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A double-sided linear primary permanent magnet vernier machine.

Du Y, Zou C, Liu X - ScientificWorldJournal (2015)

Bottom Line: The key of this new machine is the introduction of double stator and the elimination of translator yoke, so that the inductance and the volume of the machine can be reduced.Hence, the proposed machine offers improved power factor and thrust force density.The electromagnetic performances of the proposed machine are analyzed including flux, no-load EMF, thrust force density, and inductance.

View Article: PubMed Central - PubMed

Affiliation: School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China.

ABSTRACT
The purpose of this paper is to present a new double-sided linear primary permanent magnet (PM) vernier (DSLPPMV) machine, which can offer high thrust force, low detent force, and improved power factor. Both PMs and windings of the proposed machine are on the short translator, while the long stator is designed as a double-sided simple iron core with salient teeth so that it is very robust to transmit high thrust force. The key of this new machine is the introduction of double stator and the elimination of translator yoke, so that the inductance and the volume of the machine can be reduced. Hence, the proposed machine offers improved power factor and thrust force density. The electromagnetic performances of the proposed machine are analyzed including flux, no-load EMF, thrust force density, and inductance. Based on using the finite element analysis, the characteristics and performances of the proposed machine are assessed.

No MeSH data available.


Related in: MedlinePlus

Change of the no-load magnetic field distribution in the proposed machine with translator positions. (a) Translator position A. (b) Translator position B. (c) Translator position C. (d) Translator position D.
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fig7: Change of the no-load magnetic field distribution in the proposed machine with translator positions. (a) Translator position A. (b) Translator position B. (c) Translator position C. (d) Translator position D.

Mentions: The no-load magnetic field distribution is investigated based on finite-element method. Figure 7 shows the no-load magnetic field distribution of the DSLPPMV machine at four different translator positions within one stator tooth pitch. Position A is defined as the original translator position. Positions B, C, and D represent the translator moves to the right from position A by 1/4, 1/2, and 3/4 stator tooth pitch, respectively. It can be observed that the magnetic field distribution is similar to a two-pole machine. In other words, the machine has two effective poles, which agrees with the theoretical analysis. It can be also seen that the magnetic field moves 360° electrical angle when the translator moves just one stator tooth pitch, hence achieving the magnetic gear effect and high thrust force.


A double-sided linear primary permanent magnet vernier machine.

Du Y, Zou C, Liu X - ScientificWorldJournal (2015)

Change of the no-load magnetic field distribution in the proposed machine with translator positions. (a) Translator position A. (b) Translator position B. (c) Translator position C. (d) Translator position D.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4385675&req=5

fig7: Change of the no-load magnetic field distribution in the proposed machine with translator positions. (a) Translator position A. (b) Translator position B. (c) Translator position C. (d) Translator position D.
Mentions: The no-load magnetic field distribution is investigated based on finite-element method. Figure 7 shows the no-load magnetic field distribution of the DSLPPMV machine at four different translator positions within one stator tooth pitch. Position A is defined as the original translator position. Positions B, C, and D represent the translator moves to the right from position A by 1/4, 1/2, and 3/4 stator tooth pitch, respectively. It can be observed that the magnetic field distribution is similar to a two-pole machine. In other words, the machine has two effective poles, which agrees with the theoretical analysis. It can be also seen that the magnetic field moves 360° electrical angle when the translator moves just one stator tooth pitch, hence achieving the magnetic gear effect and high thrust force.

Bottom Line: The key of this new machine is the introduction of double stator and the elimination of translator yoke, so that the inductance and the volume of the machine can be reduced.Hence, the proposed machine offers improved power factor and thrust force density.The electromagnetic performances of the proposed machine are analyzed including flux, no-load EMF, thrust force density, and inductance.

View Article: PubMed Central - PubMed

Affiliation: School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China.

ABSTRACT
The purpose of this paper is to present a new double-sided linear primary permanent magnet (PM) vernier (DSLPPMV) machine, which can offer high thrust force, low detent force, and improved power factor. Both PMs and windings of the proposed machine are on the short translator, while the long stator is designed as a double-sided simple iron core with salient teeth so that it is very robust to transmit high thrust force. The key of this new machine is the introduction of double stator and the elimination of translator yoke, so that the inductance and the volume of the machine can be reduced. Hence, the proposed machine offers improved power factor and thrust force density. The electromagnetic performances of the proposed machine are analyzed including flux, no-load EMF, thrust force density, and inductance. Based on using the finite element analysis, the characteristics and performances of the proposed machine are assessed.

No MeSH data available.


Related in: MedlinePlus