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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

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A gain-scheduled controller for improved power regulation of very large wind turbines

Thompson, David and Leithead, William (2014) A gain-scheduled controller for improved power regulation of very large wind turbines. In: European Wind Energy Association, Scientific Proceedings. European Wind Energy Association.

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Abstract

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.