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Variable speed pitch regulated horizontal axis wind turbines exhibit highly non-linear characteristics at high wind speeds presenting, a challenge for power regulation control. As turbine size increases and natural frequencies of the blades and tower decrease, these nonlinearities are increasingly problematic. Presented is a method for improving controller performance and feasibility for very large turbines. The implementation of a gain scheduled controller for regulation of a 5MW exemplar wind turbine is presented and shown to improve controller performance by accounting for the non-linearities present at low frequencies in above rated wind speeds. The realisation and an assessment of performance of the improved controller are demonstrated.
|Title of host publication||European Wind Energy Association, Scientific Proceedings|
|Publisher||European Wind Energy Association|
|Number of pages||7|
|Publication status||Published - Mar 2014|
|Event||European Wind Energy Association 2014 Annual Conference - Barcelona, Spain|
Duration: 10 Mar 2014 → 13 Mar 2014
|Conference||European Wind Energy Association 2014 Annual Conference|
|Abbreviated title||EWEA 2014|
|Period||10/03/14 → 13/03/14|
- gain scheduling
- turbine size
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