Models of electrical drives for wind turbines
This project aims to develop models of the permanent magnet synchronous generator (PMSG) with internal faults to understand how the generator behaves in this state. By using the gained knowledge more effective detection systems can be designed which can limit any secondary damage. Both analytical models and finite element models has been developed for the most common (but also the most difficult to detect) internal fault: the turn-to-turn fault. After applying mathematical transformation methods on the analytical model of the PMSG with turn-to-turn fault it was shown that additional generator currents harmonics appears if the mathematical transformation was applied to the generator currents as well. This was confirmed using the finite element model. The current objective is to extent the models to more generator geometries and to test the developed models in more realistic scenarios.