Accurate, dynamic wind generation models are critical to assessing the impact of large wind power installations on a power system's stability. Model validation was a key issue of IEA Wind Task 21. The task began in 2002 and developed a systematic approach for benchmark testing of models.
The Task's accomplished the following objectives:
- Established an international forum for exchanging knowledge and experience within the field of wind farm modelling for power system studies
- Developed, described, and validated wind farm models.
- Set-up and operated a common database for benchmark testing of wind turbine and wind farm models, as an aid for securing good-quality models.
As a result of their efforts, Task 21 also completed and circulated the second edition of IEC 61400-21 (Measurements and assessment of power quality characteristics of grid connected with turbines) in 2008.