Title :
Comparative design of radial and transverse flux PM generators for direct-drive wind turbines
Author :
Bang, Deok-je ; Polinder, Henk ; Shrestha, Ghanshyam ; Ferreira, Jan Abraham
Author_Institution :
Electr. Power Process., Delft Univ. of Technol., Delft
Abstract :
The aim of this paper is to assess the radial flux permanent magnet (RFPM) and transverse flux permanent magnet (TFPM) generators for large direct-drive wind turbines. For the assessment, the electromagnetic design of RFPM and TFPM generators is done. The analytical design result of a TFPM generator is compared with the experimental result. A RFPM machine concept and four different TFPM machine concepts are designed electromagnetically for 5 MW direct-drive wind turbines. These machines are assessed with criteria such as the cost, the mass, the copper loss, the power/mass ratio, the power/cost ratio, the cost/mass ratio and the mass/torque ratio.
Keywords :
motor drives; permanent magnet generators; wind turbines; copper loss; cost-mass ratio; direct-drive wind turbines; electromagnetic design; mass-torque ratio; power 2 MW; power-cost ratio; power-mass ratio; radial flux permanent magnet generators; transverse flux permanent magnet generators; Copper; Costs; Permanent magnets; Power generation; Radio frequency; Rotors; Topology; Torque; Wind energy generation; Wind turbines;
Conference_Titel :
Electrical Machines, 2008. ICEM 2008. 18th International Conference on
Conference_Location :
Vilamoura
Print_ISBN :
978-1-4244-1735-3
Electronic_ISBN :
978-1-4244-1736-0
DOI :
10.1109/ICELMACH.2008.4800027
