Comparison of Cobalt-Iron and Silicon-Iron Laminations for a Wave Energy Application
Paper in proceeding, 2022

This paper evaluates an electric generator manufactured of cobalt-iron laminations used for a wave energy application. The properties of the two cobalt-iron designs are compared with a reference machine, which employs conventional electric steel laminations. Operation trajectories and machine losses, as well as the annual energy production and the losses are obtained through finite element analysis. Furthermore, the investment costs are calculated and a simple life cycle cost analysis is performed. The results state that, despite the superior induction properties, the cobalt-iron results in higher losses, therefore the design variant manufactured fully of the cobalt-iron laminations have high losses throughout the operation. Strategic use of the cobalt-iron laminations only in the rotor results in decreased machine losses, however due to the high investment cost, the life cycle cost of the cobalt-iron rotor design is higher than that of the reference design.

Renewable energy sources

Electric machines

Permanent magnet machines

Wave power

Generators

Author

Alexandra Tokat

Lund University

Torbjörn Thiringer

Chalmers, Electrical Engineering, Electric Power Engineering

2022 International Conference on Electrical Machines, ICEM 2022

1730-1736
9781665414326 (ISBN)

2022 International Conference on Electrical Machines, ICEM 2022
Valencia, Spain,

Subject Categories

Aerospace Engineering

Other Environmental Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/ICEM51905.2022.9910842

More information

Latest update

1/3/2024 9