the problem of relative motion control for spacecraft formation flying in eccentric orbits is considered in this paper. due to the presence of nonlinear dynamics and external disturbances, a robust fuzzy sliding mode controller is developed. the slopes of sliding surfaces of the conventional sliding mode controller are tuned according to error states using a fuzzy logic and reach the pre-define...

Abstract: This paper presents a robust non-linear hybrid controller based on Type-2 fuzzy and sliding mode control strategy for VSC-HVDC transmission link, which inherits the benefits of these two methods. The interval Type-2 fuzzy (IT2FSMC) is used to handle the uncertainties to enhance the real time performance. The sliding mode control combines with the fuzzy system to compensate the influen...

This paper presents a second order sliding mode control (SOSMC) for a single link flexible manipulator, which represents a class of under actuated systems. A second order super twisting algorithm (STA) is used to provide better positional accuracy and robustness against parametric variation and external disturbances with alleviation in chattering. A smooth control is synthesized using STA to ex...

Sliding mode control (SMC) becomes a common tool in designing robust nonlinear systems, due to its inherent characteristics such as insensitivity system uncertainties and fast dynamic response. Two modes are involved the SMC operation, namely reaching sliding mode. In mode, state is forced reach surface finite time. The major drawback of approach occurrence chattering which undesirable most app...

in this article, the sliding mode control of frequency load control of power systems is studied. the study areaconsists of a system of water and heat. first, a mathematical model of the proposed system disturbances ismade and then sliding control mode for frequency load control is provided. by the system simulation andsliding mode control, it can be shown that the damping of oscillations is wel...

Several methods of chattering reduction have been reported. One approach [5] places a boundary layer around the switching surface such that the relay control is replaced by a saturation function. Another method [6] replaces a max-min-type control by a unit vector function. These approaches involve a trade-off between chattering and robustness. The aim of this paper is to develop a Fuzzy sliding...

The current paper presents a Sliding Mode Controller (SMC) for indirect field-oriented Cascaded Doubly Fed Induction Generator (CDFIG) powered through Matrix Converter (MC). proposed SMC employs continuous control strategy to accomplish free chattering fractional-order sliding-mode and ensure that the of first DFIG stator's reactive active power is separated. An MC used provided second stator C...

in this paper, a new smooth second order sliding mode control is proposed. this algorithm is a modified form of super twisting algorithm. the super twisting guarantees the asymptotic stability, but the finite time stability of proposed method is proved with introducing a new particular lyapunov function. the proposed algorithm which is able to control nonlinear systems with matched structured u...

This paper describes a procedure for adaptive output feedback sliding mode control(SMC) based on Almost Strictly Positive Real(ASPR)-ness for a class of multi-input/multi-output linear time invariant systems. Stability of the control system is achieved by using the parallel feedforward compensator(PFC), which guarantees ASPR-ness of the plant. Effectiveness of the proposed method is confirmed t...