Analysis of the dynamic behaviour of magnetic gear with nonlinear modelling for large wind turbines

Melaine Desvaux (1) , Roman Le Goff Latimier (2, 1) , Hamid Ben Ahmed (1) , Bernard Multon (1) , Stéphane Sire (3, 4)

1 SATIE - Systèmes et Applications des Technologies de l'Information et de l'Energie
2 ENS Rennes - École normale supérieure - Rennes
3 MMA
4 IRDL - Institut de Recherche Dupuy de Lôme

This article deals with the dynamic behaviour of magnetic gear. This study is based on a nonlinear analytical model of magnetic gear which gives an analytical expression of the magnetic torque for a step disturbance. From this expression, various criteria will be defined in order to reach a good performance of the magnetic gear with step or sinusoidal disturbance. These results will be compared with a nonlinear simulation. Simulations show that it is possible to have, in a transitory regime, a load angle higher than the limit load angle maintaining a coupling between the low speed and the high speed rotor. Simulations will illustrate the importance of defining design rules based on the system application domain. A high power wind turbine (MW) example is proposed. In that case studies, loads generated by wind induce strong disturbances.

Domaines: Vibrations [physics.class-ph]; Electromagnétisme

Melaine Desvaux, Roman Le Goff Latimier, Hamid Ben Ahmed, Bernard Multon, Stéphane Sire. Analysis of the dynamic behaviour of magnetic gear with nonlinear modelling for large wind turbines. XXII International Conference on Electrical Machines (ICEM), 2016, Sep 2016, Lausanne, France. ⟨hal-01598093⟩