By Dany PRIETO, Benjamin DAGUSE, Philippe DESSANTE, Jean-Claude VANNIER	[View] [Download]
Abstract: This paper presents a method for the comparison of two kinds of permanent magnet synchronous motors. The study also includes the selection of permanent magnet type: ferrite or NdFeB. The aim is to maximize the performance (average torque and power factor) of these motors at equal cost. The analysis is done using Finite Element Method.