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This paper investigates how to use robust model prediction control in air-conditioning systems. Air-conditioning processes are described using a first-order plus time-delay model associated with uncertainties in process gain, time constant and time-delay. An uncertainty polytope is developed to describe the corresponding uncertainties when the continuous model is sampled into a discrete one and further...
This paper presents an application of the continuous-time deadbeat control, which is proposed recently based on the finite pole assignment for linear systems with time delay. The control object used here is a carriage, which is build with LEGO MINDSTORMS NXT as a model of crane for LCD manufacturing line. The implementation includes modeling, design, and implementation for a cheap microprocessor for...
This paper studies the event design in event-triggered feedback systems with asymptotic stability. A new event-triggering scheme is presented that may postpone the occurrence of events over previously proposed methods. Our approach pertains to nonlinear state-feedback systems. The resulting event-triggered feedback systems are guaranteed to be asymptotically stable, provided that the continuous systems...
A new discrete reaching law which is true of the ldquosix charactersrdquo given by Gao Wei-Bing is introduced in this paper. Then the control law is designed by using the discrete reaching law, and the method how to design a variable structure control of discrete system with time-delay is also introduced; It is manifested that the discrete control system with time-delay which is designed by the proposed...
In this paper a novel approach is proposed to solve a decentralized control problem to stabilize a multivariable system and attenuate the interconnections between its subsystems. To satisfy these conditions, an ut feedback controller is designed by solving an Hinfin control problem. The designed controller is applied to a practical multivariable flow-level plant to show the effectiveness of the proposed...
This paper proposes a novel algorithm to detect information of time delay and inertia errors of the nominal model in the disturbance observer. The proposed method adopts the hidden Markov model to relate the states causing disturbances with the observed disturbances. Output distribution of the hidden disturbance state can be defined based on the relationship between the observed disturbance and time...
The problem of optimal vibration for time-delay systems is considered. The delayed system is transformed into a non delayed one by using functional transformations. The optimal control law consisting of state feedback and feedforward compensator is derived from a Riccati equation and a Sylvester equation. The feedforward control compensates for the effect of road vibration. A control memory term is...
This paper develops an optimal robust control algorithm for finding digital computer control of decentralized stochastic singularly-perturbed large-scale actuator type systems with multiple time varying delays. Due to the derived algorithm concerns at each moment, the found controller is also suitable in the time varying condition. Moreover, this system possesses the fast response characteristics...
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