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Title: Design of a novel consequent-pole transverse-flux machine with improved permanent magnet utilization
Authors: Zhao, X 
Niu, SX 
Keywords: Consequent pole
Permanent magnet (PM)
Transverse-flux machine (TFM)
Issue Date: 2017
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on magnetics, 2017, v. 53, no. 11, 8110405 How to cite?
Journal: IEEE transactions on magnetics 
Abstract: Severe leakage flux is a long-existed drawback in the transverse-flux permanent magnet machines (TFPMs), which results in a low permanent magnet (PM) utilization rate and prominent cogging torque in TFPMs. Aiming to solve this problem, this paper presents a novel consequent-pole transverse-flux machine (CP-TFM). The key is to artificially shift the upper and lower salient-pole rotors with a half-pole pitch and connect them with a ring-shaped core. Therefore, a complementary magnetic circuit is constructed to reduce the flux leakage between the adjacent poles as well as improve the PM utilization rate. To verify the feasibility of design, a 3-D finite-element model is established and its electromagnetic performance is evaluated. With the same peripheral dimension and copper loss, a quantitative comparison is carried out between the proposed CP-TFM and conventional TFPM. Finite-element simulation results reveal that compared to its contrast, the proposed solution can almost double the PM utilization ratio and effectively reduce the cogging torque.
Description: IEEE International Magnetics Conference (Intermag), Dublin, Ireland, Apr 24-28, 2017
ISSN: 0018-9464
EISSN: 1941-0069
DOI: 10.1109/TMAG.2017.2707395
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