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model reference Adaptive Fault-Tolerant Control for a Class of Uncertain Linear Time-Delayed Systems with Actuator Failures

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Model Reference Adaptive Fault-Tolerant Control for a Class ...

Synchronization of Digital Chaos in Secure Communication Systems

第30届中国控制与决策会议

作者： Libing Wu Daqing Zhang Liangdong Guo Shengjuan Huang School of Sciences University of Science and Technology Liaoning

In this paper,the model reference adaptive fault-tolerant control（AFTC） scheme is developed for a class of uncertain linear systems with multiple time delays and actuator *** on the model reference matching condition,a novel variable gain fault-tolerant controller with the corresponding adaptive parameter updated laws is designed to effectively compensate for the actuator faults and time-delayed *** using the Lyapunov stability theory,it is proved that all the closed-loop signals are uniformly bounded,and the state tracking error can asymptotically converge to *** results are provided to verify the efficiency of the proposed method.

关键词： Adaptive control fault-tolerant control model reference time delays asymptotically stable

来源： cnki会议评论

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Journal of University of Science and Technology Beijing 2001年第4期8卷 299-305页

作者： Geng Zhao, Deling Zheng, ShaojunHuang 1)College of Electric Science and Technology Beijing. Beijing 100070, China 2)Information Engineering School, University of Science and Technology Beijing. Beijing 100083, China College of Electric Science and Technology Beijing Beijing 100070 China Information Engineering School University of Science and Technology Beijing Beijing 100083 China

The theories of synchronization based on secure communications using digital chaos are presented. A new synchronous method-cycles-interval Pulse drive is developed and realized. Experimental results show it is available, and in order to reduce synchronous noise, a method using model references solves the ratio of signal power to noise power, so the secure communication system can be realized.

关键词： digital chaotic synchronization cycles-interval pulses drive synchronous noise model reference

Decentralized adaptive iterative learning control for interconnected systems with uncertainties

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控制理论与应用（英文版） 2012年第4期10卷 490-496页

作者： Lili SUN Tiejun WU Department of Control Science and Engineering Zhejiang University

In many applications, the system dynamics allows the decomposition into lower dimensional subsystems with interconnections among them. This decomposition is motivated by the ease and flexibility of the controller design for each subsystem. In this paper, a decentralized model reference adaptive iterative learning control scheme is developed for interconnected systems with model uncertainties. The interconnections in the dynamic equations of each subsystem are considered with unknown boundaries. The proposed controller of each subsystem depends only on local state variables without any information exchange with other subsystems. The adaptive parameters are updated along iteration axis to com- pensate the interconnections among subsystems. It is shown that by using the proposed decentralized controller, the states of the subsystems can track the desired reference model states iteratively. Simulation results demonstrate that, utilizing the proposed adaptive controller, the tracking error for each subsystem converges along the iteration axis.

关键词： Decentralized control Interconnected system model reference Adaptive iterative learning control model uncertainties

Research on Variable Structure and Adaptive Control for Strap-on Rocket

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Journal of Harbin Institute of Technology(New Series) 2017年第2期24卷 87-96页

作者： Xi Chen Yuxi Liu Yijun Wang Aerospace System Engineering Shanghai Shanghai Academy of Spaceflight Technology Shanghai 201109 China

Considering the increase of structural disturbance caused by large thrust misalignment and lack of synchronism after installation of the solid booster on the rock,as well as the increase of external disturbance resulting from the installation of the configuration and tail,while also considering the parameter uncertainties,parameter perturbations,unmodeled dynamics and coupling between channels during modeling,this paper proposes the design method for the adaptive control of sliding mode variable structure,based on the model reference. The paper firstly establishes the attitude dynamics model for the solid strap-on launch vehicle; then proposes the design method for the adaptive control of the sliding mode variable structure based on the model reference,implements the design of attitude control system for the three channels respectively,and uses the Lyapunov function to prove the global asymptotic stability; and finally verifies,through numerical simulation,that the control method proposed in this paper can guarantee the attitude stability of rockets in the primary flight phase.

关键词： launch vehicle model reference variable structure control adaptive control