The evaluation of fatigue behavior of wind turbines is always performed off-line, by post processing experimental acquisitions or simulation results. Moreover, the evaluation of potentiality of smart controls, that have the aim to avoid failures by reducing loads and consequently fatigue stresses, is performed in the same way. In this paper is presented a tool that allows to on-line evaluate and foresight fatigue potential damage by simply on time processing reference signals such as tower top acceleration or tower base bending moment. This evaluation technique is converted into a well know numerical code, oriented to control systems (Simulink). This step allowed to verify its capabilities and the possibility to realize its physical prototype and to use its results as input variable for active control strategies oriented to minimize damage. As test case a standard 5 MW wind turbine and a classical control logic were used
DYNAMIC BEHAVIOR OF WIND TURBINES. AN ON-BOARD EVALUATION TECHNIQUE TO MONITOR FATIGUE
F. Cianetti
;A. Cetrini;CORRADINI, MARIA LETIZIA;
2018
Abstract
The evaluation of fatigue behavior of wind turbines is always performed off-line, by post processing experimental acquisitions or simulation results. Moreover, the evaluation of potentiality of smart controls, that have the aim to avoid failures by reducing loads and consequently fatigue stresses, is performed in the same way. In this paper is presented a tool that allows to on-line evaluate and foresight fatigue potential damage by simply on time processing reference signals such as tower top acceleration or tower base bending moment. This evaluation technique is converted into a well know numerical code, oriented to control systems (Simulink). This step allowed to verify its capabilities and the possibility to realize its physical prototype and to use its results as input variable for active control strategies oriented to minimize damage. As test case a standard 5 MW wind turbine and a classical control logic were usedI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
