The suspension air-gap of Maglev train needs controller for it is inherently unstable and highly nonlinear. To maintain a high quality ride, comfort safety the passengers must air-gap. During operation only in millimeters. This easily causes instability under excitation nonlinear load track tiny deformation. Additionally, with low stiffness will experience larger bending displacement result vib...

A novel adaptive-gain twisting controller that is robust to the bounded disturbances with the unknown boundaries is proposed. The control algorithm is derived using the Lyapunov function technique. It is shown that an ideal or real second order sliding mode is established, and the adaptation algorithm does not overestimate the control gain. The efficacy of the proposed adaptive twisting control...

In this paper an Adaptive Continuous Twisting Algorithm (ACTA) is presented. For double integrator, ACTA produces a continuous control signal ensuring finite time convergence of the states to zero. Moreover, the control signal generated by ACTA, compensates the Lipschitz perturbation in finite time, i.e. its value converges to the opposite value of the perturbation. ACTA also keeps its converge...

Nowadays, research on electric drive control has become popular because hybrid methods to collect the advantages of individual controllers. Moreover, these aim reach better performance and robust even in presence uncertainties disturbances which are typically evident high-speed dynamics where influence external modeling errors more evident. Therefore, this paper, a novel controller is proposed ...

This paper proposes an adaptive continuous higher order sliding mode control scheme. The control law comprises a structure which provides smooth finite time stabilization of the origin for a nominal disturbance-free system formed from a chain of integrators, together with a super-twisting term to guarantee robustness to a class of twice differentiable uncertainty. The super-twisting scheme is a...

The main objective of this manuscript is to design a high-order sliding-mode observer to provide finite time estimation of unmeasurable states (x4 : oxygen mass, x5 : nitrogen mass) together with the oxygen excess ratio (ratio of the input oxygen flow to the reacted oxygen flow in the cathode). This is done by applying second-order sliding modes through either super twisting or suboptimal contr...