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This paper studies the fault tolerant safe control of nonlinear systems. The proposed theory ensures that the state of the system is away from the unsafe set, and asymptotically stable as well in the presence of faults. The theoretical results are applied to an attitude dynamics of a hypersonic vehicle with actuator faults.
This paper presents an overview of singular perturbations and time scales (SPaTS) in control theory and application, which covers stability, stabilization, fault diagnosis and fault tolerant control of several common classes of singularly perturbed systems, and applications of SPaTS to aerospace systems.
In this paper, a novel decentralized fault diagnosis and fault tolerant control scheme is proposed for a class of interconnected nonlinear systems where each mode does not need to exchange information with other ones. The couplings' effect among subsystems is analyzed from the global system point of view and is eliminated by using the cyclic small-gain technique. A simulation example of three inverted...
The recoverability reflects the capability of the system to tolerate the worst faults over a prescribed set under admissible energy constrains. In this paper, a piecewise affine (PWA) controller is designed for a piecewise affine approximation of the nonlinear dynamics, which can stabilize the original nonlinear system under some conditions. By analyzing the upper bound of the piecewise linear quadratic...
This paper proposes a topology of Intelligent Universal Transformer (IUT) with the ideas of three stages and modules series and parallel. Main parameters of IUT are also designed according to the need of smart distribution grid and industrial requirements and a prototype has been carried out. An experiment in dynamic simulation lab in department of electric engineering, Tsinghua University is used...
Web-based collaborative e-commerce pushed liquor business to achieve global interaction and collaboration. Network-based information technology made it possible to achieve enterprise internal and external resource optimization, integration and configuration, information sharing, costs reduce and profit improvement. The overall management of liquor business would be improved.
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