Behaviour improvement during faults of fixed speed stall control induction generator wind turbines
Article first published online: 20 NOV 2008
Copyright © 2008 John Wiley & Sons, Ltd.
Volume 12, Issue 6, pages 527–541, September 2009
How to Cite
Garcia, J. M. and Domínguez-Navarro, J. A. (2009), Behaviour improvement during faults of fixed speed stall control induction generator wind turbines. Wind Energ., 12: 527–541. doi: 10.1002/we.311
- Issue published online: 15 SEP 2009
- Article first published online: 20 NOV 2008
- Manuscript Accepted: 24 OCT 2008
- Manuscript Revised: 18 AUG 2008
- Manuscript Received: 30 MAR 2008
- induction generator;
- power systems;
- static VAR compensators;
- transient stability;
- wind power generation
This paper describes a simple and economical way to improve the behaviour of a stall control wind turbine with fixed speed induction generator during faults. It proposes using the existing thyristor bridge and capacitors in combination with new resistors, to create a self-exciting system isolated from the grid during faults, controlling the terminal voltage and speed generator in order to reduce the reactive consumption and peak speed. This is possible as a result of the thyristor bridge and resistor acting as a variable load.
Dynamic simulations show that fault ride-through capability for symmetrical and asymmetrical faults of a stall wind turbine can be achieved by using this proposal. A comparison between this solution and the standard static compensator solution demonstrates that the proposed solution works better, mainly because of the absence of overspeed problems when the overspeed protection is set at around 1.04 p.u. (a typical level for these wind turbines). Copyright © 2008 John Wiley & Sons, Ltd.