Title :
Electromagnetic design study of 10 MW-class wind turbine generators using circular superconducting field coils
Author :
Quddes, Mohammad Rashidul ; Sekino, Masaki ; Ohsaki, Hiroyuki
Author_Institution :
Grad. Sch. of Eng., Univ. of Tokyo, Tokyo, Japan
Abstract :
A new rotor design has been proposed for wind turbine generators using circular superconducting (SC) field coils. The target power output is 10 MW for 10 rpm. A fundamental 3D FEM parametric study has been carried out to reveal the electromagnetic characteristics of the machines. As machine diameter & pole number are the key parameters for electric machines, they were studied precisely. Electromagnetic force and hoop stress were also calculated for rotor coil models. A simple stator winding design has been proposed and generator characteristics were analyzed. Minimization of superconducting wire length and machine size were the highest priority for the electromagnetic design analysis. Though we focused on air-core models in this research, back-iron models were also designed to understand the effect and advantages of the back-iron.
Keywords :
electromagnetic forces; finite element analysis; rotors; superconducting coils; turbogenerators; wind turbines; 3D FEM parametric study; air-core model; back-iron model; circular superconducting field coil; electromagnetic characteristics; electromagnetic design analysis; electromagnetic force; machine size minimization; pole number; power 10 MW; rotor coil model; rotor design; stator winding design; superconducting wire length minimization; wind turbine generator; Atmospheric modeling; Generators; Iron; Stator windings; Superconducting coils; Superconducting filaments and wires;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-1044-5
DOI :
10.1109/ICEMS.2011.6073420
