Journal articles: 'Finite-time cooperative control'

1

Yucelen, Tansel, Zhen Kan, and Eduardo Pasiliao. "Finite-Time Cooperative Engagement." IEEE Transactions on Automatic Control 64, no. 8 (August 2019): 3521–26. http://dx.doi.org/10.1109/tac.2018.2881132.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Li, Yue, Jun Yang, and Ke Zhang. "Distributed Finite-Time Cooperative Control for Quadrotor Formation." IEEE Access 7 (2019): 66753–63. http://dx.doi.org/10.1109/access.2019.2915594.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Jiang, Zhanyuan, Jianquan Ge, Qiangqiang Xu, and Tao Yang. "Terminal Impact Time Control Cooperative Guidance Law for UAVs under Time-Varying Velocity." Drones 5, no. 3 (September 17, 2021): 100. http://dx.doi.org/10.3390/drones5030100.

Full text

Abstract:

Aiming at the problem that multiple Unmanned Aerial Vehicles (UAVs) attack the stationary target cooperatively under time-varying velocity, the cooperative guidance law with finite time convergence on two-dimensional plan and the three-dimensional cooperative guidance laws with impact time constraint are designed separately in this paper. Firstly, based on the relative motion equation between UAV and target on two-dimensional plane, the time cooperative guidance model of multiple UAVs is established. Then based on the consistency theory and graph theory, a distributed time cooperative guidance law is designed, which can ensure that the impact time of all UAVs can be quickly consistent in a limited time. Next, the cooperative guidance problem is expanded from two-dimensional plane to three-dimensional space, the motion model between UAV and target in three-dimensional space is established and the expression of time-to-go estimation under time-varying velocity is derived. Finally, according to whether there is the communication among UAVs under the condition of time-varying velocity, a multiple UAVs three-dimensional cooperative guidance law based on desired impact time and a multiple UAVs three-dimensional cooperative guidance law based on coordination variables are designed, respectively. The simulation results show that the cooperative guidance law with finite time convergence on two-dimensional plan and the three-dimensional cooperative guidance law with impact time constraint proposed in this paper are effective, which can both realize the saturation attack under the time-varying velocity.

APA, Harvard, Vancouver, ISO, and other styles

4

Jiao, Jianfang, and Mingyu Fu. "Finite-Time Cooperative Tracking Control Algorithm for Multiple Surface Vessels." Abstract and Applied Analysis 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/807102.

Full text

Abstract:

We investigate the problem of finite-time cooperative tracking for multiple surface vessels in the presence of external disturbances. A robust finite-time cooperative tracking algorithm based on terminal sliding-mode control is proposed for multiple surface vessels. In light of the leader-follower strategy, a virtual leader vessel is defined to provide reference point for other surface vessels to form the desired formation. Specifically, the proposed algorithm only requires the communication topology among the surface vessels to be a directed graph with a directed spanning tree. The robustness is achieved by compensating the upper bound of external disturbance in the control input, and the global finite-time stability is proved by Lyapunov stability theory. Finally, the effectiveness of the proposed finite-time cooperative tracking control algorithm is demonstrated by simulation results.

APA, Harvard, Vancouver, ISO, and other styles

5

Tan, Wenbo, and Na Huang. "Event-based rigid formation system with cooperative finite-time control." IMA Journal of Mathematical Control and Information 39, no. 1 (January 18, 2022): 235–53. http://dx.doi.org/10.1093/imamci/dnab041.

Full text

Abstract:

Abstract We note that most of the rigid formation control based on distance-constrained theory only guarantees exponential or asymptotic convergence of the system. In this paper, we proposed a finite-time event-based control scheme applied in rigid formation control system. Centralized finite-time event-based formation control system is designed where the next trigger time is determined by a central event-based controller, which broadcasts and updates the control input signal to all agents. Then, we build a distributed finite-time event-based control strategy, different from the above system where each agent only uses its own local information. For the above two protocols, we discussed the trigger situation, which ensures that the formation system converges in a finite time. Finally, simulation results proved the performance and effectiveness of the proposed finite-time event-based scheme.

APA, Harvard, Vancouver, ISO, and other styles

6

Chen, Gang, Yuanlong Yue, and Yongduan Song. "Finite-time cooperative-tracking control for networked Euler–Lagrange systems." IET Control Theory & Applications 7, no. 11 (July 18, 2013): 1487–97. http://dx.doi.org/10.1049/iet-cta.2013.0205.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Ghasemi, Masood, and Sergey G. Nersesov. "Sliding Mode Cooperative Control for Multirobot Systems: A Finite-Time Approach." Mathematical Problems in Engineering 2013 (2013): 1–16. http://dx.doi.org/10.1155/2013/450201.

Full text

Abstract:

Finite-time stability in dynamical systems theory involves systems whose trajectories converge to an equilibrium state in finite time. In this paper, we use the notion of finite-time stability to apply it to the problem of coordinated motion in multiagent systems. We consider a group of agents described by Euler-Lagrange dynamics along with a leader agent with an objective to reach and maintain a desired formation characterized by steady-state distances between the neighboring agents in finite time. We use graph theoretic notions to characterize communication topology in the network determined by the information flow directions and captured by the graph Laplacian matrix. Furthermore, using sliding mode control approach, we design decentralized control inputs for individual agents that use only data from the neighboring agents which directly communicate their state information to the current agent in order to drive the current agent to the desired steady state. We further extend these results to multiagent systems involving underactuated dynamical agents such as mobile wheeled robots. For this case, we show that while the position variables can be coordinated in finite time, the orientation variables converge to the steady states asymptotically. Finally, we validate our results experimentally using a wheeled mobile robot platform.

APA, Harvard, Vancouver, ISO, and other styles

8

Zhang, Lijun, Yuanqing Xia, Bing Cui, Jinhui Zhang, and Ganghui Shen. "Finite‐time cooperative attitude control for leader‐follower spacecraft with fixed‐time observer." International Journal of Robust and Nonlinear Control 30, no. 17 (September 3, 2020): 7013–30. http://dx.doi.org/10.1002/rnc.5160.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Chen, Gang, and Qing Lin. "Finite-Time Observer Based Cooperative Tracking Control of Networked Lagrange Systems." Abstract and Applied Analysis 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/135690.

Full text

Abstract:

This paper investigates the cooperative tracking control problem for networked uncertain Lagrange systems with a leader-follower structure on digraphs. Since the leader’s information is only available to a portion of the followers, finite-time observers are designed to estimate the leader’s velocity. Based on the estimated velocity information and the universal approximation ability of fuzzy logic systems, a distributed adaptive fuzzy tracking control protocol is first proposed for the fault-free Lagrange systems. Then, the actuator faults are considered and a distributed fault-tolerant controller is presented. Based on graph theory and Lyapunov theory, the convergence analyses for the proposed algorithms are provided. The development in this paper is suitable for the general directed communication topology. Numerical simulation results are presented to show the closed-loop performance of the proposed control law and illustrate its robustness to actuator faults and external disturbances.

APA, Harvard, Vancouver, ISO, and other styles

10

He, Xiaoyan, Qingyun Wang, and Wenwu Yu. "Finite-time distributed cooperative attitude tracking control for multiple rigid spacecraft." Applied Mathematics and Computation 256 (April 2015): 724–34. http://dx.doi.org/10.1016/j.amc.2015.01.061.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Yang, Yize, Hongyong Yang, and Fei Liu. "Finite-Time Group Consensus of Distributed Multiagent Systems Based on Competition Mechanism." Mathematical Problems in Engineering 2020 (March 16, 2020): 1–8. http://dx.doi.org/10.1155/2020/2347697.

Full text

Abstract:

With the development of communication technology, distributed cooperative controls of multiagent systems (MAS) have been applied in many fields. Based on the communication between the agents, multiple individual systems are composed of a distributed network. Since the function of the agents is different, the distributed network can be divided into many parts. For first-order/second-order dynamic MAS, group cooperation algorithms with the competition mechanism are proposed in this paper. By applying modern control theory and homogeneous theory, finite-time stabilities for the cooperation motion of dynamic MAS are analyzed. By studying the dynamic properties of agents, finite-time group consensus of distributed MAS based on directed topology is obtained. Finally, the system simulation results are given to illustrate the effectiveness of the conclusion.

APA, Harvard, Vancouver, ISO, and other styles

12

Du, Haibo, and Shihua Li. "Finite-time cooperative attitude control of multiple spacecraft using terminal sliding mode control technique." International Journal of Modelling, Identification and Control 16, no. 4 (2012): 327. http://dx.doi.org/10.1504/ijmic.2012.048265.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Firouzbahrami, Majid, and Amin Nobakhti. "Cooperative fixed-time/finite-time distributed robust optimization of multi-agent systems." Automatica 142 (August 2022): 110358. http://dx.doi.org/10.1016/j.automatica.2022.110358.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Chai, Yuan, and Jianjun Luo. "Finite-time fuzzy game-based attitude control for on-orbit cooperative transporting." Journal of the Franklin Institute 358, no. 10 (July 2021): 5237–61. http://dx.doi.org/10.1016/j.jfranklin.2021.04.042.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Han, Qiang, Yongshuai Zhou, Xin Liu, and Xianguo Tuo. "Event-Triggered Finite-Time Attitude Cooperative Control for Multiple Unmanned Aerial Vehicles." Applied Bionics and Biomechanics 2022 (February 21, 2022): 1–13. http://dx.doi.org/10.1155/2022/5875004.

Full text

Abstract:

The finite-time attitude cooperative control problem for a group of multiple unmanned aerial vehicle systems with external disturbances and uncertain parameters is discussed in this paper. The dynamics of the systems is described by quaternion avoiding the singularity. Based on the attitude error and angular velocity error, a novel nonsingular terminal sliding mode surface is proposed for the controller with event-triggered scheme. The lumped disturbances are estimated by neural networks with adaptive law. The communication frequency is decreased by the proposed distributed event-triggered based sliding mode controller. Lyapunov theory is utilized to analyze the stability of the systems, and the Zeno behavior is avoided by rigorous proof. Finally, simulation examples are presented to illustrate the efficiency of the proposed control algorithm.

APA, Harvard, Vancouver, ISO, and other styles

16

Wang, Xinsheng, Huaqiang Zhang, and Changxi Li. "Distributed finite‐time cooperative control of droop‐controlled microgrids under switching topology." IET Renewable Power Generation 11, no. 5 (March 16, 2017): 707–14. http://dx.doi.org/10.1049/iet-rpg.2016.0526.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Lu, Pingli, Chao Gan, and Xiangdong Liu. "Finite-time distributed cooperative attitude control for multiple spacecraft with actuator saturation." IET Control Theory & Applications 8, no. 18 (December 11, 2014): 2186–98. http://dx.doi.org/10.1049/iet-cta.2014.0147.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Zhou, Ning, Yuanqing Xia, Mengyin Fu, and Yong Li. "Distributed cooperative control design for finite-time attitude synchronisation of rigid spacecraft." IET Control Theory & Applications 9, no. 10 (June 25, 2015): 1561–70. http://dx.doi.org/10.1049/iet-cta.2014.0878.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Du, Haibo, Guanghui Wen, Yingying Cheng, Yigang He, and Ruting Jia. "Distributed Finite-Time Cooperative Control of Multiple High-Order Nonholonomic Mobile Robots." IEEE Transactions on Neural Networks and Learning Systems 28, no. 12 (December 2017): 2998–3006. http://dx.doi.org/10.1109/tnnls.2016.2610140.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Song, Ge, Peng Shi, Shuoyu Wang, and Jeng-Shyang Pan. "A new finite-time cooperative control algorithm for uncertain multi-agent systems." International Journal of Systems Science 50, no. 5 (March 2019): 1006–16. http://dx.doi.org/10.1080/00207721.2019.1586007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Petrosian, O. L., E. V. Gromova, and S. V. Pogozhev. "Strong Time-Consistent Subset of the Core in Cooperative Differential Games with Finite Time Horizon." Automation and Remote Control 79, no. 10 (October 2018): 1912–28. http://dx.doi.org/10.1134/s0005117918100144.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Zhang, Yan-hui, Jian Sun, Wei He, and Hong-yi Li. "Cooperative adaptive finite-time control for stochastic multi-agent systems with input quantisation." IET Control Theory & Applications 13, no. 6 (April 16, 2019): 746–54. http://dx.doi.org/10.1049/iet-cta.2018.5330.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Caiazzo, Bianca, Dario Giuseppe Lui, Alberto Petrillo, and Stefania Santini. "Cooperative Finite-time Control for autonomous vehicles platoons with nonuniform V2V communication delays." IFAC-PapersOnLine 55, no. 36 (2022): 145–50. http://dx.doi.org/10.1016/j.ifacol.2022.11.348.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Hu, Yu, Qiang Lu, and Yanzhu Hu. "Event-Based Communication and Finite-Time Consensus Control of Mobile Sensor Networks for Environmental Monitoring." Sensors 18, no. 8 (August 3, 2018): 2547. http://dx.doi.org/10.3390/s18082547.

Full text

Abstract:

This paper deals with the problem of environmental monitoring by designing a cooperative control scheme for mobile sensor networks. The proposed cooperative control scheme includes three main modules: a wireless communication module, a direction decision module, and a motion control module. In the wireless communication module, an event-based communication rule is proposed, which means that mobile sensor nodes do not send their positions, velocities, and the data of environmental attributes to the other sensor nodes in real-time for the coordination and control of mobile sensor networks. Due to using the event-based communication rule, the communication bandwidth can be saved. In the direction decision module, a radial basis function network is used to model the monitored environment and is updated in terms of the sampled environmental data and the environmental data from the other sensor nodes by the wireless communication module. The updated environment model is used to guide the mobile sensor network to move towards the region of interest in order to efficiently model the distribution map of environmental attributes, such as temperature, salinity, and pH values for the monitored environment. In the motion control module, a finite-time consensus control approach is proposed to enable the sensor nodes to quickly change their movement directions in light of the gradient information from the environment model. As a result of using the event-based communication rule in the wireless communication module, the proposed control approach can also lower the updating times of the control signal. In particular, the proposed cooperative control scheme is still efficient under the directed wireless communication situation. Finally, the effectiveness of the proposed cooperative control scheme is illustrated for the problem of environmental monitoring.

APA, Harvard, Vancouver, ISO, and other styles

25

Lu, Qiang, Qing-Long Han, Botao Zhang, Dongliang Liu, and Shirong Liu. "Cooperative Control of Mobile Sensor Networks for Environmental Monitoring: An Event-Triggered Finite-Time Control Scheme." IEEE Transactions on Cybernetics 47, no. 12 (December 2017): 4134–47. http://dx.doi.org/10.1109/tcyb.2016.2601110.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Hou, Delong, Xuejiao Sun, Qing Wang, and Chaoyang Dong. "Finite-time cooperative guidance laws for multiple missiles with acceleration saturation constraints." IET Control Theory & Applications 9, no. 10 (June 25, 2015): 1525–35. http://dx.doi.org/10.1049/iet-cta.2014.0443.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Ullah, Shafaat, Laiq Khan, Mohsin Jamil, Muhammad Jafar, Sidra Mumtaz, and Saghir Ahmad. "A Finite-Time Robust Distributed Cooperative Secondary Control Protocol for Droop-Based Islanded AC Microgrids." Energies 14, no. 10 (May 19, 2021): 2936. http://dx.doi.org/10.3390/en14102936.

Full text

Abstract:

In this research work, a resilient finite-time consensus-based distributed secondary control protocol is presented for droop-based distributed generating (DG) units of an islanded AC microgrid (MG). Through a multi-agent control structure, the DG units of the microgrid adjust their active power outputs so that they reach an agreed-upon value in a finite time. Concurrently, all the DG units are forced to operate with their frequencies regulated to the reference MG frequency in a finite time, despite time-varying load perturbations. Each DG unit is provided with a hierarchical control architecture, where the primary control is achieved using the droop control method, while the secondary control is established through the proposed distributed control protocol. The communication between DG units takes place over a sparse communication network. The proposed control protocol is robust to both small and sufficiently large communication latencies and it supports the plug-and-play feature of DG units. Different time-domain-based numerical simulations are carried out on a small as well as large microgrid testbenches in Matlab/Simulink and demonstrate the correctness and effectiveness of the proposed distributed control protocol. A comparative study is also presented with the existing distributed control protocol, and it is found that the proposed strategy is superior in its performance.

APA, Harvard, Vancouver, ISO, and other styles

28

Han, Qiang, Xianguo Tuo, Yuxin Tang, and Ping He. "Finite-Time Attitude Cooperative Control of Multiple Unmanned Aerial Vehicles via Fast Nonsingular Terminal Sliding Mode Control." Wireless Communications and Mobile Computing 2022 (February 23, 2022): 1–11. http://dx.doi.org/10.1155/2022/4324626.

Full text

Abstract:

This paper discusses the attitude cooperative control of multiple unmanned aerial vehicle systems (MUAVs) with unknown dynamics and external disturbances. Distributed fast nonsingular terminal sliding mode control (FNTSMC) is used with quaternion-description dynamical systems. The dynamics and external disturbances are changed into lumped disturbances by formula transformation. A robust nonlinear disturbance observer is proposed to estimate the lumped disturbances in finite time. Then, combining the fast terminal sliding mode control, distributed FNTSMC controllers are designed under the directed topology. Based on the Lyapunov stability theory and graph theory, convergence stability of the nonlinear systems is strictly proved, and the tracking errors between the leader and the followers approach to a small residual set. Finally, the simulation example is presented to illustrate the effectiveness and advantage of the proposed controllers.

APA, Harvard, Vancouver, ISO, and other styles

29

Zhang, Tiehui, Xinru Ma, Hengyu Li, Zhaoyan Wang, Shaorong Xie, and Jun Luo. "Ordered-Bipartite Consensus of Multi-Agent Systems under Finite Time Control." Applied Sciences 12, no. 23 (December 2, 2022): 12337. http://dx.doi.org/10.3390/app122312337.

Full text

Abstract:

Since group consensus (GC) control accounts for one-half of the multi-robot coordination domain, as does complete consensus control, this paper will formulate a certain kind of GC and group bipartite consensus (GBC) in finite time for multi-agent systems (MAS). It should be noted that the key to this work is that information transfer under acyclic partition networks is zero-sum between groups and the cooperative–competitive interaction. The general GC will firstly be achieved under acyclic partition, which reflects the fact that such topology allows the MAS to reach agreement in an ordered and hierarchical process. Further, the information communication is zero-sum within each group under the acyclic partition signed digraph. Thus, the group–bipartite agreement for MAS is given under acyclic bipartite topology. These results display not only an ordered, hierarchical state, but also an intra-group symmetric state. In addition, simulation examples are presented in parallel with the theoretical results.

APA, Harvard, Vancouver, ISO, and other styles

30

You, H., and F. J. Zhao. "Distributed synergetic guidance law for multiple missiles with angle-of-attack constraint." Aeronautical Journal 124, no. 1274 (March 2, 2020): 533–48. http://dx.doi.org/10.1017/aer.2019.122.

Full text

Abstract:

AbstractBased on the missiles with adjustable thrust, a distributed synergetic guidance law for multiple missiles with angle-of-attack constraint is designed to achieve a cooperative attack by multiple missiles on a moving target. Divide the guidance law into two parts: the line of sight (LOS) direction and the normal direction of LOS. The guidance law is designed in LOS direction based on the multi-agent system cooperative control theory and super-twisting algorithm, which can control missiles’ time-to-go converging in finite time. In the normal direction of LOS, the other guidance law is designed to control missiles hitting the target with impact angle constraint based on zeroing LOS rate thought and finite-time sliding mode control theory. The two non-homogeneous disturbance observers are designed to estimate the target manoeuvring information in the two parts of the guidance law. The simulation results show that the guidance law designed by this paper can complete the cooperative attack task while suppressing the chattering phenomenon effectively.

APA, Harvard, Vancouver, ISO, and other styles

31

Yuan, Jian, Feng Li Zhang, and Zhong Hai Zhou. "Finite-Time Formation Control for Autonomous Underwater Vehicles with Limited Speed and Communication Range." Applied Mechanics and Materials 511-512 (February 2014): 909–12. http://dx.doi.org/10.4028/www.scientific.net/amm.511-512.909.

Full text

Abstract:

Cooperative control of multiple autonomous underwater vehicles (AUVs) plays an important role on marine scientific investigation and marine development. The formation of multi-AUV can significantly enhance applications on the marine sampling, imaging, surveillance and communications. Compared to the formation control of multi-robot, the formation control of multi-AUV is particularly difficult, especially on controlling attitude and direction of AUV; what is more, the communication method among AUVs is acoustic. When communication distance increases, the communication qualities deteriorate quickly; this mainly makes time-delay, signal attenuation and distortion. Although formation control of multiple AUVs obtains a wide range of attention in recent years, the fruits on formation control problem are less than ones on land multi-robot problems. For example, Fiorelli conducted a collaborative and adaptive sampling research of multi-AUV at the Monterey Bay [; Yu and Ura carried out the cable-based modular fast-moving and obstacle-avoidance experiments, and presented an interconnected multi-AUV system with three-dimension sensors. On the aspect of formation control framework [2-, [ proposed a four-layer cooperative control strategy based on hierarchical structure; [ proposed a hierarchical control framework based on hybrid model. In addition, Yang converted a nonholonomic system to a chain one and designed a controller to implement a leader-follower formation for multiple AUVs in [. The formation control for multiple autonomous underwater vehicles is rather different than the control methods for other vehicles, because the formation control for AUVs is of its characteristics, such as the large-scale distribution in space. The finite-time consensus controller designing based on finite-time control and consensus problem has important theoretical and practical significance. The decentralized controller methods for the autonomous underwater vehicle are applied more and more, but they ignore the coupling relationship between them. Another method is that an AUV is modeling as an agent, but this method ignores attitude characteristics of AUVs (pitch, roll and yaw). In this paper, we consider the cooperative control problem in three dimensional spaces. Finite-time formation for Autonomous Underwater Vehicles (AUVs) with constraints on communication range is investigated. We proposed a two-layer finite-time consensus control law, to avoid leading to collapse on formation because of failure leader, all AUVs are arrayed in the same level and each AUV can obtain global formation information. Finally, the simulation results show the effectiveness of the control strategy.

APA, Harvard, Vancouver, ISO, and other styles

32

Liu, Dacai, Zhi Liu, C. L. Philip Chen, and Yun Zhang. "Finite-time distributed cooperative control for heterogeneous nonlinear multi-agent systems with unknown input constraints." Neurocomputing 415 (November 2020): 123–34. http://dx.doi.org/10.1016/j.neucom.2020.06.089.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Xue, Kai, and Tingyi Wu. "Distributed Consensus of USVs under Heterogeneous UAV-USV Multi-Agent Systems Cooperative Control Scheme." Journal of Marine Science and Engineering 9, no. 11 (November 22, 2021): 1314. http://dx.doi.org/10.3390/jmse9111314.

Full text

Abstract:

This paper addresses the formation motion control of heterogeneous multi-agent unmanned systems via a distributed consensus approach. The considered heterogeneous system consisted of unmanned aerial vehicles (UAVs) and unmanned surface vehicles (USVs). A leader-following consensus scheme and APF method are used to construct UAV-USVs Formation task requirements. A fuzzy-based sliding mode control approach is proposed to ensure the formation assembles in a finite time, and the finite-time stability is proved by the Lyapunov stability theorem. To highlight the cooperation within the heterogeneous systems, such as UAV and USV, a novel vision-based path re-planning approach is proposed. Simulation results confirm the efficiency of the proposed approach.

APA, Harvard, Vancouver, ISO, and other styles

34

Pilloni, Alessandro, Alessandro Pisano, and Elio Usai. "Robust Finite-Time Frequency and Voltage Restoration of Inverter-Based Microgrids via Sliding-Mode Cooperative Control." IEEE Transactions on Industrial Electronics 65, no. 1 (January 2018): 907–17. http://dx.doi.org/10.1109/tie.2017.2726970.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Hwang, Chih-Lyang, Hailay Berihu Abebe, Bor-Sen Chen, and Fan Wu. "Fuzzy Adaptive Finite-Time Cooperative Control With Input Saturation for Nonlinear Multiagent Systems and its Application." IEEE Access 8 (2020): 105507–20. http://dx.doi.org/10.1109/access.2020.2999971.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Xia, Guoqing, Chuang Sun, Bo Zhao, and Jingjing Xue. "Cooperative Control of Multiple Dynamic Positioning Vessels with Input Saturation Based on Finite-time Disturbance Observer." International Journal of Control, Automation and Systems 17, no. 2 (January 18, 2019): 370–79. http://dx.doi.org/10.1007/s12555-018-0383-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Yan, Pengpeng, Yonghua Fan, Yuanlin Chen, and Mingang Wang. "Distributed Encirclement Points Deployment of Autonomous Mobile Multi-Agents Based on Finite-Time Consensus." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 38, no. 6 (December 2020): 1139–45. http://dx.doi.org/10.1051/jnwpu/20203861139.

Full text

Abstract:

In the many-to-one pursuit-evasion game, autonomous mobile multi-agents can effectively improve the probability of successful hunting by achieving the cooperative encirclement to the target from multiple directions. To solve the encirclement points deployment, a distributed control protocol is proposed based on finite-time consensus. Firstly, the encirclement points deployment is formulated as the coverage control problem on a circle. The presented distributed control protocol can realize uniform coverage on the circle, i.e., optimal encirclement around the target. Secondly, by introducing the strategy of time-varying feedback gain, the convergence rate of closed-loop system turns into finite-time consensus from asymptotical consensus, such that the efficiency of the deployment is improved greatly. Finally, numerical simulations are carried out to verify the effectiveness of the presented distributed control protocols.

APA, Harvard, Vancouver, ISO, and other styles

38

Ma, Junjie, Xudong Wang, Siyan Zhang, and Hanying Gao. "Distributed Finite-Time Secondary Frequency and Voltage Restoration Control Scheme of an Islanded AC Microgrid." Energies 14, no. 19 (October 1, 2021): 6266. http://dx.doi.org/10.3390/en14196266.

Full text

Abstract:

To solve the problems of frequency and voltage deviation caused by the droop control while meeting the requirements of rapid response, a distributed finite-time secondary control scheme is presented. Unlike the traditional cooperative controllers, this scheme is fully distributed; each unit only needs to communicate with its immediate neighbors. A control protocol for frequency restoration and active power sharing is proposed to synchronize the frequency of each unit to the reference value, and achieve accurate active power distribution in a finite-time manner as well. The mismatch of the line impedance is considered, and a consensus-based adaptive virtual impedance control is proposed. The associated voltage drop is considered to be the compensator for the voltage regulation. Then, a distributed finite-time protocol for voltage restoration is designed. The finite-time convergence property and the upper bound of convergence times are guaranteed with rigorous Lyapunov proofs. Case studies in MATLAB are carried out, and the results demonstrate the effectiveness, the robustness to load changes, plug-and play capacity, and better convergence performance of the proposed control scheme.

APA, Harvard, Vancouver, ISO, and other styles

39

Fan, Yanyan, Zhenlin Jin, Xiaoyuan Luo, Shaobao Li, and Baosu Guo. "Path-Guided Finite-Time Formation Control of Nonholonomic Mobile Robots Based on an Extended State Observer." Applied Sciences 12, no. 18 (September 16, 2022): 9281. http://dx.doi.org/10.3390/app12189281.

Full text

Abstract:

In this paper, we study the finite-time formation control problem of uncertain nonholonomic mobile robots following a parameterized path. A path-guided formation control scheme based on an extended state observer is proposed. To compensate for unmeasured velocities and disturbances simultaneously, a third-order fast finite-time extended state observer (FFTESO) is proposed. Then, a distributed formation control solution is developed to achieve the kinematic and dynamic system coordination control of the nonholonomic mobile robots. For the kinematic system control, a path-parameter-updating law is developed for a virtual leader, and the desired linear velocity and heading angle are developed for the mobile robots. For the kinetic control, an anti-disturbance control protocol is designed based on the estimated signals. The salient features of the proposed algorithms lie in that the estimations of disturbances and unmeasured velocities are achieved against the system’s nonholonomic constraints, and the path following the control and cooperative control is synthesized together for path-guided formation, which reduces the complexity of the controller design. Finally, simulation studies are conducted to demonstrate the effectiveness of the proposed algorithm.

APA, Harvard, Vancouver, ISO, and other styles

40

Gao, Siyu, and Xin Wang. "Neural-Network-Based Collaborative Control for Continuous Unknown Nonlinear Systems." Discrete Dynamics in Nature and Society 2021 (March 24, 2021): 1–10. http://dx.doi.org/10.1155/2021/5535971.

Full text

Abstract:

This paper proposes an NN-based cooperative control scheme for a type of continuous nonlinear system. The model studied in this paper is designed as an interconnection topology, and the main consideration is the connection mode of the undirected graph. In order to ensure the online sharing of learning knowledge, this paper proposes a novel weight update scheme. In the proposed update scheme, the weights of the neural network are discrete, and these discrete weights can gradually approach the optimal value through cooperative learning, thereby realizing the control of the unknown nonlinear system. Through the trained neural network, it is proved if the interconnection topology is undirected and connected, the state of the unknown nonlinear system can converge to the target trajectory after a finite time, and the error of the system can converge to a small neighbourhood around the origin. It is also guaranteed that all closed-loop signals in the system are bounded. A simulation example is provided to more intuitively prove the effectiveness of the proposed distributed cooperative learning control scheme at the end of the article.

APA, Harvard, Vancouver, ISO, and other styles

41

Ayatollahi, Mehrasa, Vahid Johari Majd, and Mohammad Mehdi Nasrabadi. "An Optimal Cooperative Control Design for State Consensus of Periodic Multiagent Systems." Mathematical Problems in Engineering 2018 (August 6, 2018): 1–8. http://dx.doi.org/10.1155/2018/3183278.

Full text

Abstract:

The problem of cooperative optimal control of multiagent systems with linear periodic continuous-time dynamics is considered. The state consensus problem is formulated as an optimal control problem in which the consensus requirement is reflected in the cost. The cost optimization of each subsystem is considered over finite horizon while the states of the agents converge to a common value, with a control signal that depends on the interactions of the neighboring subsystems. The proposed control law consists of a local and regional terms to capture local measurements and measurements due to interactions with the neighboring agents, respectively. These two terms are obtained by solving a Hamilton-Jacobi-Bellman partial differential equation. A numerical example is presented to demonstrate the effectiveness of the proposed method.

APA, Harvard, Vancouver, ISO, and other styles

42

Zhang, Haoqiang, Shengjing Tang, and Jie Guo. "Cooperative near-space interceptor mid-course guidance law with terminal handover constraints." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 6 (May 3, 2018): 1960–76. http://dx.doi.org/10.1177/0954410018769182.

Full text

Abstract:

A cooperative problem in mid-course guidance phase is addressed in this paper. For providing suitable initial conditions of successful terminal salvo attack, a novel finite-time cooperative mid-course guidance law with terminal handover constraints is proposed. Firstly, a three-dimensional guidance model of mid-course is decoupled in a planar line-of-sight frame as a two-point boundary value problem. The terminal handover constraints which can guarantee an ideal zero effort terminal engagement are proposed and analyzed. Secondly, the design of the cooperative mid-course guidance law is separated into two stages. The acceleration commands along the line-of-sight direction are developed based on the finite-time average-consensus protocol and super-twisting algorithm in the first stage. In the second stage, the model predictive static programming method is adopted to solve the two-point boundary value problem in line-of-sight frame with a known final time from first stage. Furthermore, sliding mode control theory is used in combination with model predictive static programming method to satisfy terminal handover constraints with bounded perturbation. Finally, numerical simulations of two four-interceptor cooperative scenario are carried out to verify the validity of the proposed cooperative guidance law. The simulation results reflect that all the four interceptors can reach their own predictive interception points with specific approach angles simultaneously.

APA, Harvard, Vancouver, ISO, and other styles

43

Zuo, Lei, Rongxin Cui, and Weisheng Yan. "Terminal sliding mode-based cooperative tracking control for non-linear dynamic systems." Transactions of the Institute of Measurement and Control 39, no. 7 (February 29, 2016): 1081–87. http://dx.doi.org/10.1177/0142331216629201.

Full text

Abstract:

This paper investigates cooperative tracking problems for multiple non-linear dynamic systems. The desired trajectory is only available to a portion of the agents. Treating the desired trajectory as a virtual agent, a terminal sliding mode (TSM)-based distributed control algorithm is designed only using the neighbours’ information. A decentralized observer is provided firstly to estimate the unknown external disturbances. Then, the Gaussian functions are introduced to approximate the second-order derivative of the inaccessible states. On this basis, we further develop a TSM-based cooperative tracking control algorithm for the non-linear dynamic systems such that the tracking errors of each agent converge to an adjustable neighbourhood of the origin in finite time. Finally, a simulation example is presented to illustrate the feasibility and effectiveness of the proposed approaches.

APA, Harvard, Vancouver, ISO, and other styles

44

Liu, Xiang, and Xiaogeng Liang. "Research on Integrated Guidance and Control of Distributed Cooperation of Multi-Interceptor with State Coupling." Journal of Control Science and Engineering 2018 (August 1, 2018): 1–15. http://dx.doi.org/10.1155/2018/3193405.

Full text

Abstract:

With the aim of achieving cooperative target interception by using multi-interceptor, a distributed cooperative control algorithm of the multi-interceptor with state coupling is proposed based on the IGC (integrated guidance and control) method. Considering the coupling relationship between the pitch and ya w channels, a state coupling “leader” IGC model is established, an FTDO (finite-time disturbance observer) is designed for estimating the unknown interference of the model, and the “leader” controller is designed according to the adaptive dynamic surface sliding-mode control law. Secondly, the cooperative control strategy of the multi-interceptor is designed with the “leader-follower” distributed network mode to obtain the speed in the three directions of the interceptor in air and transform them to the general flight speed, trajectory inclination angle, and trajectory deflection instruction by using the transformational relation of kinematics. Finally, the “follower” controller is designed with the FTDO and dynamic surface sliding-mode control. The designed multi-interceptor distributed cooperative IGC algorithm with state coupling has good stability according to the simulation results of two different communication topologies.

APA, Harvard, Vancouver, ISO, and other styles

45

Huang, Cheng, Tianzeng Cao, and Jinglin Huang. "Autonomous Control of the Large-Angle Spacecraft Maneuvers in a Non-Cooperative Mission." Sensors 22, no. 22 (November 8, 2022): 8586. http://dx.doi.org/10.3390/s22228586.

Full text

Abstract:

Aiming at the large-angle maneuver control problem of tracking spacecraft attitude in non-cooperative target rendezvous and proximity tasks, under the condition that the target spacecraft attitude information is unknown and the actuator output has physical limitations, a limited-time autonomous control method is proposed. First, an end-to-end pose estimation network is designed based on adaptive dual-channel feature extraction and dual attention. The information around the target is obtained through the adaptive dual-channel feature extraction module. The addition of spatial attention and channel attention allows the network to learn the target’s characteristics more accurately. Secondly, based on the improved adaptive update law, a finite-time saturation controller is designed using the hyperbolic tangent function and the auxiliary system. The hyperbolic tangent function can strictly ensure that the control torque of the control system is bounded. Finally, the simulation results show that the proposed autonomous control method can accurately estimate the attitude of the non-cooperative target spacecraft and can maneuver to the target attitude within 20 s under the condition that the actuator’s output is physically limited.

APA, Harvard, Vancouver, ISO, and other styles

46

Wu, Shu-Nan, Wen-Ya Zhou, Shu-Jun Tan, and Guo-Qiang Wu. "RobustH∞Control for Spacecraft Rendezvous with a Noncooperative Target." Scientific World Journal 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/579703.

Full text

Abstract:

The robustH∞control for spacecraft rendezvous with a noncooperative target is addressed in this paper. The relative motion of chaser and noncooperative target is firstly modeled as the uncertain system, which contains uncertain orbit parameter and mass. Then theH∞performance and finite time performance are proposed, and a robustH∞controller is developed to drive the chaser to rendezvous with the non-cooperative target in the presence of control input saturation, measurement error, and thrust error. The linear matrix inequality technology is used to derive the sufficient condition of the proposed controller. An illustrative example is finally provided to demonstrate the effectiveness of the controller.

APA, Harvard, Vancouver, ISO, and other styles

47

Kamal, Shyam, Ankit Sachan, D. Kranthi Kumar, and Devender Singh. "Robust finite time cooperative control of second order agents:A Multi-input Multi-output higher order super-twisting based approach." ISA Transactions 86 (March 2019): 1–8. http://dx.doi.org/10.1016/j.isatra.2018.10.041.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Li, Xuehui, Zhibin Zhu, and Shenmin Song. "Non-cooperative autonomous rendezvous and docking using artificial potentials and sliding mode control." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 4 (January 2, 2018): 1171–84. http://dx.doi.org/10.1177/0954410017748988.

Full text

Abstract:

In this paper, the problem of autonomous rendezvous and docking with a non-cooperative target spacecraft is studied. A coupled translational and rotational dynamics of the spacecraft is used, where the rotation matrix is used to represent the attitude of spacecraft to overcome the drawbacks related to the unwinding. An asymptotically stable autonomous rendezvous and docking collision-free controller is proposed based on a novel designed sliding surface. Then, a new nonsingular terminal sliding surface is given, based on which the developed autonomous rendezvous and docking collision-free controller can make the tracking errors converge into a small bounded area near the origin in a finite time. Using artificial potential function and virtual obstacles model established based on cissoid, both controllers ensure the chaser spacecraft strictly remains in the safety area to avoid the collision with the target spacecraft. The effectiveness of the proposed controllers is demonstrated by numerical simulation.

APA, Harvard, Vancouver, ISO, and other styles

49

Kabanov, Aleksey, Vadim Kramar, Ivan Lipko, and Kirill Dementiev. "Cooperative Control of Underwater Vehicle–Manipulator Systems Based on the SDC Method." Sensors 22, no. 13 (July 4, 2022): 5038. http://dx.doi.org/10.3390/s22135038.

Full text

Abstract:

The paper considers the problem of cooperative control synthesis for a complex of N underwater vehicle–manipulator systems (UVMS) to perform the work of moving a cargo along a given trajectory. Here, we used the approach based on the representation of nonlinear dynamics models in the form of state space with state-dependent coefficients (SDC-form). That allowed us to apply methods of suboptimal control with feedback based on the state-dependent differential Riccati equation (SDDRE) solution at a finite time interval, providing the change in control intensity with the transient effect of the system matrices in SDC form. The paper reveals two approaches to system implementation: a general controller for the whole system and a set of N independent subcontrollers for UVMSs. The results of both approaches are similar; however, for the systems with a small number of manipulators, the common structure is recommended, and for the systems with a large number of manipulators, the approach with independent subcontrollers may be more acceptable. The proposed method of cooperative control was tested on the task of cooperative control for two UVMSs with six-link manipulators Orion 7R. The simulation results are presented in the article and show the effectiveness of the proposed method.

APA, Harvard, Vancouver, ISO, and other styles

50

Lee, Daniel, Han-Lim Choi, and Jong-Han Kim. "Optimal Cooperative Guidance Laws for Two UAVs Under Sensor Information Deficiency Constraints." Sensors 20, no. 17 (August 25, 2020): 4790. http://dx.doi.org/10.3390/s20174790.

Full text

Abstract:

This paper presents closed-form optimal cooperative guidance laws for two UAVs under information constraints that achieve the required relative approach angle. Two UAVs cooperate to optimize a common cost function under a coupled constraint on terminal velocity vectors and the information constraint which defines the sensor information availability. To handle the information constraint, a general two-player partially nested decentralized optimal control problem is considered in the continuous finite-horizon time domain. It is shown that under the state-separation principle the optimal solution of the decentralized control problem can be obtained by solving two centralized subproblems which cover the prediction problem for the information-deficient player and the prediction error minimization problem for the player with full information. Based on the solution of the decentralized optimal control problem, the explicit closed-form cooperative guidance laws that can be efficiently implemented on conventional guidance computers are derived. The performance of the proposed guidance laws is investigated on both centralized and decentralized cooperative scenarios with nonlinear engagement kinematics of networked two-UAV systems.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Finite-time cooperative control'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles