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This paper presents the cascaded PI-continuous second order sliding mode control for induction motor in the presence of operational constraints. The inner-loop Sliding Mode Control (SMC) is designed to control the current dynamics of the motor while the outer-loop control is the PI control of speed. The main advantages of the proposed method are that the PI control provides reference to inner-loop...
This paper describes the practical implementation of two well known robust control strategies over a non-linear magnetic levitation system for controlling the coil current so as to achieve the desired position. In order to make the controller robust and practically implementable, higher order sliding modes (HOSM) technique is used. Two second order sliding modes (SOSM) schemes are applied on the actual...
This paper presents the control of unmatched uncertain systems by sliding mode controller. The sliding surface is designed by using the proportional-integral-derivative (PID) gain parameters called robust PID. The control is derived from second-order sliding modes. Comparison of PID and robust PID control in presence of disturbances has been made. A numerical example is taken to illustrate this scheme...
This paper presents presents finite control of unmatched uncertain systems. A typical second order system is considered for illustration. A finite-time converging surface is used o ensure he convergence of the sates, even in he presence of unmatched uncertainty. Second-order sliding mode control is used device smooth control. The performance of the proposed control is validated through simulation.
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