Counter rotating ferrite based power generator for floating offshore wind turbines

A challenge with wind power is the use of rare earth metals for the generators, as there are environmental and supply based concerns regarding these. This project studies an alternative generator design, based on ferrite magnets, a material that is significantly cheaper and easily available. The project will develop a 24 MW generator, designed for floating wind power application. 

 

Purpose and goal

The GE4FOW project is developing a new generation of direct-drive permanent magnet generators for floating offshore wind power. The generators are free of rare earth metals, which makes them more sustainable and cost-effective. They are also designed to be used in new innovative concepts with counter-rotating turbines.

 

Expected effects and result

The GE4FOW project will develop a new generation of direct-drive permanent magnet generators for floating offshore wind power that are free of rare earth metals, more efficient and cost-effective than current generators. The new generators will be able to be placed in an air-filled underwater compartment, which will eliminate the need for a heavy nacelle on top of tower, contribute to stability and allow for more efficient use of marine space. The project is expected to lead to a 20% reduction in the Levelized Cost of Energy (LCOE) for floating offshore wind power.

 

Planned approach and implementation

The project will be executed in three main blocks: preliminary design, prototyping and testing. In the preliminary design phase will develop: a preliminary design of a 24MW generator and the control strategy for the electromagnetic side. In the prototyping and testing phase the different components of the generator and will manufactured, assembled and tested in a test bench at Uppsala University. In the dissemination and validation phase, the consortium will prepare the final report and disseminate the results, and validate the generator in a real-world environment.