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Suspension is one of the important parts of automobile which has a great influence on the comfort of riding, the stability of handling and the control of vehicle's posture. With the simple two degree of freedom of a quarter of the simplified model of automotive suspension, we use the fixed-gain control and the adaptive control to design the controller. Making use of the MATLAB simulation, the scientific...
In this paper, a practical Identification strategy is applied to the optimal design of fractional-order iterative learning control (FOILC). The initialized fractional-order gray-box system with commensurate order or non-commensurate order is identified by using the fractional-order iterative learning Identification and the least square or instrumental variable method. The optimal Dα-type FOILC is...
In this paper, an improved fractional order proportional integral controller parameter tuning method has been proposed. This method is to map the controller to get a set of vectors in the complex plane. Following the method of vector and geometric in the complex plane, the complicated derivation and calculation can be simplified in the process of the controller design. In addition, the established...
Dynamical systems in the real world are always subject to various disturbances. This paper studies the dynamics of delayed discrete-time linear systems with decaying disturbances. It is first shown that if an unforced linear system is exponentially stable, then the disturbed system has a dynamical property like the exponential stability if the disturbance decays at an exponential rate, and has a dynamical...
This paper deals with the observer design for the Lur'e differential inclusion system with Markovian jump parameters. The information of transition probabilities is partially unknown. The stochastic observer is designed to make the error system exponentially stable in mean square. The condition for the existence of the stochastic observer is given by a set of linear matrix inequalities and linear...
This paper considers the generalized projective synchronization problem for an array of non-identical coupled chaotic systems with ring connections. By using the direct design method, the control laws, which transform the error system into a nonlinear system with special antisymmetric structure, are designed to realize the generalized projective synchronization. Some simple stability criteria are...
In view of the distribution feature of decision-making between owner and contractors, a novel decision-making framework based on negotiation is proposed. The owner and contractors negotiate on completion time in order to obtain the expected completion probability of a project with the constraint of cost. Considering the dynamic property of risks, Markov process is used in each subproject. The evaluation...
On the basis of the interaction law of IT resources and IT application capabilities, using collaborative theory point of view, IT resources and IT application capabilities coupling measure model is established, which involves the active function, coupling degree functions, coupled coordination function and IT resources and IT ability coupling evaluation index system. According to the model, combined...
In this paper, linear quadratic stochastic zero-sum differential games for discrete-time Markov jump systems are discussed. It is shown that the existence condition of finite horizon stochastic zero-sum games is equivalent to the solvability of the associated difference Riccati equations, and that of infinite horizon stochastic zero-sum games is equivalent to the solvability of the associated algebraic...
This paper presents a new workforce allocation optimization model for project scheduling problems with multi-skilled workforce constraints (PSPMSWC), under uncertainty about the projects. The model is a mixed-integer program(MIP) model that aims at maximizing the total profit. As a subproblem, scheduling and staff assignment for projects must also be optimized. In the experiment, projects are selected...
This paper mainly studies one dimensional mean-field backward stochastic differential equations (MFBSDEs) when their coefficient g is uniformly continuous in (y′, y, z), independent of z′ and non-decreasing in y′. The existence of the solution of this kind MFBSDEs has been well studied. The uniqueness of the solution of MFBSDE is proved when g is also independent of y. Moreover, MFBSDE with coefficient...
In this paper, we solve a leader-following problem for second-order integrator systems using only binary relative position and velocity measurements. The leader is allowed to be dynamically evolving with a bounded acceleration which is unknown to any of the followers. By properly choosing the control gains, we prove that despite the fact that only very coarse relative information is available, the...
This paper considers the problem of distributed node-to-node consensus for general linear multi-agent systems with switched pinning links. The control goal in the present work is to make each follower track the corresponding leader asymptotically under the condition that only a small fraction of followers can sense their corresponding leaders through some switched communication channels. By using...
This paper investigates the problem of l1 observer design for positive switched systems with time-varying delays via delta operator approach. The purpose is to design a positive observer such that the estimated error exponentially converges to zero and the l1 -gain from the disturbance input to the estimated error is less than a prescribed level. Based on the average dwell time approach, a sufficient...
This paper presents an improved structure for static synchronous compensator (STATCOM) system based on hybrid multilevel H-bridge converter. In the new structure, the chosen of dc capacitor capacitance is considered for every module, which will reduce the dc capacitor capacitance and reduce the cost of the system. A novel system control and dc capacitor voltage balance control strategy is presented...
Due to nonlinear and strong coupling of coke ovens, a distributed reinforcement learning control algorithm based on a radial basis function (RBF) for gas collector pressure control was proposed, in which the discrete space was dealt with by RBF and the critic-actor method was used to update the parameters of search network and evaluation network of the controller. Moreover, the control strategies...
Non-fragile robust control problem of a fan system is studied. It is pointed out that this problem of the fan system is really a non-fragile robust performance problem, the problem of the fan control system with both non-fragile robust stability and performance requirements(bandwidth and other performances). It is also suggested that the design of the non-fragile robust performance of the fan system...
The paper considers the robust H2 state feedback control design for a class of linear uncertain systems with input quantization. The uncertainties are assumed to be time-varying, unknown, but bounded. The state feedback controller includes two parts. The first part, u1(t), whose gains updating automatically between the lower bounds and upper bounds of uncertain parameters, is obtained according to...
In this article, we provide a numerical method for the mixed H2/H∞ synthesis minimizing the H2 norm of one transfer function while imposing restriction on H∞ norm of the other transfer function. The mixed H2/H∞ robust controller with degree constraint can be designed by solving the nonlinear equations, where a group-preserving scheme is introduced. Three examples are used to investigate the numerical...
In this paper, we are concerned with the quantized H∞ control problem for a class of stochastic systems with random communication delays. The system under consideration involves signals quantization, Itô stochastic disturbance as well as random communication delays. The measured output and the control input quantization are considered simultaneously. We aim at designing an observer-based controller...
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