Design of a 10 MW multi-phase PM synchronous generator for direct-drive wind turbines

Author

Damiano, Alfonso ; Marongiu, Ignazio ; Monni, Andrea ; Porru, Mario

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Cagliari, Cagliari, Italy

fYear

2013

fDate

10-13 Nov. 2013

Firstpage

5266

Lastpage

5270

Abstract

This paper presents the preliminary design of a 10 MW permanent magnet synchronous generator (PMSG) for off-shore direct drive wind turbines (DDWT). In order to improve the DDWT torque quality, energy efficiency, power management, fault tolerance and reliability a twelve-phase PMSG made of four independent three-phase star connected subsystems has been considered. With the aim of satisfying the several constraints related to cogging torque reduction, stator and rotor diameter limitation, low speed operation and magnetic decoupling of four three-phase subsystems, a multi-star fractional-slot tooth concentrated winding PMSG has been designed. The analytical results have been validated by means of Finite Element Analysis (FEA) highlighting the worth and effectiveness of the proposed configuration.

Keywords

electric drives; fault tolerance; finite element analysis; offshore installations; permanent magnet generators; power generation reliability; rotors; stators; synchronous generators; torque; wind turbines; DDWT torque quality; FEA; cogging torque reduction; energy efficiency; fault tolerance; finite element analysis; independent three-phase star-connected subsystems; low-speed operation; magnetic decoupling; multiphase PM synchronous generator design; multistar fractional-slot tooth concentrated winding PMSG; off-shore DDWT; off-shore direct drive wind turbines; permanent magnet synchronous generator; power 10 MW; power management; reliability; rotor diameter limitation; stator diameter limitation; twelve-phase PMSG; Rotors; Stator windings; Torque; Transient analysis; Wind turbines; Windings; Motor Design; Multi-phase electrical machines; PM synchronous generator; wind generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE

Conference_Location

Vienna

ISSN

1553-572X

Type

conf

DOI

10.1109/IECON.2013.6699991

Filename

6699991