Article
Automation & Control Systems
En Lu, Wei Li, Shibo Wang, Wuguo Zhang, Chengming Luo
Summary: The paper proposes a disturbance rejection control method for low-speed high-torque PMSM, which combines a robust speed controller and a load observer to address uncertainties and unknown external interferences in the system.
Article
Computer Science, Hardware & Architecture
Guowei Xu, Shaoda Zhao, Yi Cheng
Summary: In this study, a new integral function and attenuation function are proposed for the global nonlinear integral sliding mode surface, which is applied to the synchronization control of chaotic systems. The results show good control performance of the proposed sliding mode control method.
COMPUTERS & ELECTRICAL ENGINEERING
(2021)
Article
Acoustics
Jiyuan Hu, Valiollah Ghaffari, Saleh Mobayen, Jihad H. Asad, Mai The Vu
Summary: A robust composite nonlinear feedback control method is proposed for time-delayed uncertain systems, solving the tracking problem by considering system limitations. Controller parameters are determined through a solution for linear matrix inequality, and numerical simulation demonstrates the efficiency of the method.
JOURNAL OF VIBRATION AND CONTROL
(2022)
Article
Automation & Control Systems
Ke Shao
Summary: This paper introduces a nested adaptive integral terminal sliding mode control scheme for high-order uncertain nonlinear systems, which eliminates the reaching phase and stabilizes the system in finite time. The proposed method achieves finite-time origin convergence without reaching phase, nonoverestimation, nonsingular and chattering-free control signal, providing advantages over conventional methods.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2021)
Article
Computer Science, Information Systems
Shuiping Xiong, Xiaoyu Zhang, Yining Li
Summary: In this paper, an output feedback sliding mode control based on a robust integral sliding mode is proposed for switched systems with unmatched uncertainties. The method can reject the unmatched uncertainty and suppress the unmatched disturbance in both designed control switching rule and arbitrary switching rule.
Article
Engineering, Mechanical
Saleh Mobayen, Alessandro N. Vargas, Leonardo Acho, Gisela Pujol-Vazquez, Constantin F. Caruntu
Summary: The main contribution of this paper is to combine the integral term and barrier function with sliding-mode control (SMC), which can track any given trajectory while ensuring stability and chattering-free performance. The potential of this novel control is illustrated through real-time experiments on a magnetic levitation system.
NONLINEAR DYNAMICS
(2023)
Article
Automation & Control Systems
Baopeng Zhu, Yuhan Xu, Yukai Zhu
Summary: This paper investigates the problem of multiple disturbances under multi channels in Markov jump systems (MJSs), and proposes a functional observer-based asynchronous composite anti-disturbance control method to reject the matched disturbance and attenuate the norm-bounded mismatched disturbance. Sufficient conditions are proposed to achieve the stochastic stability and satisfy Hoo performance of closed-loop MJSs. A numerical example is given to illustrate the effectiveness of the proposed method.
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
(2023)
Article
Automation & Control Systems
Hui Chen, Min Xiang, Bingjie Guan, Weijie Sun
Summary: This paper proposes a composite nonlinear feedback-based adaptive integral sliding mode controller to improve the transient performance and robustness of the system by eliminating the effect of disturbances. The proposed control scheme demonstrates superior performance in the presence of time-varying disturbances without the knowledge of system disturbance bounds.
TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL
(2022)
Article
Energy & Fuels
Ijaz Ahmed, Iftikhar Ahmad, Shahzad Ahmed, Hafiz Mian Muhammad Adil
Summary: Three sliding mode controllers for battery electric vehicle charging units were designed, with the supertwisting sliding mode controller effectively reducing chattering and exhibiting better dynamic performance in G2V mode. Through simulation and hardware in the loop experiments, the robustness and effectiveness of the proposed controller were verified.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Automation & Control Systems
Dong Qu, Wen-Bo Xie, Guan-Qun Chen, Bing Yang, Yan Peng
Summary: This article introduces an observer-controller structure for nonlinear systems with external disturbances, uncertainties, and performance constraints. By utilizing a sliding mode observer, an integral barrier Lyapunov function, an equivalent output injection technique, and backstepping technique, the proposed approach is able to limit the signals and tracking error in the closed-loop system, ensuring stability and performance.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2023)
Article
Acoustics
Quanmin Zhu, Saleh Mobayen, Hamidreza Nemati, Jianhua Zhang, Wei Wei
Summary: This study proposes a U-control-based Composite Nonlinear Feedback (U-CNF) design procedure that establishes a double feedback loop framework for generalisation and simplification in designing CNF control systems. The U-CNF control is applicable to nonaffine nonlinear dynamic systems, model-free, and robust against model uncertainty and external disturbance.
JOURNAL OF VIBRATION AND CONTROL
(2023)
Article
Automation & Control Systems
Moussa Labbadi, Michael Defoort, Gian Paolo Incremona, Mohamed Djemai
Summary: In this article, a novel fractional-order recursive integral terminal sliding mode (FORITSM) control is proposed for nonlinear systems with unknown bounds of external disturbances. The proposed control approach achieves finite-time (FnT) zeroing of the sliding variable by adding a fractional-order command filter, and eliminates the reaching phase while proving the FnT convergence of the system states. The technique also has a chattering alleviation property, which is beneficial for practical applications such as the control of quadrotor UAVs. A simulation case study on a quadrotor system is presented to demonstrate the effectiveness of the proposed FORITSM control, compared to classical methods.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2023)
Article
Engineering, Marine
Mingyu Fu, Guorong Zhang, Yujie Xu
Summary: This paper investigates the discrete-time sliding mode (DSM) path following control problem for dynamic positioning ship (DPS) with time-varying disturbances and sideslip based on non-switching reference trajectory and discrete-time disturbance observer (DDO). A control scheme is proposed that includes the design of a high-order DDO and a finite-time sideslip angle observer to compensate for the effects of time-varying disturbance and sideslip angle. The scheme also incorporates a discrete-time integral sliding mode surface to address system instability and a new DSM path following controller based on a non-switching reference trajectory. Comparative simulation results demonstrate the effectiveness and superiority of the proposed control scheme.
Article
Automation & Control Systems
Mohsen Farbood, Zeinab Echreshavi, Mokhtar Shasadeghi, Saleh Mobayen
Summary: This paper proposes an event-triggered integral sliding mode control (ISMC) for perturbed nonlinear Takagi-Sugeno (TS) fuzzy systems. A disturbance observer is designed to estimate and reduce the unmatched disturbances. Two types of sliding surfaces are established to reduce computational burden and communication resources. The proposed control scheme ensures system performance enhancement and Zeno-free behavior.
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
(2023)
Article
Mathematics, Applied
Li-Ying Hao, Yu-Qing Zhang, Hui Li
Summary: This article investigates fault-tolerant control against thruster faults for unmanned marine vehicles using integral sliding mode control technique. By constructing an output integral sliding surface and designing an integral sliding mode controller with a full-order compensator, oscillation amplitudes of yaw angle and yaw velocity error can be attenuated. The effectiveness of this method is verified through a simulation example with a typical floating production ship.
APPLIED MATHEMATICS AND COMPUTATION
(2021)
Article
Automation & Control Systems
Sanjoy Mondal, Rong Su, Lihua Xie
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2017)
Article
Mathematics, Applied
Sanjoy Mondal, Chitralekha Mahanta
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2011)
Article
Automation & Control Systems
S. Mondal, C. Mahanta
IET CONTROL THEORY AND APPLICATIONS
(2012)
Article
Automation & Control Systems
Sanjoy Mondal, Chitralekha Mahanta
Article
Automation & Control Systems
Sanjoy Mondal, Chitralekha Mahanta
Article
Automation & Control Systems
Sanjoy Mondal, Chitralekha Mahanta
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
(2014)
Proceedings Paper
Automation & Control Systems
Sanjoy Mondal, Rong Su
2018 IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
(2018)
Article
Automation & Control Systems
Sanjoy Mondal, Jawhar Ghommam, Maarouf Saad
INTERNATIONAL JOURNAL OF AUTOMATION AND COMPUTING
(2017)
Proceedings Paper
Automation & Control Systems
Sanjoy Mondal, Rong Su
2016 AMERICAN CONTROL CONFERENCE (ACC)
(2016)
Proceedings Paper
Automation & Control Systems
Sanjoy Mondal, Rong Su
Proceedings Paper
Engineering, Electrical & Electronic
Sanjoy Mondal, Chitralekha Mahanta
PROCEEDINGS OF THE 2013 IEEE 8TH CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA)
(2013)
Article
Mathematics, Applied
Hao Liu, Yuzhe Li
Summary: This paper investigates the finite-time stealthy covert attack on reference tracking systems with unknown-but-bounded noises. It proposes a novel finite-time covert attack method that can steer the system state into a target set within a finite time interval while being undetectable.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Nikolay A. Kudryashov, Aleksandr A. Kutukov, Sofia F. Lavrova
Summary: The Chavy-Waddy-Kolokolnikov model with dispersion is analyzed, and new properties of the model are studied. It is shown that dispersion can be used as a control mechanism for bacterial colonies.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Qiang Ma, Jianxin Lv, Lin Bi
Summary: This paper introduces a linear stability equation based on the Boltzmann equation and establishes the relationship between small perturbations and macroscopic variables. The numerical solutions of the linear stability equations based on the Boltzmann equation and the Navier-Stokes equations are the same under the continuum assumption, providing a theoretical foundation for stability research.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Samuel W. Akingbade, Marian Gidea, Matteo Manzi, Vahid Nateghi
Summary: This paper presents a heuristic argument for the capacity of Topological Data Analysis (TDA) to detect critical transitions in financial time series. The argument is based on the Log-Periodic Power Law Singularity (LPPLS) model, which characterizes financial bubbles as super-exponential growth (or decay) with increasing oscillations approaching a tipping point. The study shows that whenever the LPPLS model fits the data, TDA generates early warning signals. As an application, the approach is illustrated using positive and negative bubbles in the Bitcoin historical price.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Xavier Antoine, Jeremie Gaidamour, Emmanuel Lorin
Summary: This paper is interested in computing the ground state of nonlinear Schrodinger/Gross-Pitaevskii equations using gradient flow type methods. The authors derived and analyzed Fractional Normalized Gradient Flow methods, which involve fractional derivatives and generalize the well-known Normalized Gradient Flow method proposed by Bao and Du in 2004. Several experiments are proposed to illustrate the convergence properties of the developed algorithms.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Lianwen Wang, Xingyu Wang, Zhijun Liu, Yating Wang
Summary: This contribution presents a delayed diffusive SEIVS epidemic model that can predict and quantify the transmission dynamics of slowly progressive diseases. The model is applied to fit pulmonary tuberculosis case data in China and provides predictions of its spread trend and effectiveness of interventions.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Shuangxi Huang, Feng-Fei Jin
Summary: This paper investigates the error feedback regulator problem for a 1-D wave equation with velocity recirculation. By introducing an invertible transformation and an adaptive error-based observer, an observer-based error feedback controller is constructed to regulate the tracking error to zero asymptotically and ensure bounded internal signals.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Weimin Liu, Shiqi Gao, Feng Xu, Yandong Zhao, Yuanqing Xia, Jinkun Liu
Summary: This paper studies the modeling and consensus control of flexible wings with bending and torsion deformation, considering the vibration suppression as well. Unlike most existing multi-agent control theories, the agent system in this study is a distributed parameter system. By considering the mutual coupling between the wing's deformation and rotation angle, the dynamics model of each agent is expressed using sets of partial differential equations (PDEs) and ordinary differential equations (ODEs). Boundary control algorithms are designed to achieve control objectives, and it is proven that the closed-loop system is asymptotically stable. Numerical simulation is conducted to demonstrate the effectiveness of the proposed control scheme.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Gourav Mandal, Lakshmi Narayan Guin, Santabrata Chakravarty
Summary: The ecological framework investigates the dynamical complexity of a system influenced by prey refuge and alternative food sources for predators. This study provides a thorough investigation of the stability-instability phenomena, system parameters sensitivity, and the occurrence of bifurcations. The bubbling phenomenon, which indicates a change in the amplitudes of successive cycles, is observed in the current two-dimensional continuous system. The controlling system parameter for the bubbling phenomena is found to be the most sensitive. The prediction and identification of bifurcations in the dynamical system are crucial for theoretical and field researchers.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Damian Trofimowicz, Tomasz P. Stefanski, Jacek Gulgowski, Tomasz Talaska
Summary: This paper presents the application of control engineering methods in modeling and simulating signal propagation in time-fractional electrodynamics. By simulating signal propagation in electromagnetic media using Maxwell's equations with fractional-order constitutive relations in the time domain, the equations in time-fractional electrodynamics can be considered as a continuous-time system of state-space equations in control engineering. Analytical solutions are derived for electromagnetic-wave propagation in the time-fractional media based on state-transition matrices, and discrete time zero-order-hold equivalent models are developed and their analytical solutions are derived. The proposed models yield the same results as other reference methods, but are more flexible in terms of the number of simulation scenarios that can be tackled due to the application of the finite-difference scheme.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Yuhao Zhao, Fanhao Guo, Deshui Xu
Summary: This study develops a vibration analysis model of a nonlinear coupling-layered soft-core beam system and finds that nonlinear coupling layers are responsible for the nonlinear phenomena in the system. By using reasonable parameters for the nonlinear coupling layers, vibrations in the resonance regions can be reduced and effective control of the vibration energy of the soft-core beam system can be achieved.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
S. Kumar, H. Roy, A. Mitra, K. Ganguly
Summary: This study investigates the nonlinear dynamic behavior of bidirectional functionally graded plates (BFG) and unidirectional functionally graded plates (UFG). Two different methods, namely the whole domain method and the finite element method, are used to formulate the dynamic problem. The results show that all three plates exhibit hardening type nonlinearity, with the effect of material gradation parameters being more pronounced in simply supported plates.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Isaac A. Garcia, Susanna Maza
Summary: This paper analyzes the role of non-autonomous inverse Jacobi multipliers in the problem of nonexistence, existence, localization, and hyperbolic nature of periodic orbits of planar vector fields. It extends and generalizes previous results that focused only on the autonomous or periodic case, providing novel applications of inverse Jacobi multipliers.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Yongjian Liu, Yasi Lu, Calogero Vetro
Summary: This paper introduces a new double phase elliptic inclusion problem (DPEI) involving a nonlinear and nonhomogeneous partial differential operator. It establishes the existence and extremality results to the elliptic inclusion problem and provides definitions for weak solutions, subsolutions, and supersolutions.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)
Article
Mathematics, Applied
Shangshuai Li, Da-jun Zhang
Summary: In this paper, the Cauchy matrix structure of the spin-1 Gross-Pitaevskii equations is investigated. A 2 x 2 matrix nonlinear Schrodinger equation is derived using the Cauchy matrix approach, serving as an unreduced model for the spin-1 BEC system with explicit solutions. Suitable constraints are provided to obtain reductions for the classical and nonlocal spin-1 GP equations and their solutions, including one-soliton solution, two-soliton solution, and double-pole solution.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2024)