A study of converter rating for Brushless DFIG wind turbines

This paper studies the converter rating requirement of a Brushless Doubly-Fed Induction Generator for wind turbine applications by considering practical constraints such as generator torque-speed requirement, reactive power management and grid low-voltage ride-through (LVRT). Practical data have been used to obtain a realistic system model of a Brushless DFIG wind turbine using steady-state and dynamic models. A converter rating optimization is performed based on the given constraints. The converter current and voltage requirements are examined and the resulting inverter rating is compared to optimization algorithm results. In addition, the effects of rotor leakage inductance on LVRT performance and hence converter rating is investigated.

[1]  H. Voltolini,et al.  Performance Analysis with Power Factor Compensation of a 75 kW Brushless Doubly Fed Induction Generator Prototype , 2007, 2007 IEEE International Electric Machines & Drives Conference.

[2]  H. Polinder,et al.  Comparison of direct-drive and geared generator concepts for wind turbines , 2005, IEEE International Conference on Electric Machines and Drives, 2005..

[3]  Peter Tavner,et al.  Symmetrical low voltage ride-through of a 250 kW brushless DFIG , 2012 .

[4]  X. Wang,et al.  Studies of inverter ratings of BDFM adjustable speed drive or generator systems , 2005, 2005 International Conference on Power Electronics and Drives Systems.

[5]  P. C. Roberts,et al.  Performance of the bdfm as a generator and motor , 2005 .

[6]  Ehsan Abdi,et al.  Dynamic analysis of the Brushless Doubly-Fed Induction Generator during symmetrical three-phase voltage dips , 2009, 2009 International Conference on Power Electronics and Drive Systems (PEDS).