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|Title:||A novel DC-coil-free hybrid-excited machine with consequent-pole PM rotor||Authors:||Wang, QS
DC coil free
|Issue Date:||2018||Publisher:||Molecular Diversity Preservation International (MDPI)||Source:||Energies, Apr. 2018, v. 11, no. 4, 700, p. 1-16 How to cite?||Journal:||Energies||Abstract:||This paper proposes a new DC coil free hybrid excited machine concept, which has no external field windings. The technical novelty is the integration of field windings and armature windings. DC bias current is injected into the excitation and the field windings in the traditional hybrid excited machine are eliminated. Compared with traditional hybrid-excited machines with additional field windings, the proposed machine can realize a higher slot utilization ratio, hence achieve a higher torque density and a wider flux adjusting range. Another advantage of the proposed machine is that the voltage drop associated with flux regulation is small due to the small DC resistance, and the torque generating capability at the flux regulating region can be improved accordingly. The rotor is specifically designed with magnet-iron sequences and a consequent-pole, in which the permanent magnet and iron pole are alternatively employed. A bi-directional flux modulating effect can be achieved, which can contribute to the magnetic coupling in the air-gap. Analytical derivation is used to describe the operating principle, and the proposed machine was optimally designed using the Tabu search algorithm. A prototype was made, and its performances investigated through experimental tests.||URI:||http://hdl.handle.net/10397/79915||EISSN:||1996-1073||DOI:||10.3390/en11040700||Rights:||© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The following publication Wang, Q. S., & Niu, S. X. (2018). A novel DC-coil-free hybrid-excited machine with consequent-pole PM rotor. Energies, 11(4), 700, 1-16 is available at https://dx.doi.org/10.3390/en11040700
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|Wang_DC-coil-free_Hybrid-excited_Consequent-pole.pdf||1.63 MB||Adobe PDF||View/Open|
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