Fault Detection in the Blade and Pitch System of a Wind Turbine with H2 PI Observers

12th European Workshop on Advanced Control and Diagnosis

Sales-Setién, Ester^1 ; Peñarrocha, Ignacio^1 ; Dolz, Daniel^1 ; Sanchis, Roberto^1

Dept. of Industrial Systems Engineering and Design, Universitat Jaume i, Castelló, Spain^1

关键词: Detection time;    False alarm rate;    Fault detector;    Measurement Noise;    Minimum detectable faults;    PI observer;    Trade off;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/659/1/012033/pdf
DOI  :  10.1088/1742-6596/659/1/012033

来源: IOP

【 摘 要 】

In this work, we present a fault detection strategy applicable to the blade and pitch system in offshore wind turbines. First, we model the system and possible faults and propose a PI observer to identify the faults. Then, the observer is designed accounting the sensors measurement noise, and addressing a trade off between the needs of false alarm rate, minimum detectable fault and detection time. By means of a well known benchmark, several simulations show the goodness of the approach and its flexibility to explicitly fix the fault detector performance.