Article
Automation & Control Systems
Chao Zhang, Xuemei Ren, Jing Na, Dongdong Zheng
Summary: This article proposes a safe dual-layer nested adaptive prescribed performance control approach for nonlinear systems, which ensures predefined transient and steady-state performances for the discontinuous reference signal. A monitoring mechanism and a novel dual-layer nested adaptive sliding mode compensation technique are introduced to handle system uncertainties effectively.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Mathematics, Applied
Hao Wen, Zixuan Liang, Hexiong Zhou, Xinyang Li, Baoheng Yao, Zhihua Mao, Lian Lian
Summary: Sliding Mode Control is a type of robust control method, and this study proposes a new adaptive sliding mode control method that can handle the control problem for unknown uncertain non-linear systems without prior knowledge. The method can also ensure state error convergence at the same boundary for different systems. Two illustrative examples are presented to demonstrate the main features and applicability of the proposed method.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2023)
Article
Automation & Control Systems
Zhangmin Huang, Chenchen Sun
Summary: In order to achieve excellent tracking performance of dynamic systems under uncertain disturbances, an adaptive dynamic global robust sliding mode control (ADGRSMC) approach is devised in this paper. A novel global robust sliding manifold is designed by integrating an auxiliary function into a proportional-integral-derivative (PID) type sliding structure, which can omit the reaching stage, achieve global robustness, and perform fast transient response and suppress steady state errors. A dynamic nonsingular terminal sliding structure is also conceived to attenuate chattering phenomena without deteriorating the tracking accuracy and robustness property. Furthermore, a novel adaptive law is developed to adjust the switching gain, so that the prior information of perturbations is unnecessary and the chattering effect can be further alleviated. The finite time stability of the adopted ADGRSMC approach is proven according to the Lyapunov stability theory, and its superiority is validated through comparative simulation studies.
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
(2023)
Article
Automation & Control Systems
Romeo Ortega, Rafael Cisneros, Lei Wang, Arjan van der Schaft
Summary: This paper addresses the problem of indirect adaptive control of nonlinear systems. By estimating system parameters and designing a controller, the system can be regulated and tracked. The proposed approach shows better performance compared to other existing solutions.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2022)
Article
Engineering, Multidisciplinary
Boutheina Maalej, Rim Jallouli Khlif, Chokri Mhiri, Mohamed Habib Elleuch, Nabil Derbel
Summary: A novel L-1 adaptive control approach is proposed in this paper, which guarantees desired control performance by optimizing filter parameters using genetic algorithms. Simulation results demonstrate the efficiency of this control method compared to classical L-1 adaptive control in nominal cases and in the presence of noise.
MATHEMATICAL PROBLEMS IN ENGINEERING
(2021)
Article
Mathematics, Interdisciplinary Applications
Yongbing Huangfu, Kaijuan Xue
Summary: This work focuses on solving the synchronization problem of uncertain chaotic systems with dead zones by utilizing Lyapunov stability theorems, fuzzy inference, and fuzzy adaptive controllers. The synchronization between two chaotic systems with dead zones is achieved, and a fuzzy variable-structure control is implemented. The stability of the system is proven rigorously, and simulation examples are provided to validate the theoretical results.
Article
Automation & Control Systems
Aicha Znidi, Khadija Dehri, Ahmed Said Nouri
Summary: This paper proposes three techniques for dealing with the uncertain Hammerstein nonlinear model. By using discrete sliding mode control (SMC) and new adaptive control, the performance of classical control is improved, and a detailed robustness analysis is conducted.
TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL
(2022)
Article
Engineering, Aerospace
Xiong Xie, Tao Sheng, Liang He
Summary: This paper proposes a control scheme to address the robust attitude consensus tracking problem in spacecraft formation flying systems with unknown lumped disturbances. By developing a nonlinear disturbance observer and a variable structure control algorithm, robust attitude tracking is achieved without requiring precise disturbance information. Numerical simulations demonstrate the effectiveness of the proposed control scheme.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Computer Science, Information Systems
Mohammadreza Askari Sepestanaki, Hamidreza Bahmani, Majid Ali Ali, Abolfazl Jalilvand, Saleh Mobayen, Afef Fekih
Summary: This paper explores the theory of control on nonlinear systems and introduces an indirect terminal sliding mode control technique based on adaptive and fuzzy rules. The proposed method improves the controller performance by using a continuous barrier function and solves the chattering problem typically seen in sliding mode control. It also guarantees the asymptotical stability of the system dynamics within finite time.
Article
Automation & Control Systems
Heyu Hu, Jianfu Cao
Summary: This paper proposes a new control method for dual-arm robots in slabstone installation tasks to meet the requirements of complexity and high precision. By combining an adaptive variable impedance tracker and a tracking controller, the force/position control is achieved, and the effectiveness of the algorithm is verified through simulation of various installation scenarios.
Article
Automation & Control Systems
Xiao Peng, Yijing Wang, Zhiqiang Zuo
Summary: This paper discusses the issue of global asymptotic stabilization for non-smooth variable order nonlinear switched systems with partial unstable modes. The existence and uniqueness of solution for the considered system is verified through Gronwall-Bellman inequality and the inductive method. Stabilization criteria are derived under the framework of Filippov differential inclusion, utilizing mode-dependent average dwell time and dwell time schemes. Real-life objects are introduced and a numerical simulation is provided to demonstrate the validity of the results.
Article
Mathematics, Applied
Salman Ijaz, Chen Fuyang, Mirza Tariq Hamayun, Haris Anwaar
Summary: This paper investigates a nonlinear control approach for high maneuvering fighter aircraft to maintain acceptable flight quality at high angles of attack. Adaptive control strategies are designed for two loops using real-time flight data to estimate aerodynamics coefficients.
APPLIED MATHEMATICS AND COMPUTATION
(2021)
Article
Computer Science, Artificial Intelligence
Min Li, Peng Shi, Ming Liu, Yingchun Zhang, Shuoyu Wang
Summary: This article introduces a new event-triggered adaptive sliding mode control scheme to address actuator failures and signal quantization in a class of T-S fuzzy systems, ensuring the reachability of the proposed sliding surface with the designed control scheme. Additionally, the existence of minimal inter-event time and sufficient conditions to avoid Zeno behavior are analyzed and presented.
IEEE TRANSACTIONS ON FUZZY SYSTEMS
(2021)
Article
Engineering, Mechanical
Xiao Peng, Yijing Wang, Zhiqiang Zuo
Summary: This paper addresses the issues of global asymptotic stabilization and finite-time stabilization for variable-order fractional systems with partial a priori bounded disturbances by designing an appropriate adaptive controller. The existence and uniqueness of the solution for the considered system under the proposed control strategy is verified using the inductive method and Arzela-Ascoli theorem. Sufficient stabilization criteria are established under the framework of variable-order fractional Filippov differential inclusion through Lyapunov stability theory, non-smooth analysis, and inequality technique.
NONLINEAR DYNAMICS
(2021)
Article
Mechanics
Pan Fang, Shuangquan Shi, Min Zou, Xiaogang Lu, Dejin Wang
Summary: By analyzing the defects of self-synchronization vibration system, this paper establishes the dynamic model of a dual-rotor space vibration system and designs controllers based on the master-slave control structure and sliding mode control algorithm to achieve synchronization between two eccentric rotors. Simulation results demonstrate the strong robustness of the controllers.
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
(2022)
Article
Automation & Control Systems
J. B. Oliveira, J. Boaventura-Cunha, P. B. Moura Oliveira
OPTIMAL CONTROL APPLICATIONS & METHODS
(2016)
Article
Engineering, Mechanical
Josenalde Oliveira, Paulo Moura Oliveira, Jose Boaventura-Cunha, Tatiana Pinho
NONLINEAR DYNAMICS
(2017)
Article
Engineering, Electrical & Electronic
Tatiana M. Pinho, Joao Paulo Coelho, Josenalde Oliveira, Jose Boaventura-Cunha
JOURNAL OF SENSORS
(2017)
Article
Multidisciplinary Sciences
Emmanuelle P. E. Silva, Edgar P. Moraes, Katya Anaya, Yhelda M. O. Silva, Heloysa A. P. Lopes, Julio C. Andrade Neto, Juliana P. F. Oliveira, Josenalde B. Oliveira, Adriano H. N. Rangel
Summary: This report demonstrates the use of image processing and multivariate analysis techniques as a bio-analytical tool for mastitis screening in cows. A dataset of 144 sequential images collected from milk samples of 48 cows was analyzed using lactoperoxidase activity. The resulting dataset was evaluated using Principal Component Analysis, Multiple Linear Regression, and Second-Order Regression, yielding interesting results in terms of enzymatic activity correlation and somatic cell count, important indicators of mastitis. The method also offers potential advantages such as quality control, ease of use, and lower cost.
Article
Robotics
Josenalde Oliveira, Paulo Moura Oliveira, Jose Boaventura-Cunha, Tatiana Pinho
Proceedings Paper
Automation & Control Systems
P. B. de Moura Oliveira, Josenalde Oliveira, Jose Boaventura Cunha
DISTRIBUTED COMPUTING AND ARTIFICIAL INTELLIGENCE
(2018)
Proceedings Paper
Automation & Control Systems
Josenalde Oliveira, Paulo Moura Oliveira, Tatiana M. Pinho, Jose Boaventura Cunha
Proceedings Paper
Automation & Control Systems
Stefan Vidal, Paulo Moura Oliveira, Josenalde Oliveira, Tatiana Pinho, Jose Boaventura Cunha
2018 13TH APCA INTERNATIONAL CONFERENCE ON CONTROL AND SOFT COMPUTING (CONTROLO)
(2018)
Proceedings Paper
Automation & Control Systems
Joao Paulo Coelho, Pedro Santos, Tatiana M. Pinho, Jose Boaventura-Cunha, Josenalde Oliveira
2018 13TH APCA INTERNATIONAL CONFERENCE ON CONTROL AND SOFT COMPUTING (CONTROLO)
(2018)
Proceedings Paper
Automation & Control Systems
Tatiana M. Pinho, Joao Paulo Coelho, Josenalde Oliveira, Jose Boaventura-Cunha
2018 13TH APCA INTERNATIONAL CONFERENCE ON CONTROL AND SOFT COMPUTING (CONTROLO)
(2018)
Proceedings Paper
Automation & Control Systems
Josenalde Oliveira, Paulo Moura Oliveira, Tatiana M. Pinho, Jose Boaventura-Cunha
2017 25TH MEDITERRANEAN CONFERENCE ON CONTROL AND AUTOMATION (MED)
(2017)
Proceedings Paper
Automation & Control Systems
Josenalde Barbosa de Oliveira, Tatiana M. Pinho, Joao Paulo Coelho, Jose Boaventura-Cunha, Paulo Moura Oliveira
Proceedings Paper
Automation & Control Systems
Joao Paulo Coelho, Tatiana M. Pinho, Jose Boaventura-Cunha, Josenalde B. de Oliveira
Article
Automation & Control Systems
Leonardo R. L. Teixeira, Josenalde B. Oliveira, Aldayr D. Araujo
JOURNAL OF CONTROL AUTOMATION AND ELECTRICAL SYSTEMS
(2015)
