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ROTOR CONTROL SYSTEM FOR REDUCING STRUCTURAL VIBRATIONS BASED ON M-BLADE TRANSFORMATION
ROTOR CONTROL SYSTEM FOR REDUCING STRUCTURAL VIBRATIONS BASED ON M-BLADE TRANSFORMATION
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机译:转子控制系统,用于降低基于M-Blade变换的结构振动
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摘要
The present invention relates to a rotor control system for actuating pitch of pitch adjustable rotor blades in order to reduce vibrations of a wind turbine element, e.g. tower vibrations. A pitch modification signal is determined which is based on an m-blade coordinate transformation, such as the Coleman transformation. The m-blade coordinate transformation taking as input a first signal and a second signal. The second signal is determined by filtering the first signal with a signal filter with a quadrature phase shift filter phase response.
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