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Qingling Zhang - IEEE Xplore Author Profile

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The problem of sliding-mode control (SMC) design is investigated for semi-Markovian jump systems (S-MJSs) with uncertain parameters. Compared with previous literature, the effects of signals quantization and asymmetric dead-zone input are considered simultaneously. To ensure stochastic stability of the corresponding system with generally uncertain transition rate (TR), we present sufficient condit...Show More
The problems of impulse controllability and impulse elimination are investigated based on sliding-mode control (SMC) for Takagi–Sugeno (T–S) fuzzy singular systems (FSSs) in this article. Necessary and sufficient conditions for T–S FSSs to be impulse controllable are obtained based on the rank of matrices of system equivalent form. The relationship between impulses and fuzzy membership functions i...Show More
This paper investigates the problem of sliding mode controller design for a class of T-S fuzzy singular systems (TSFSSs) with partly immeasurable premise variables. By analyzing the different cases of immeasurable premise variables, novel state-feedback, and static output-feedback-based sliding mode controllers design methods are first developed. The information of measurable premise variables in ...Show More
This article is concerned with the problem of sliding-mode observer (SMO) design for Takagi-Sugeno (T-S) fuzzy descriptor systems with time-varying delay. First, based on the restricted equivalent transformation, a new restricted equivalent form (REF) of descriptor systems is proposed. Under the new REF, an integral-type sliding surface is constructed for the error system. Then, a sufficient condi...Show More
This article studies the sliding mode control (SMC) of a class of Takagi-Sugeno (T-S) fuzzy singular systems with matched external disturbances. The key advantage of this article is that the input matrices of the considered fuzzy systems could be different, and a novel SMC provided in this article has strong robustness. In this article, systems with delayed state are considered. The time delay is ...Show More
This paper investigates the problem of adaptive H∞ sliding mode control (SMC) for a class of nonlinear systems via Takagi-Sugeno (T-S) fuzzy model approach. The input matrices and output matrices in all local linear systems are different. A novel observer is designed to estimate the unmeasured states. Based on such an observer, the control input is only appeared in the T-S fuzzy singular system an...Show More
This paper designs interval observers for polynomial fuzzy singular systems, in which the external disturbances and unknown parameters are included in the systems. The polynomial fuzzy modelings are proposed, which are more practical than Takagi-Sugeno fuzzy modelings. Then, the interval observers are designed for nonnegative and generic systems. The stability conditions are proposed by sum-of-squ...Show More
This paper investigates the problem of fuzzy-approximation-based adaptive fault-tolerant (FT) tracking control for uncertain nonlinear time-varying delay systems with nonaffine nonlinear faults. Compared with the existing results, the proposed control scheme avoids the use of the Lyapunov-Krasovskii functional, which relaxes the restriction on the derivative of unknown time-varying delay (τ̊(t) <;...Show More
In this paper, we propose a novel sliding-mode control for Takagi-Sugeno (T-S) fuzzy singular system with time-delay and mismatched uncertainties and disturbances. In the majority of T-S fuzzy sliding-mode control ways, a restrictive assumption is required, that is every subsystem's input matrix is identical. In order to eliminate the restrictive assumption, we put forward a dynamic sliding-mode c...Show More
In this paper, we propose a new scheme based on neural networks for predicting the packet disordering and sliding mode control (SMC) to stabilize the nonlinear networked control systems (NCSs). It is assumed that the packet disordering is unknown in the NCSs. The stochastic configuration networks (SCNs), which randomly assign the input weights and biases and analytically evaluate the output weight...Show More
This paper presents a stabilisation problem for singular Markovian jump system with time-varying transition rate based on a reduced-order observer. To design the reduced-order observer, a canonical equivalent form for singular Markovian jump system is given. By the output variables of the equivalent form of singular Markovian jump system and the state of the reduced-order observer, an integral sli...Show More
This paper is concerned with the sliding mode control of nonlinear singular systems in terms of the interval type-2 (IT2) fuzzy model. To better approximate the nonlinear systems, the modeling errors are considered in the IT2 fuzzy model. The uncertainties in membership functions are expressed based on their boundedness. Admissibility conditions are obtained via a linear matrix inequalities approa...Show More
In this paper, the stabilization problems for singular Markovian systems with Brownian motion are studied by use of sliding mode control (SMC) with the jumping transfer matrix known, unknown, or partly unknown. At first, a new stochastic sliding mode surface (SSS) is introduced. The problem of state trajectories moving among several sliding mode surfaces can be settled perfectly. By use of the pro...Show More
This paper investigates the integral sliding mode control problem of T-S fuzzy interconnected descriptor system based on a reduced-order compensator. A canonical equivalent form for T-S fuzzy interconnected descriptor system is first introduced to facilitate the reduced-order compensator design. In terms of the measurable output variables of the T-S fuzzy interconnected descriptor system and the s...Show More
Firstly, according to the “prey-predator-top predator” behavior phenomenon, a singular bio-economic model is built and the necessary and sufficient conditions for the stability of the equilibrium point of singular bio-economic model are given. Secondly, by applying the singular systems theory and bifurcation theory, it is shown that the sufficient conditions of the singularity induced bifurcation ...Show More
In this paper, the problem of variable structure control for singular biological economic model with stage structure and uncertain parameters is studied. Firstly, according to the T-S fuzzy theory, the uncertain T-S fuzzy singular model is established and the stability of the model at the positive equilibria is discussed. Then, the fuzzy integral sliding surface and controller for the T-S fuzzy si...Show More
T0588. A new integral-type switching function, which involves the inherent characteristics of the polynomial fuzzy descriptor systems, is first constructed. Then a sum of square-based approach is proposed to determine the designing matrices in the proposed integral-type switching function and a twisting algorithm-based sliding mode controller is also designed to guarantee the continuity of the sta...Show More
This paper focuses on observer and observer-based robust $H$ ∞ feedback controller design for positive delta operator systems with time-delays. First of all, a positive observer is designed to estimate the states of the proposed positive system, which is a Luenberguer-type and ensures the estimation to be nonnegative at any time. Moreover, an observer-based robust $H$ ∞ feedback control problem is...Show More
This paper addresses the problems of robust adaptive sliding mode observer (SMO) design and SMO-based sliding mode control (SMC) for T-S fuzzy descriptor systems with time-varying delay. Until now, there are a few results about the adaptive SMO design problem and adaptive SMO-based SMC for T-S fuzzy descriptor systems with time-varying delay. Therefore, we are motivated to study this issue. First,...Show More
This paper considers a decentralised sliding mode load frequency control (LFC) for multi-area power system with uncertain time-varying parameters and delay. Since delays can exert a destabilizing effect on the overall system, it is necessary to maximize the delay bound in order to regularize the deviation in frequency and tie-line power. Robustness is improved by taking advantage of the system str...Show More
This paper investigates the sliding mode control for discrete time system. Novel nonlinear switching structure sliding manifold is proposed to improve the system response performance. The sliding mode control input is derived based on the proposed hyperbolic reaching law. Hyperbolic secant function is introduced into the proposed reaching law with adjustable parameters. The property of the propose...Show More
This paper investigated the adaptive sliding mode control problem for T-S fuzzy descriptor systems with different input matrices. The specific information of the bound of nonlinear term is unknown in the controller design process. Our attention is mainly focused on designing the adaptive sliding mode controller for such a T-S fuzzy descriptor. Firstly, a model-based fuzzy sliding surface is constr...Show More
In this paper, the stabilization is investigated about fuzzy stochastic singular systems by the use of sliding-mode control (SMC). The advantage of this paper is that local input matrices of fuzzy systems could be different, and the SMC law provided in this paper still has strong robustness to resist external disturbance. In order to deal with the problem of different input matrices, a novel slidi...Show More
This paper investigates observer-based stabilization for nonlinear descriptor systems using a fuzzy integral sliding mode control approach. Observer-based integral sliding mode control strategies for the Takagi-Sugeno (T-S) fuzzy descriptor systems are developed. A two-step design approach is first developed to obtain the observer gains and coefficients in the switching function using linear matri...Show More
In this paper, the lag exponential synchronization for a class of neural networks with distributed delays and discrete delays (mixed delays) is studied via adaptive semiperiodically intermittent control. Using the adaptive control theory, the Lyapunov stability theory combined with the method of intermittent control, the simple but robust adaptive semiperiodically intermittent controller and impul...Show More