A Novel Flux Focusing Magnetically Geared Machine with Reduced Eddy Current Loss
AbstractThis paper proposes a novel flux focusing magnetically geared (MG) machine for wind power generation, considering the permanent magnets (PMs) eddy current loss and the balance between the pull-out torque of MG machine and the back-electromotive force (EMF)of the PM brushless machine. The PM eddy current loss in the two rotors of the conventional surface-mounted MG machine is calculated and analyzed by using finite-element method. By adopting serial-spoke structure in the inner rotor, a novel rotor structure for a MG machine is proposed to reduce the PM eddy current loss. Moreover, in order to balance the pull-out torque and the back-EMF, several serial-spoke structures and the main design parameters are investigated. Then, a quantitative comparison between the proposed topology and the conventional surface-mounted MG machine is performed. The analysis results indicate that the PM eddy current loss of the proposed MG machine can be significantly reduced and its pull-out torque and back-EMF can be balanced well. View Full-Text
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Liu, J.; Zhao, W.; Ji, J.; Liu, G.; Tao, T. A Novel Flux Focusing Magnetically Geared Machine with Reduced Eddy Current Loss. Energies 2016, 9, 904.
Liu J, Zhao W, Ji J, Liu G, Tao T. A Novel Flux Focusing Magnetically Geared Machine with Reduced Eddy Current Loss. Energies. 2016; 9(11):904.Chicago/Turabian Style
Liu, Jin; Zhao, Wenxiang; Ji, Jinghua; Liu, Guohai; Tao, Tao. 2016. "A Novel Flux Focusing Magnetically Geared Machine with Reduced Eddy Current Loss." Energies 9, no. 11: 904.
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