Robust control theory is the study of how to design the controller to ensure the resultantclosed-loop systems with uncertainties stable and satisfying a certain dynamic performance.Robust control problem is the the inevitable trend for development of modern control theoryand the only way leading to practical applications. Due to the feasibility in method andrationality in engineering，it
(Read More…)
Hydraulic servo system of cold strip rolling mill is a complex system which containsnonlinear characteristic, parameter uncertainty and unknown external disturbance, and itmakes the system difficult to control. In order to eliminate the uncertain disturbances anddesign the controller with strong robustness to meet the requirements of cold strip millproduction, robust variable structure control methods are
(Read More…)
Uncertainties inevitably exist in all kinds of physical, industrial and engineering systems because of the simplification of model, change of running environment, aging of electrical elements and so on. Hence, it is difficult for the modern control theory, which is based on the exact mathematical model, to make control systems satisfy the desired performance. Also,
(Read More…)
As an important class of hybrid systems, a switched system is composed of several continuous time subsystems or discrete time subsystems and the switching signal among them. With its own particularity, it is different from the continuous time systems or discrete time systems. Although each subsystem is very simple, the whole system that consists through
(Read More…)
The guaranteed cost control problem was proposed in the early 1970s. The basal idea is to design a state feedback control law such that the closed-loop systems are stable, while the cost index of the closed-loop systems is within a certain bound for all these admissible uncertainties. Also, uncertainty and time delay are commonly encountered
(Read More…)
The guaranteed cost control problem was proposed in the early 1970s. The basal idea is to design a state feedback control law such that the closed-loop systems are stable, while the cost index of the closed-loop systems is within a certain bound for all these admissible uncertainties. Also, uncertainty and time delay are commonly encountered
(Read More…)
It is well know that time-delays as well as uncertainties are frequently the main cause of deterioration of systems performance and instability of systems. Therefore, how to designing controllers which make uncertainty systems with time-delay be stable and guarantee an adequate level of performance, which is a hot research field, has theoretic and practical significance.Based
(Read More…)
It is well know that time-delays as well as uncertainties are frequently the main cause of deterioration of systems performance and instability of systems. Therefore, how to designing controllers which make uncertainty systems with time-delay be stable and guarantee an adequate level of performance, which is a hot research field, has theoretic and practical significance.Based
(Read More…)
It is inadequate that the general system guarantees its stability, so the dynamic response of general system satisfies the demand of some function index. Therefore, the question of guaranteed cost control for systems is put forward. In this paper, by using Lyapunov stability theory and the theory of LMI, we studied the problems of guaranteed
(Read More…)
It is well know that time-delays as well as uncertainties are frequently the main cause of deterioration of systems performance and instability of systems. Therefore, how to designing controllers which make uncertainty systems with time-delay be stable and guarantee an adequate level of performance, which is a hot research field, has theoretic and practical significance.Based
(Read More…)
