Dynamic model for full-converter wind turbines employing permanent magnet alternators

Permanent magnet alternators are gaining ground in the wind turbine market due to their low maintenance requirements and suitability for offshore applications. This paper describes the development and testing of a dynamic model for full converter wind turbines employing permanent magnet alternators. The model described here is not proprietary and is a generic, manufacturer-independent model with no restrictions on its use. It can be implemented in any dynamic modeling software. Detailed representations of the wind turbine aerodynamics, mechanical drive-train, permanent magnet alternator, power converters and controllers are employed. This paper also includes details of model testing, as well as a description of the model´s response to an event in the dynamic time scale.