NASA Technical Reports Server (Ntrs) 19880017489: Finite-Dimensional Approximation for Optimal Fixed-Order Compensation of distributed parameter systems by NASA Technical Reports Server (Ntrs); published by
NASA Technical Reports Server (Ntrs) 19880017489: Finite-Dimensional Approximation for Optimal Fixed-Order Compensation of distributed parameter systems by NASA Technical Reports Server (Ntrs); published by
NASA Technical Reports Server (Ntrs) 19880014126: an Approximation Theory for the Identification of Nonlinear distributed parameter systems by NASA Technical Reports Server (Ntrs); published by
NASA Technical Reports Server (Ntrs) 19880014126: an Approximation Theory for the Identification of Nonlinear distributed parameter systems by NASA Technical Reports Server (Ntrs); published by
NASA Technical Reports Server (Ntrs) 19880008962: a Unified Framework for Approximation in Inverse Problems for distributed parameter systems by NASA Technical Reports Server (Ntrs); published by
NASA Technical Reports Server (Ntrs) 19880008962: a Unified Framework for Approximation in Inverse Problems for distributed parameter systems by NASA Technical Reports Server (Ntrs); published by
NASA Technical Reports Server (Ntrs) 19900012250: on the Continuous Dependence with Respect to Sampling of the Linear Quadratic Regulator Problem for distributed parameter systems by NASA Technical Reports Server (Ntr...
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NASA Technical Reports Server (Ntrs) 19900012250: on the Continuous Dependence with Respect to Sampling of the Linear Quadratic Regulator Problem for distributed parameter systems by NASA Technical Reports Server (Ntrs); published by
A geometric homogeneity is introduced for evolution equations in a Banach space. Scalability property of solutions of homogeneous evolution equations is proven. Some qualitative characteristics of stability of trivial...
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A geometric homogeneity is introduced for evolution equations in a Banach space. Scalability property of solutions of homogeneous evolution equations is proven. Some qualitative characteristics of stability of trivial solution are also provided. In particular, finite-time stability of homogeneous evolution equations is studied. Theoretical results are illustrated on important classes of partial differential equations.
The present work addresses continuous-time approximation of distributed parameter systems governed by linear one-dimensional partial differential equations. While approximation is usually realized by lumped systems, t...
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The present work addresses continuous-time approximation of distributed parameter systems governed by linear one-dimensional partial differential equations. While approximation is usually realized by lumped systems, that is finite dimensional systems, we propose to approximate the plant by a time-delay system. Within the graph topology, we prove that, if the plant admits a coprime factorization in the algebra of BIBO-stable systems, any linear distributedparameter plant can be approximated by a time-delay system, governed by coupled differential-difference equations. Considerations on stabilization and state space realization are carried out. A numerical method for constructive approximation is also proposed and illustrated. (C) 2016 Elsevier Ltd. All rights reserved.
This paper addresses a new model-based fault detection, estimation, and prediction scheme for linear distributed parameter systems (DPSs) described by a class of partial differential equations (PDEs). An observer is p...
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This paper addresses a new model-based fault detection, estimation, and prediction scheme for linear distributed parameter systems (DPSs) described by a class of partial differential equations (PDEs). An observer is proposed by using the PDE representation and the detection residual is generated by taking the difference between the observer and the physical system outputs. A fault is detected by comparing the residual to a predefined threshold. Subsequently, the fault function is estimated, and its parameters are tuned via a novel update law. Though state measurements are utilized initially in the parameter update law for the fault function estimation, the output and input filters in the modified observer subsequently relax this requirement. The actuator and sensor fault functions are estimated and the time to failure (TTF) is calculated with output measurements alone. Finally, the performance of detection, estimation and a prediction scheme is evaluated on a heat transfer reactor with sensor and actuator faults. (C) 2016 Elsevier Ltd. All rights reserved.
This paper considers the event-driven observer-based control for distributed parameter systems using mobile sensor and actuator. An observer is designed to estimate the states of the distributed parameter systems base...
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This paper considers the event-driven observer-based control for distributed parameter systems using mobile sensor and actuator. An observer is designed to estimate the states of the distributed parameter systems based on the measurement information provided by the mobile sensor. In order to reduce the frequency of the signal transmissions between the observer and the controller, an event-driven scheme is introduced. Once an event is generated, the event detector will send the newest observer state to the controller. Meanwhile, a guidance scheme is provided to drive the actuator to the position where the observer state reaches the maximum value to improve the control performance. For the event-driven control system, the global uniform ultimate boundedness can be guaranteed by the Lyapunov functional approach despite the reduced sampling frequency. A numerical example is finally presented to illustrate the effectiveness and the advantages of the proposed approaches. (C) 2016 Elsevier Ltd. All rights reserved.
This paper deals with obtaining the optimal control configuration for process networks comprising lumped and distributed parameter systems. Equation graphs that capture structural interactions among the input and outp...
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ISBN:
(纸本)9781509045839
This paper deals with obtaining the optimal control configuration for process networks comprising lumped and distributed parameter systems. Equation graphs that capture structural interactions among the input and output variables of first-order hyperbolic PDE systems with different types of actuations are proposed, which are combined with equation graphs of lumped parametersystems. Using these equation graphs, parameters that quantify structural coupling (relative degrees, characteristic indices) are calculated, on the basis of which, the optimal decentralized control configuration is identified. Agglomerative hierarchical clustering is then applied to obtain candidates for block-decentralized control configurations. A modularity maximization algorithm is used to select the optimal block-decentralized control configuration.
This paper proposes an optimal way of allocating collocated input-output pairs for stabilizing distributed parameter systems. We first introduce a finite-dimensional reduced model from sampled initial responses of the...
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