This study presents the performance analysis 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 and grid low-voltage ride-through capability. The medium-speed brushless DFIG in combination with a simplified two-stage gearbox promises a low-cost low-maintenance and reliable drivetrain for wind turbine applications.
Abdi, E., McMahon, R., Malliband, P., Shao, S., Mathekga, M. E., Tavner, P., ... Tatlow, M. (2013). Performance analysis and testing of a 250 kW medium-speed brushless doubly-fed induction generator. IET Renewable Power Generation , 7(6), 631-638. https://doi.org/10.1049/iet-rpg.2012.0234