TY - JOUR

T1 - Feasibility study of 5MW superconducting wind turbine generator

A1 - Abrahamsen,Asger Bech

A1 - Jensen,Bogi Bech

A1 - Seiler,E.

A1 - Mijatovic,Nenad

A1 - Rodriguez Zermeno,Victor Manuel

A1 - Andersen,Niels Hessel

A1 - Østergaard,Jacob

AU - Abrahamsen,Asger Bech

AU - Jensen,Bogi Bech

AU - Seiler,E.

AU - Mijatovic,Nenad

AU - Rodriguez Zermeno,Victor Manuel

AU - Andersen,Niels Hessel

AU - Østergaard,Jacob

PB - Elsevier BV North-Holland

PY - 2011

Y1 - 2011

N2 - The feasibility of installing a direct drive superconducting generator in the 5MW reference offshore wind turbine of the National Renewable Energy Laboratory (NREL) has been examined. The engineering current densities Je obtained in a series of race track coils have been combined with magnetization measurements to estimate the properties of suitable field coils for a synchronous generator, which is more light weight than the conventional used combination of a gear box and a fast rotating generator. An analytical model and finite element simulations have been used to estimate the active mass of generators with varying number of poles. A 24 pole machine with an outer diameter of 4.2m and active length and mass of 1.2m and 34 tons is suggested possible, if a Je=300A/mm2 can be obtained in B=4T pointing to an operation temperature around 40K.

AB - The feasibility of installing a direct drive superconducting generator in the 5MW reference offshore wind turbine of the National Renewable Energy Laboratory (NREL) has been examined. The engineering current densities Je obtained in a series of race track coils have been combined with magnetization measurements to estimate the properties of suitable field coils for a synchronous generator, which is more light weight than the conventional used combination of a gear box and a fast rotating generator. An analytical model and finite element simulations have been used to estimate the active mass of generators with varying number of poles. A 24 pole machine with an outer diameter of 4.2m and active length and mass of 1.2m and 34 tons is suggested possible, if a Je=300A/mm2 can be obtained in B=4T pointing to an operation temperature around 40K.

KW - Superconducting generator

KW - Offshore wind turbine

KW - Race track coils

U2 - 10.1016/j.physc.2011.05.217

DO - 10.1016/j.physc.2011.05.217

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

SN - 0921-4534

IS - 21-22

VL - 471

SP - 1464

EP - 1469

ER -