Article
Automation & Control Systems
Minglei Zhuang, Shenmin Song
Summary: This paper investigates the fixed-time attitude control problem for spacecraft under input saturation, actuator faults, and system uncertainties. Three novel saturated fixed-time nonsingular terminal sliding mode surfaces (NTSMSs) are designed, which can keep the system states fixed-time stable after the establishment of their sliding manifolds. Simulation results validate the effectiveness and superiority of the proposed control scheme.
Article
Automation & Control Systems
Ye Tian, Changkun Du, Pingli Lu, Qing Jiang, Haikuo Liu
Summary: This paper investigates the problem of fixed-time attitude coordinated control for multi-spacecraft systems with unknown external disturbance. A distributed fixed-time observer is introduced to estimate the states of the virtual leader, and a novel nonsingular fixed-time sliding mode tracking controller is proposed to address the attitude tracking problem. The proposed algorithms effectively achieve fixed-time attitude coordination for multiple spacecraft.
Article
Engineering, Aerospace
Yu-Yao Wu, Ying Zhang, Ai-Guo Wu
Summary: This paper addresses the problem of predetermined time attitude tracking control for rigid spacecraft with parameter uncertainty and external disturbance. A finite-time extended state observer is developed to handle the influence caused by the parameter uncertainty and external disturbance. A predetermined time controller based on the finite-time extended state observer is then designed using sliding mode control technique. By incorporating a novel time-varying sliding mode manifold, the proposed controller ensures that the tracking errors of the control system converge to the region of the origin at an arbitrary predetermined time. The attitude tracking performance of the proposed controller is demonstrated through numerical simulations.
Article
Engineering, Aerospace
Teng Cao, Huajun Gong, Peng Cheng, Yixuan Xue
Summary: This paper investigates a learning observer-based fault-tolerant control strategy for a rigid spacecraft attitude system with external disturbance, parameter uncertainty, and actuator faults. An adaptive learning observer design approach is proposed to estimate the attitude angular velocities and reconstruct actuator faults accurately and quickly. A fault-tolerant attitude tracking control scheme is developed for spacecraft attitude stabilization by combining the estimation value and backstepping control technique.
AEROSPACE SCIENCE AND TECHNOLOGY
(2022)
Article
Computer Science, Information Systems
Lijun Zhang, Yuanqing Xia, Ganghui Shen, Bing Cui
Summary: This paper presents a fixed-time attitude tracking control method that achieves faster convergence and higher accuracy by utilizing the FxTESO and FNTSMC strategy, while avoiding singularity. The efficiency and merits of this approach are verified through numerical simulation results.
SCIENCE CHINA-INFORMATION SCIENCES
(2021)
Article
Engineering, Aerospace
Dong Ye, An-Min Zou, Zhaowei Sun
Summary: In this article, a predefined-time predefined-bounded attitude tracking control scheme is proposed for rigid spacecraft with bounded external disturbances. The proposed control law can drive the attitude tracking errors to a predefined-bounded region within a predefined time, independently of initial conditions. The continuous nature of the controller ensures stability.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2022)
Article
Automation & Control Systems
Wen-Nian Qi, Ai-Guo Wu, Rui-Qi Dong
Summary: This paper proposes an adaptive neural network-based distributed protocol for fixed-time attitude consensus control of a group of rigid spacecraft in the presence of inertia uncertainties and external disturbances.
INTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING
(2023)
Article
Automation & Control Systems
Dayong Hu, Shijie Zhang, An-Min Zou
Summary: This paper investigates the practical predefined-time attitude cooperation control problem for a group of rigid spacecraft under an undirected communication graph. It proposes a distributed practical predefined-time state observer to estimate the leader's states and designs a distributed practical predefined-time attitude coordination controller to ensure the convergence of attitude tracking errors within a preset time for all follower spacecraft.
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
(2022)
Article
Automation & Control Systems
Zeng Wang, Jun Ma, Chang Wang
Summary: This paper presents an approach to address the problem of predefined-time attitude tracking for rigid spacecraft, ensuring performance boundaries in the presence of inertia uncertainties and bounded external disturbances. The proposed control method guarantees predefined-time stability with faster transient performance and higher steady-state accuracy.
IET CONTROL THEORY AND APPLICATIONS
(2022)
Article
Automation & Control Systems
Minglei Zhuang, Liguo Tan, Shenmin Song
Summary: This paper investigates the fixed-time stability of attitude coordination control for spacecraft formation flying in the presence of external disturbance. Novel nonsingular terminal sliding mode surface and corresponding controllers are designed to ensure stability with states converging to the origin within a fixed time. Simulation results demonstrate the effectiveness of the proposed approach.
Article
Automation & Control Systems
Jinhui Zhang, Weishuang Zhao, Ganghui Shen, Yuanqing Xia
Summary: This article introduces two terminal sliding mode control strategies for spacecraft attitude tracking, which are based on IDO and designed to mitigate chattering. The proposed CTSMC method achieves active disturbance rejection, while the MTSMC method further reduces chattering using adaptive methods and piecewise smooth functions. Simulation results demonstrate the feasibility of the proposed TSMC laws.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2021)
Article
Engineering, Mechanical
Shuzong Xie, Qiang Chen, Xiongxiong He, Meiling Tao, Liang Tao
Summary: This paper proposes a finite-time command-filtered approximation-free attitude tracking control strategy for rigid spacecraft, which includes a novel finite-time prescribed performance function and error compensation mechanism to avoid function approximations, reducing computational burden and complexity. Simulations demonstrate the effectiveness of the proposed method.
NONLINEAR DYNAMICS
(2022)
Article
Automation & Control Systems
Haichao Zhang, Zhaoyue Chen, Bing Xiao, Bo Li
Summary: This paper investigates the attitude tracking control problem of rigid spacecraft under external disturbance and prescribed performance constraints. Firstly, a fast fixed-time stability theorem is developed. Then, a continuous disturbance observer is designed to drive the estimation error into a small neighborhood containing zero within a fixed time. Moreover, the spacecraft's attitude tracking error is transformed into unconstrained dynamics. A disturbance observer-based prescribed performance tracking controller is designed to stabilize the unconstrained dynamics within a fixed time, ensuring that the attitude tracking errors meet the prescribed performance. Simulation examples of spacecraft are presented to validate the effectiveness of the proposed controller.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2023)
Article
Automation & Control Systems
Qinglei Hu, Wei Chen, Lei Guo, James D. Biggs
Summary: An adaptive sliding mode control strategy is proposed to address the attitude tracking issue of imaging spacecraft subject to system uncertainties. The controller ensures practical fixed-time closed-loop stability and circumvents the unwinding phenomenon arising in quaternion representations. Rigorous Lyapunov analyses are used to guarantee fixed-time closed-loop stability regardless of the system initial states.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2022)
Article
Mathematics
Qijia Yao, Hadi Jahanshahi, Irene Moroz, Naif D. Alotaibi, Stelios Bekiros
Summary: This paper proposes a novel neural adaptive fixed-time control approach for the attitude stabilization and vibration suppression of flexible spacecraft. The proposed controller, which incorporates a neural network, ensures robustness against uncertainties and insensitivity to elastic vibrations. The excellent performance of the proposed control approach is verified through simulations and comparisons.
Article
Automation & Control Systems
Yingying Cheng, Ruting Jia, Haibo Du, Guanghui Wen, Wenwu Zhu
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2018)
Article
Automation & Control Systems
Haibo Du, Wenwu Zhu, Guanghui Wen, Zhisheng Duan, Jinhu Lu
IEEE TRANSACTIONS ON CYBERNETICS
(2019)
Article
Automation & Control Systems
Haibo Du, Junyong Zhai, Michael Z. Q. Chen, Wenwu Zhu
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2019)
Article
Automation & Control Systems
Haibo Du, Congrang Jiang, Guanghui Wen, Wenwu Zhu, Yingying Cheng
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2019)
Article
Automation & Control Systems
Yingying Cheng, Qingchun Jin, Haibo Du, Yeyuan Xu, Wenwu Zhu, Congrang Jiang
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2019)
Article
Automation & Control Systems
Yongzheng Cong, Haibo Du, Qingchun Jin, Wenwu Zhu, Xiangze Lin
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2020)
Article
Automation & Control Systems
Wenwu Zhu, Dongbo Chen, Haibo Du, Xiangyu Wang
TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL
(2020)
Article
Engineering, Mechanical
Linan Wang, Haibo Du, Weijian Zhang, Di Wu, Wenwu Zhu
NONLINEAR DYNAMICS
(2020)
Article
Automation & Control Systems
Wenwu Zhu, Haibo Du, Shihua Li
Summary: This article investigates the problem of finite-time attitude tracking control for a rigid spacecraft with event-triggered inputs. A new event-triggered nonsmooth attitude tracking controller is proposed, based on the emulation method of a continuous-time finite-time attitude controller, which shows better disturbance rejection ability. The stability analysis and simulation results confirm the effectiveness of the proposed controller.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2022)
Article
Automation & Control Systems
Wenwu Zhu, Haibo Du, Shihua Li, Xinghuo Yu
Summary: This article proposes a control method for global finite-time output stabilization of second-order nonlinear systems with uncertain nonlinear dynamics and unknown external disturbance. The simulation results demonstrate the superiority of the proposed control method in terms of both convergence performance and disturbance rejection performance.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2021)
Article
Computer Science, Information Systems
Shiji Zhou, Zhi Wang, Chenghao Hu, Yinan Mao, Haopeng Yan, Shanghang Zhang, Chuan Wu, Wenwu Zhu
Summary: This paper introduces an online caching policy for dynamic environments where popularity is highly dynamic and cannot be modeled using regular stochastic patterns. The policy achieves reduced user access latency and faster content downloads through an online optimization framework and dynamic online learning method.
IEEE TRANSACTIONS ON MULTIMEDIA
(2023)
Proceedings Paper
Automation & Control Systems
Yufeng He, Wenwu Zhu, Linyan Han, Shihua Li
Summary: This paper studies the method of estimating the interaction torque of a rigid robotic manipulator under low-speed conditions. A nonlinear friction model is established to analyze the influence of friction, and a least square identification method is proposed taking noise into consideration. Furthermore, a finite-time extended state observer is developed to estimate the interaction torque, capable of estimating time-varying forces. The stability of the system is demonstrated based on the Lyapunov theory. Experimental results are provided to demonstrate the effectiveness of the proposed method.
2022 41ST CHINESE CONTROL CONFERENCE (CCC)
(2022)
Proceedings Paper
Automation & Control Systems
Linan Wang, Bo Yu, HaiBo Du, Di Wu, Wenwu Zhu, Shihong Ding
IECON 2020: THE 46TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
(2020)
Proceedings Paper
Automation & Control Systems
Haibo Du, Kunbin Liu, Di Wu, Wenwu Zhu, Shihong Ding
2018 IEEE 8TH ANNUAL INTERNATIONAL CONFERENCE ON CYBER TECHNOLOGY IN AUTOMATION, CONTROL, AND INTELLIGENT SYSTEMS (IEEE-CYBER)
(2018)
