This paper investigates the problem of regulating in real time a linear dynamical system to solution trajectory time-varying constrained convex optimization problem. The proposed feedback controller is based on an adaptation saddle-flow dynamics, modified take into account projections constraint sets and output-feedback from plant. We derive sufficient conditions tunable parameters (inherently ...

This paper presents a new optimization algorithm to design an optimal proportional, integral, derivative (PID) controller in hydro-turbine generator governor for damping output frequency oscillations. In this research, we utilize a stochastic and optimal based PID controller to control frequency-response of the hydro turbine. The proposed algorithm is employed to design an optimal PID controlle...

The energy exchange between series and shunt converters is the basis for powerful functioning of unified distributed power flow controller, which can be realized through 3rd harmonic current. In this paper, based on established equivalent network controller system, influence additional loss caused by current line transmission capacity analysed. mathematical relationship neutral point voltage tr...

This paper focuses on the problem of designing an adaptive fuzzy event-triggered finite-time output feedback control for stochastic nonlinear systems with input and constraints. A observer is designed to estimate unmeasured states. The quartic asymmetric time-varying barrier Lyapunov function established ensure constraint satisfaction. By utilizing theory, command filtered backstepping method m...

The paper investigates the problem of adaptive finite-time robust stabilization for a set high-order uncertain nonlinear systems in presence asymmetric output constraint, dynamic uncertainty and complicated external disturbances. Via effectively integrating artful Barrier Lyapunov Function (BLF) conjunction with continuous control armed serial integral functions consisting embedded sign operati...

in this paper, a new robust controller based on geometric homogeneity and adaptive integral sliding mode is proposed for a class of second order systems. the upper bound of the system disturbances is not required. fully unknown parameters have been considered in the described model and its finite–time convergence to zero equilibrium point is proved. moreover, the controller is developed in the ...

In this paper, a full state-constrained anti-disturbance dynamic surface control method is proposed for six-degree-of-freedom unmanned helicopter systems under state constraints and disturbances. Firstly, due to the underactuated characteristics of systems, an input–output feedback linearization used transform complex nonlinear into facilitated-control ones. Based on transformed disturbance-obs...

A universal single-input-single-output (SISO) controller is proposed which is based on higher-order sliding modes and requires output measurements only. The uncertain SISO dynamic system to be controlled is required to have a permanent knownin-advance relative degree. Its exact mathematical model is not needed. The proposed controller provides for exact finite-time-convergent output tracking wi...

In this paper new necessary and sufficient conditions for static output feedback stabilizability for continuous and discrete time linear time invariant systems have been proposed. These conditions are the basis for the procedure of static output feedback controller design proposed in this paper. The proposed LMI based algorithms are computationally simple and tightly connected with Lyapunov sta...