Title :
Defining proper initial geometry of an 8 MW liquid-cooled direct-drive permanent magnet synchronous generator for wind turbine applications based on minimizing mass
Author :
Alexandrova, Y. ; Semken, S. ; Polikarpova, M. ; Pyrhönen, J.
Abstract :
The minimum mass of the active materials needed to build an 8 MW liquid-cooled direct-drive permanent-magnet synchronous generator (LC DD-PMSG) is sought. Proper set of generator dimensions is defined based on a constrained steepest descent method with variable step size. The design variables have been defined in terms of two quantities: stator length and the ratio of induced voltage to rated voltage (EMF factor).
Keywords :
gradient methods; permanent magnet generators; stators; synchronous generators; wind turbines; EMF factor; LC DD-PMSG; active materials; constrained steepest descent method; induced voltage to rated voltage ratio; liquid-cooled direct-drive permanent magnet synchronous generator; minimizing mass-based wind turbine applications; stator length; step size; Conductors; Generators; Linear programming; Stator windings; Stress; Torque; generator; optimization; wind turbine;
Conference_Titel :
Electrical Machines (ICEM), 2012 XXth International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4673-0143-5
Electronic_ISBN :
978-1-4673-0141-1
DOI :
10.1109/ICElMach.2012.6350036
