A 5MW direct drive offshore wind turbine generator was studied and simulated using Vector Fields OPERA. This software allows calculation of the flux density, force, torque, and eddy currents in the machine at different rotor positions. Based on the data obtained from the model, initial assumptions could be validated. The selection of the type of generator was based on comparing different types of synchronous generators. Advantages and disadvantages are discussed with respect to the specified requirements, geometry and materials which define the different parts of the generator. Arguments for the suitable machine are listed and the modelling process presented. The model of the generator was improved by changing design parameters, e.g the position of the magnets or fitting additional I-Cores, and analyse the effect of it.
Proceedings of the 20th International Conference on Electrical Machines, 2012
Wind power generation; Transverse flux machine; inite element analysis
20th International Conference on Electrical Machines, 2012