부유식 해상 풍력터빈의 네거티브 댐핑에 관한 연구
A Study on Negative Damping of a Floating Offshore Wind Turbine
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This paper presents a study on a negative damping phenomenon of a floating offshore wind turbine. The negative damping may lead to large resonant motion of floating offshore wind turbine. The reason of this effect is shown to be caused by a too fast blade-pitch controller compared with the rotational motion of the platform. By detuning the gain of PI controller and changing the constant torque after rated wind speed with blade-pitch control, the negative damping issue is solved, but the variations in the responses such as rotational speed or electrical power are increased. Therefore, sensitivity analysis of detuned gain is required for controller optimization.
Abstract
This paper presents a study on a negative damping phenomenon of a floating offshore wind turbine. The negative damping may lead to large resonant motion of floating offshore wind turbine. The reason of this effect is shown to be caused by a too fast blade-pitch controller compared with the rotational motion of the platform. By detuning the gain of PI controller and changing the constant torque after rated wind speed with blade-pitch control, the negative damping issue is solved, but the variations in the responses such as rotational speed or electrical power are increased. Therefore, sensitivity analysis of detuned gain is required for controller optimization.
참고문헌 (11)
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