作者: Majd Saied , Hassan Shraim , Clovis Francis , Isabelle Fantoni , Benjamin Lussier
关键词: Coaxial 、 Actuator 、 Observer (special relativity) 、 Engineering 、 Torque 、 MATLAB 、 Actuator fault 、 Control theory 、 Control system 、 Control engineering
摘要: This paper presents a fault diagnosis strategy for actuators faults in an octorotor unmanned aerial vehicle (UAV) using sliding modes techniques. First, system states are estimated second order sliding-mode observer (SOSMO) based on the modified super-twisting algorithm. Second, by considering control as unknown input. After convergence of observer, equivalent output injection is used to estimate input and thus identify losses actuators. The effectiveness this approach illustrated numerical simulations Matlab/Simulink, also real experimental application coaxial UAV.