The speaker presents the design and testing of a 250-kW medium-speed brushless doubly-fed induction generator (DFIG) and its associated power electronics and control systems. The experimental tests confirm the design and show the system's steady-state and dynamic performance. The medium-speed brushless DFIG, in combination with a simplified two-stage gear-box, promises a low-cost, low-maintenance and reliable drive train for wind turbine applications.
