This paper proposes a generalized design procedure for the extended state observer (ESO) based sliding mode control voltage source converter (VSC) station. In this work, non-linear loads and external disturbances parameter perturbations of station is considered as an which are bounded. The ESO designed to reject include not only unmeasured system states but also modeling uncertainties. At same ...

Extensive use of wind turbine (WT) systems brings remarkable challenges to the stability and safety power systems. Due difficulty complexity modeling such large plants, model-independent strategies are preferred for control WT plants which eliminates need model identification. This current work proposes a novel methodology in rotor side converter (RSC) part ameliorate low voltage ride through (...

This work presents a nonlinear control approach to maximise the power extraction of wind energy conversion systems (WECSs) operating below their rated speeds. Due nonlinearities associated with dynamics WECSs, stochastic nature wind, and inevitable presence faults in practice, developing reliable fault-tolerant strategies guarantee maximum production WECSs has always been considered important. ...

In this paper, a fault-tolerant control (FTC) is proposed for nonlinear system as Stewart platform (SP). To reject the singularity issue of traditional fast terminal sliding mode (FTSMC) and to have finite-time convergence, nonsingular (NFTSMC) used. addition, an extended state observer (ESO) applied scheme estimate uncertainties, disturbances, faults. increase convergence speed alleviate chatt...

This paper establishes a model-free finite-time tracking control of nonlinear robotic manipulator systems. The proposed controller incorporates both time delay estimation (TDE) and an enhanced terminal sliding mode (TSMC). improved TSMC scheme is devised using fractional-order (FOTSMC) proportional-integral-derivative (PID) to obtain robust high performance. TDE designed estimate the unknown dy...

The aerial manipulator is a novel flying robot consisting of an unmanned vehicle (UAV) and multi-degree-of-freedom (DoF) robotic arm. It can actively interact with the environment to conduct dangerous or inaccessible tasks for humans. In this paper, we propose composite control scheme considering force position operate in steady contact when influenced by external disturbances. First, method wi...