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IET Control Theory & Applications
Scopus
ISSN 1751-8652 · Wiley · 531 artikel di indeks
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Artikel Jurnal
Output controllability of impulsive Boolean control networks based on hybrid‐index model
Abstract In biological systems, impulses are often used to model mutations in gene expression. In order to describe the instantaneity of the impulse, this paper employs a hybrid‐index model of impulsive Boolean networks with state‐triggered impulses. Based on this model, the time‐domain output…
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Artikel Jurnal
Tracking controller of extended chained nonholonomic systems with matched disturbance and input saturation
Abstract This paper addresses the tracking control for an extended chained nonholonomic system under input saturation and matched disturbances. Specifically, the tracking error dynamic system is split into two subsystems in a cascade form. An integral sliding mode saturated controller is designed…
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Artikel Jurnal
Online estimation of PID controllers and plant dynamics via multi‐recursive least squares estimation from closed‐loop I/O data
Abstract This article proposes an online solution to address the problem of closed‐loop system identification using multiple recursive least squares estimation protocols. Some control systems cannot be analysed in an open‐loop form for stability reasons or the requirement for online control system…
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Artikel Jurnal
Disturbance observer‐based model predictive control of a coaxial octorotor with variable centre of gravity
Abstract This paper presents a model predictive control (MPC) approach based on the extended disturbance observer (EDOB) for trajectory tracking of a coaxial octorotor unmanned aerial vehicle (UAV). First, the system dynamic model is derived using Newton–Euler relations in the presence of…
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A symbolic approach to the verification and enforcement of current‐state opacity using labelled Petri nets
Abstract This work proposes a symbolic method to verify and enforce the current‐state opacity of labelled Petri nets (LPNs). The notion of basis markings of partially observed Petri nets currently dominates the development of opacity verification and enforcement for discrete event systems. However…
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Artikel Jurnal
PDE‐constrained model predictive control of open‐channel systems
Abstract A PDE‐constrained model predictive control (MPC) algorithm for open‐channel systems based on the Saint‐Vevant(S‐V) equations is investigated in this paper. The S‐V equations, which precisely model the dynamics of open‐channel systems, are quasi‐linear hyperbolic partial differential…
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Artikel Jurnal
Robust multi‐objective model predictive control for constrained nonlinear systems with disturbances
Abstract This work develops a new robust multi‐objective model predictive control (MoMPC) strategy for constrained non‐linear systems with bounded disturbances. The multiple objectives are always contradictory, and the presence of disturbances may result in the violation of state constraints and…
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Artikel Jurnal
Robust adaptive event‐triggered ILC scheme design for discrete‐time non‐repetitive nonlinear systems
Abstract In this study, a robust adaptive event‐triggered iterative learning control (ET‐ILC) method is developed for discrete‐time non‐repetitive nonlinear systems with both time‐varying system parameters and time‐iteration‐varying non‐parametric uncertainty. The proposed method utilizes an…
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Artikel Jurnal
Constrained distributed online convex optimization with bandit feedback for unbalanced digraphs
Abstract In this study, a distributed primal‐dual bandit feedback method for online convex optimization with time‐varying coupled inequality constraints on unbalanced directed graphs is proposed. A multiagent network is considered in which agents exchange the estimations of the dual optimizer and…
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Artikel Jurnal
Output feedback stabilization of stochastic high‐order nonlinear time‐delay systems with unknown output function
Abstract This article considers the problem of output feedback stabilization for a class of stochastic high‐order nonlinear time‐delay systems with unknown output function. For stochastic high‐order nonlinear time‐delay systems, based on the Lyapunov stability theorem, by combining the addition of…
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Artikel Jurnal
Enhanced precision in robot arm positioning: A nonlinear damping approach for flexible joint manipulators
Abstract This article introduces an advanced nonlinear controller designed for optimizing the performance of a single‐link robot arm featuring a flexible joint. The proposed nonlinear control strategy incorporates a Proportional‐Integral (PI) controller in conjunction with a nonlinear velocity…
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Artikel Jurnal
Unknown system dynamics estimator based control for sub‐synchronous oscillation of direct‐drive wind farms
Abstract Aiming at the problem of sub‐synchronous oscillations induced by direct‐drive wind farms with series‐compensated lines, this paper proposes an unknown system dynamics estimation‐based PI controller to achieve sub‐synchronous oscillation suppression. According to the mathematical model of…
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Artikel Jurnal
Observer‐based adaptive control of vehicle platoon with uncertainty and input constraints
Abstract This study focuses on the highway platoon driving mode and proposes a distributed adaptive control algorithm based on an observer. Firstly, the adaptive observer is designed to compensate for the effect of unknown driving resistance and thus enhance the adaptation ability of the system to…
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Artikel Jurnal
Receding horizon control for persistent monitoring tasks with monitoring count requirements
Abstract This article presents a reachability‐based receding horizon control (RHC) method for addressing persistent monitoring problems with count requirements. An agent is assigned to monitor multiple targets in a given environment to minimize the average uncertainty metric of all targets, while…
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Artikel Jurnal
Finite‐time consensus for variable‐order fractional non‐linear multi‐agent systems under actuator faults and external disturbances
Abstract The present investigation aims to address the leader‐following consensus issue for variable‐order fractional multi‐agent systems (VOFMASs) under actuator faults and unknown external disturbances. The Caputo definition for the variable‐order fractional (VOF) derivative is used to model the…
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Artikel Jurnal
On the explicit Hermitian solutions of the continuous‐time algebraic Riccati matrix equation for controllable systems
Abstract This paper proposes explicit solutions for the algebraic Riccati matrix equation. For single‐input systems in controllable canonical form, the explicit Hermitian solutions of the non‐homogeneous Riccati equation are obtained using the entries of the system matrix, the closed‐loop system…
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Artikel Jurnal
Reactionless control of free‐floating space manipulators with parameter uncertainty and input disturbance
Abstract This paper studies the control problem of free‐floating space manipulators, and a control scheme is proposed to solve reactionless control of the end‐effector pose tracking with parameter uncertainty and input disturbance. First, based on dual modeling to treat the end‐effector as a…
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Artikel Jurnal
Stability analysis of discrete‐time systems with a time‐varying delay via improved methods
Abstract This paper is concerned with the stability analysis of discrete‐time systems with a time‐varying delay. The conservatism and computation burden are two important factors to evaluate a stability condition. By taking the relationship of two reciprocally convex parts into consideration, a new…
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Artikel Jurnal
Koopman fault‐tolerant model predictive control
Abstract This paper introduces a novel data‐driven approach to develop a fault‐tolerant model predictive controller (MPC) for non‐linear systems. By adopting a Koopman operator‐theoretic perspective, the proposed method leverages historical data from the system to construct a data‐driven model that…
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Artikel Jurnal
Closed‐loop stability analysis of deep reinforcement learning controlled systems with experimental validation
Abstract Trained deep reinforcement learning (DRL) based controllers can effectively control dynamic systems where classical controllers can be ineffective and difficult to tune. However, the lack of closed‐loop stability guarantees of systems controlled by trained DRL agents hinders their adoption…