Abstract This article solves the problem of regulating rotor speed tracking error for wind turbines in full-load region by an effective robust adaptive control strategy. The developed controller compensates uncertainty input effectiveness caused a pitch actuator fault, unmeasurable disturbance, and nonlinearity model. Wind have multilayer structures such that high-level structure is nonlinearly...

In this paper, a novel robust adaptive sliding-mode control scheme is presented high precision position control for a permanent magnet synchronous linear motor (PMSLM) servo system under the influence of unknown parameters, nonlinear friction, cogging forces, and external distance. The proposed strategy effectively combines the design techniques of adaptive control and sliding-mode control. In ...

This paper focuses on the high performance pointing control of tank servo systems with parametric uncertainties and uncertain nonlinearities including nonlinear friction, backlash structural flexibility. A comprehensive dynamic mathematical model two-DOF system is established. Specifically, to accurately describe friction characteristics in actual systems, a continuous employed. Moreover, hybri...

This paper employs nonlinear disturbance observer (NDO) for robust trajectory-free Nonlinear Model Predictive Control (NMPC) of biped robots. The NDO is used to reject the additive disturbances caused by parameter uncertainties, unmodeled dynamics, joints friction, and external slow-varying forces acting on the biped robots. In contrary to the slow-varying disturbances, handling sudden pushing ...

Background and Objectives: Virtual inertia control, as a component of a virtual synchronous generator, is used for the implementation of synchronous generator behaviour in microgrids. In microgrids that include high-capacity distributed generation resources, in addition to virtual inertia, virtual damping can also lead to improvement of frequency stability of the microgrid. The purpose of the c...