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In this paper, we propose a perfect model-following (PMF) system using active disturbance rejection control (ADRC). Simulation results show that the plant output follows the desired reference model output. By using the ADRC, we can ignore the parameter errors of the plant. Also the proposed method is designed a model following system, even if the order of the plant is different from that of the model.
There are three different approaches for functional observer design for Linear Time-Invariant (LTI) systems within the literature. One of the most common methods has been proposed by Aldeen [1] and further developed by others. We found several examples in which the necessary and sufficient conditions for the existence of a functional observer are actually not sufficient for this methodology. This...
A design problem of the parametric finite time functional observers in the linear time-invariant systems is investigated. The aim is to design the parametric form of the functional observers which can estimate directly the linear functions of the state for the linear time-invariant systems in a predefined finite time. Based on the parametric solutions for a class of Sylvester matrix equation, this...
Control of time delay system has been researched for a long time. In time delay system, feedback including time delay sometimes makes transient response of a system worse. In the worst case, the system becomes unstable. As time delay compensation method, various methods have been proposed, for example, smith predictor, communication disturbance observer, and so on. In particular, communication disturbance...
According to the time unvarying system with large dead time, an improved controller Gc is designed, the method only needs to be set one parameter to overcome the effect of large dead time and setting the several parameters. At the same time, a compensator is consisted of a state observer and a PID controller is designed to overcome the effects of dead time and time varying parameters, the state observer...
A class of discrete-time nonlinear system and measurement equations involving incrementally conic nonlinearities with finite energy disturbances is considered. A linear matrix inequality based design approach is presented that guarantees the satisfaction of a variety of performance criteria ranging from simple estimation error boundedness to dissipativity. Simple simulation examples are included to...
Slip arises during the acceleration of the automobile. As the result, the travel performance leads to an adverse effect because the grip force of the tyre on the road surface is lost. In this paper, we report the drive control system of an automobile by quadratic stabilization for the system, which considers the friction coefficient between the road surface and the tyre as an uncertainty in the controlled...
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