In this paper, a prey-predator system that called human immunodeficiency virus (HIV) models is considered, and sliding mode control (SMC) is used to stabilize this system. The basic model is a 3-dimensional nonlinear ODEs that describes the interaction of the HIV with target cell, cell and macrophage. Lyapunove function is constructed to establish the global asymptotic stability of the uninfect...

Abstract Sliding Mode Control (SMC) is a powerful methodology in the field of nonlinear feedback control with feature of proven robustness, performance and stability in the face of system nonlinearity and modeling uncertainties. Unfortunately, pure SMC controller suffers from two important problems; chattering phenomenon and formulation of equivalent dynamics. The aim of this paper is to design...

Due to simplicity and robustness, classical PID and SMC have been still widely used in practical applications. Performance of these controllers (PID and SMC) depends upon the value of some of the constant controller parameters. To avoid the most commonly used tedious trial and error method, this paper proposes an improved PSO based method for getting the optimized value of these parameters. For...

This paper presents a continuous time sliding mode controller (SMC) design to deal with the problem of motion synchronization in dual spindle servo systems. Synchronization error is defined as the differential position error between the two servo drives that follow identical reference motion trajectory. Proposed SMC controller penalizes three error states; namely individual axis tracking errors...

The research proposed an alternative controller to control the Direct Current (DC) Motor using a sliding mode (SMC) in Matlab Simulink simulation and Arduino hardware implementation. controller, SMC, was designed system model (equivalent control) Lyapunov design (also prove stability). had better response than PID Controller, with no overshoot result. In implementation result, augmented could r...

This paper proposes the new cascaded series parallel design for improved dynamic performance of DC-DC buck boost converters by a new Sliding Mode Control (SMC) method. The converter is controlled using Sliding Mode Control method that utilizes the converter’s duty ratio to determine the skidding surface. System modeling and simulation results are presented. The results also showed an improved o...

This paper proposes an automatic tuning algorithm for a sliding mode controller (SMC) based on the Ackermann's formula, that attenuates structural vibrations of seismically excited building equipped with Active Tuned Mass Damper (ATMD) mounted its top floor. The switching gain and surface SMC are designed through proposed to suppress by minimizing either floor displacement or control force appl...

This paper deals with certain aspects of operation of a third order Variable Structure System using Sliding Mode Control (SMC). SMC is applied to the process plant using LabVIEW (Laboratory Virtual Instrumentation Engineering Workbench). The process plant and its control are simulated using LabVIEW 2011 and the results are compared with conventional PID controller. It is found that the settling...

This paper presents the design of an optimal nonlinear controller for trajectory tracking of a quadrotor helicopter based on the well-known sliding mode control method (SMC). To this end, the Lyapunov law analysis has been used regarding nonlinear equations of the quadrotor. The proposed control method is characterized by its robustness against disturbances and aerodynamic effects. One of the m...

This paper deals with the control of the fractional-order nonlinear systems. A list of the control strategies as well as synchronization of the chaotic systems is presented. An illustrative example of sliding mode control (SMC) of the fractional-order (commensurate and incommensurate) financial system is described and commented together with the simulation results.