Title :
Study of the rotor screen for a 12 MW superconducting direct-drive wind generator
Author :
Ying Zhen Liu ; Rong Hai Qu ; Zhe Zhu ; Jin Wang ; Hai Yang Fang
Author_Institution :
State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A rotor screen is employed in superconducting machines between field coils and armature windings, which can be made of magnetic or conductive materials. Since superconducting machines have better performances in torque density, efficiency and weight, detailed analysis of rotor screen is needed for the growing interests in superconducting wind generators. In this paper, the rotor screen of a 12 MW superconducting direct-drive wind generator with an air-cored rotor is discussed based on 2D Finite Element (FE) models, such as electromagnetic performances and mechanical performances.
Keywords :
electric generators; finite element analysis; rotors; superconducting coils; superconducting machines; wind power plants; 2D finite element models; air-cored rotor; armature windings; conductive materials; field coils; magnetic materials; power 12 MW; rotor screen; superconducting direct-drive wind generator; superconducting machines; torque density; Coils; Eddy currents; Generators; Iron; Rotors; Stators; eddy current losses; mechanical performance; rotor screen; shielding performance; short-circuit fault;
Conference_Titel :
Applied Superconductivity and Electromagnetic Devices (ASEMD), 2013 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-0068-8
DOI :
10.1109/ASEMD.2013.6780819
