Abstract:The majority of utility-scale horizontal-axis current turbines use either speed or pitch control to maintain a constant power output once the currents exceed a certain threshold: the turbine-specific "rated speed". In this study, we experimentally characterized power performance and turbine loading over a range of blade pitch settings and tip-speed ratios for a three-bladed horizontal-axis turbine. We then implemented a control strategy to maintain power output in time-varying currents using blade pitch contro… Show more
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