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Power Factor Improvement of a Linear Vernier Permanent-Magnet Machine Using Auxiliary DC Field Excitation
Ching T.W.1; Chau K.T.2; Li W.2
2016-07-01
Source PublicationIEEE Transactions on Magnetics
ISSN00189464
Volume52Issue:7
Abstract

Vernier permanent-magnet (VPM) machines attract more and more attention recently because of the high-torque density and low-speed operation features. Due to the vernier structure for field modulation, its power factor (PF) usually is lower than that of the conventional PM machines. In this paper, a new linear VPM machine for improving the PF is proposed. By using an auxiliary dc field winding to provide an additional excitation, the air-gap flux excited by PMs is compensated. The proposed machine has a similar structure to the split-pole VPM machines with surface-mounted PMs. For implementing the auxiliary dc field winding, a parallel-hybrid excitation topology and consequent-pole PM machine structure are adopted. The machine topology, modeling, and operating principle are discussed. Both simulation and experimentation show that the PF of the machine can be improved by the auxiliary dc field excitation.

KeywordHybrid Excitation Linear Machine Permanent Magnet (Pm) Power Factor (Pf) Vernier Machine
DOI10.1109/TMAG.2016.2524533
URLView the original
Language英语
WOS Research AreaEngineering ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Physics, Applied
WOS IDWOS:000379924800202
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
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Citation statistics
Cited Times [WOS]:26   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Affiliation1.Universidade de Macau
2.The University of Hong Kong
Recommended Citation
GB/T 7714
Ching T.W.,Chau K.T.,Li W.. Power Factor Improvement of a Linear Vernier Permanent-Magnet Machine Using Auxiliary DC Field Excitation[J]. IEEE Transactions on Magnetics,2016,52(7).
APA Ching T.W.,Chau K.T.,&Li W..(2016).Power Factor Improvement of a Linear Vernier Permanent-Magnet Machine Using Auxiliary DC Field Excitation.IEEE Transactions on Magnetics,52(7).
MLA Ching T.W.,et al."Power Factor Improvement of a Linear Vernier Permanent-Magnet Machine Using Auxiliary DC Field Excitation".IEEE Transactions on Magnetics 52.7(2016).
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