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In this study, the synchronization of chaotic neural networks with time-varying delay is developed based on parameter identification and sliding model control. Under the framework of master/slave chaotic neural networks, recurrent neural network, is developed to accommodate the on-line synchronization, which the weights of the neural network are iteratively and adaptively updated through the error...
Constant pressure water supply system is a complex time-delay system which makes it difficult to ensure the good control performance and fast response in the working condition for traditional PID control. This paper presents a speed control system of constant pressure pump unit based on fuzzy self-tuning PID control strategy which can realize parameter tuning of PID real-timely. According to a real...
For a class of large- scale systems with time delays in subsystem interconnection, Optimal design of reliable guaranteed cost stabilization with continual gain sensor faults is presented. Based on the analysis of sensor faults of continue gain faults, sufficient conditions for the existence of the decentralized dynamic output feedback of reliable guaranteed cost are given. The design can guarantee...
An improved immune feedback controller based on artificial immune system is designed, with its control object of time delay inertial system, and genetic algorithm is used to optimize the controller parameters. Simulation results based on Matlab verify that the designed immune feedback controller has a good control effect which is better than traditional PID controller.
This paper is concerned with the problems of stability and robust reliable control of linear neutral delay-differential system with actuator failures. In this paper, the memoryless state feedback linear controller is designed so that for all admissible uncertainties as well as actuator failures occurring among a prespecified subset of actuators, the closed-loop system is asymptotically stable. A numerical...
In order to solve the immeasurable problem of the neuron states, and the universal time-delay occurrence in the neural networks systems, this paper studies the state observation problem for time-delay neural networks systems, constructs a new Lapunov-krasovskii functional, designs an efficient delay-dependent observation algorithm to observe the neuron states from the available network outputs. Distinguishing...
In this paper, a neuro-fuzzy control-based approach is used for networked control systems to overcome the negative effects of the network-induced delays. This approach can timely modify the weights of the adaptive controller to improve control performance. Finally, by modeling networked control system with Matlab truetime toolbox, and the simulation results show that networked control systems based...
This paper is concerned with the guaranteed cost fault tolerant control of networked control systems with both time-varying network-induces delay and data dropout. Using LMI approach, new criteria are proposed for the networked guaranteed cost controller design. The new criteria are irrelevant to the bound of the derivative of the delay, no constrain is imposed to the matrix structure. A numerical...
This paper considered the non-fragile guaranteed cost fault tolerant control problem of networked control systems with both fast-varying network-induces delay and data dropout. Using Lyapunov stability theory and the linear matrix inequality (LMI) approach, new criteria are proposed for the non-fragile controller design. A simulation example is given to verify the validity of the proposed method.
This paper is concerned with the state feed-back guaranteed cost fault tolerant control of networked control systems with both network-induces delay and data dropout. Using LMI approach, The sufficient condition for the existence of the networked guaranteed quadratic cost controller is obtained in terms of matrix inequalities, and the controller design method is deduced in terms of linear matrix inequalities...
The problem of designing global sliding mode controllers for a class of linear and uncertain systems with time delays of control was concerned. Firstly, we proposed a new method for integral sliding surface. It can make up for the deficiencies of the traditional sliding surface, eliminating the process of reaching and ensuring the global robustness of the system. Secondly, this paper gave the process...
This paper is concerned with non-fragile H∞ filtering for linear systems in network environments. The filtering error system is modeled as a linear system with an interval time-varying delay. Then a delay-decomposition approach is employed to derive a sufficient condition such that the filtering error system is asymptotically stable with a prescribed H∞ disturbance attenuation level, where the non-fragility...
This paper presents a fractional order control method to achieve synchronization of two networked motion control systems. We propose a new structure to make the two motion control systems synchronized, irrespective of the time delay constant, which may be varying or different in each axis. We use the fractional order controller to improve the synchronization and tracking performance. When the range...
A difference between the human and robots from the viewpoint of motor control is a sampling time in everyday movements. That is, the sampling time for controlling conventional robot systems is required to become approximately 1 ms. On the other hand, the motor control based on human nervous system permits considerably large time-delay due to the transmission latency on afferent/efferent pathways of...
The composite state feedback control designed for singularly perturbed system SPS with small time-delay by using Lambert-W function is proposed in this paper. Based on the delayed slow subsystem (SS) and fast subsystems (FS) decomposition, we design a composite sate-feedback control. So the gain of delayed SS will be designed by using Lambert-W function and the gain of FS will be designed on the basis...
The paper is concerned with the design of networked control systems with random network time delay and data dropout. It presents a new control scheme, which is termed networked predictive control with optimal estimation. This scheme mainly consists of the control prediction generator and the network delay and data dropout compensator. Simulation results are presented to illustrate the effectiveness...
The state feedback robust H-infinity control problem is investigated for discrete-time state delay switched linear descriptor systems with exponential uncertainties in this note. Aiming at the effect of exponential uncertainties, we first treats the uncertain exponential terms as polynomial uncertainty with an additive norm bounded uncertainty based on Taylor series approximation and convex polytope...
To solve time-delay of different-pressure casting's control system, Dalin algorithm and Smith prediction algorithm are separately used to design time-delay compensation controller of different-pressure casting computer control system. And with the two controller MATLAB simulation of different-pressure casting control object is carried on. The simulation results show that Dalin algorithm and Smith...
It was developed a decoupling tuning algorithm and then to be used internal model control(IMC) decoupler. First it was introduced an IMC decoupler design, and then developed a general decoupler tuning algorithm in bad errors model to that IMC decoupler. It just be tuned the proportion, time delay, responsing speed of the decoupled part of the IMC decoupler and the filter proportion. The result of...
This paper deals with the reliable control for uncertain singular systems with time-varying delay. Based on integral inequality, an linear matrix inequality (LMI) approach is developed to design desired state feedback controllers, such that the closed-loop system is regular, impulse free and stable for all admissible actuator failures. All the obtained results are formulated by strict LMI involving...
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