Power systems are usually large non-linear systems, which are often subjected to low frequency electromechanical oscillations. Power System Stabilizers (PSSs) are often used as effective and economic means for damping the generators’ electromechanical oscillations and enhance the overall stability of power systems. Power system stabilizers have been applied for several decades in utilities and ...

This paper addresses a robust synchronization of fractional order unified systems whilst some parameters need to be identified. Based on the Sliding mode theory, a control law is proposed to realize a robust synchronization and parameter identification of two fractional order unified systems especially in presence of discrepancy in the initial conditions. This is also done when the slave system...

The regulation by sliding mode control (SMC) is recognized for its qualities of robustness and dynamic response. This article will briefly talk about the regulation principles by sliding mode as well as the application of this approach to the adjustment of a speed control DC motor bench using the TY36A/EV unit. This unit, from Electronica Veneta products, uses a PID controller to control the sp...

In this paper, the authors propose a novel dynamic integral sliding mode controller for state dependent matched and unmatched uncertainties. An output feedback methodology based designed dynamic controller attenuate the effects of the both matched and unmatched uncertainties along with considerable reduction in chattering phenomena. An integral manifold is used which provides sliding mode witho...

In this study, nonlinear second order systems with unmeasured system states and bounded external disturbances are considered. The observer gain of the sliding mode observer is adjusted by using a support vector machine based plant model. Computer simulations are presented to show the effect of the proposed adjustment mechanism on the performance of the output feedback sliding mode controller. I...

In this paper, a chattering-free sliding-mode control is mainly proposed in a second-order discrete-time system. For achieving this purpose, firstly, a suitable control law would be derived by using the discrete-time Lyapunov stability theory and the sliding-mode concept. Then the input constraint is taken into account as a saturation function in the proposed control law. In order to guarantee ...

Proton exchange membrane fuel cells (PEMFCs) are promising clear and efficient new energy sources. An excellent control system is a normal working prerequisite for maintaining a fuel cell system in correct operating conditions. Conventional controllers could not satisfy the high performance to obtain the acceptable responses because of uncertainty, time-change, nonlinear, long-hysteresis and st...

Abstract. There is presented a comparison of sliding mode control and decoupled sliding mode control algorithms for the PUMA 560 robot position control. The Lagrange-Euler mathematical model of the robot is used for calculation the control laws. The algorithms show good robustness to model inaccuracies. The decoupled sliding mode control shows better performance in positioning than the standard...

This paper presents parameter identification and discrete-time adaptive slidingmode controller applied to control the mobile platform Pioneer 3-DX wheeled mobile robot (WMR) with 5-DOF manipulator. The dynamic model for mobile robot with two driving wheels, time–varying mass and moment of inertia have been used in sliding-mode control. Two closed-loop, on-line parameter estimators have been use...

An adaptive sliding-mode control system, which is insensitive to uncertainties, is proposed to control the position of an induction motor drive. The designed sliding mode control presents an adaptive switching gain to relax the requirement for the bound of uncertainties. The switching gain is adapted using a simple algorithm which do not implies a high computational load. Stability analysis bas...