Sensor Fault-Tolerant Control of a Drivetrain Test Rig via an Observer-Based Approach within a Wind Turbine Simulation Model

European Workshop on Advanced Control and Diagnosis

Georg, Sören^1 ; Heyde, Stefan^1 ; Schulte, Horst^1

HTW Berlin, School of Engineering i, Control Engineering, Wilhelminenhofstr. 75A, Berlin

12459, Germany^1

关键词: Experimental set up;    Fault reconstruction;    Fault tolerant control;    Measured values;    Rapid control prototyping;    Sliding mode observers;    Speed controller;    Wind turbine simulation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/570/8/082004/pdf
DOI  :  10.1088/1742-6596/570/8/082004

来源: IOP

【 摘 要 】

This paper presents the implementation of an observer-based fault reconstruction and fault-tolerant control scheme on a rapid control prototyping system. The observer runs in parallel to a dynamic wind turbine simulation model and a speed controller, where the latter is used to control the shaft speed of a mechanical drivetrain according to the calculated rotor speed obtained from the wind turbine simulation. An incipient offset fault is added on the measured value of one of the two speed sensors and is reconstructed by means of a Takagi-Sugeno sliding- mode observer. The reconstructed fault value is then subtracted from the faulty sensor value to compensate for the fault. The whole experimental set-up corresponds to a sensor-in-the-loop system.