this article focuses on the iterative learningcontrol problem of a class of linear parabolic distributed parameter systems, which has the characteristic that the boundaries of the spatial domain change continuously w...
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ISBN:
(纸本)9781728159225
this article focuses on the iterative learningcontrol problem of a class of linear parabolic distributed parameter systems, which has the characteristic that the boundaries of the spatial domain change continuously with time. then, the open-loop P-type iterative learning method is used to study the system output tracking problem. through rigorous theoretical analysis, some methods such as the contraction mapping approach and Bellman-Gronwall inequality are used to prove the convergence of the tracking error. Finally, the effectiveness of the algorithm is verified by numerical simulation.
Withthe development of science and technology and the expansion of intelligent manufacturing technology, there are more and more automatic production lines in China, but the overall structure of the automatic product...
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ISBN:
(纸本)9781728159225
Withthe development of science and technology and the expansion of intelligent manufacturing technology, there are more and more automatic production lines in China, but the overall structure of the automatic production line is complex and the R & D investment cycle is long, resulting in low production efficiency. From the point of view of automatic production line structure and data virtual simulation, this paper studies the simulation control debugging system of automatic production line driven by PLC data. According to PLC data, the developer can carry out virtual commissioning of automatic production line and verify the timing of production line.
Fault diagnosis is an important branch of modern control system and plays an important role in industrial production. Researchers keep pursuing more convenient and practical methods for fault diagnosis. As data collec...
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ISBN:
(纸本)9781728159225
Fault diagnosis is an important branch of modern control system and plays an important role in industrial production. Researchers keep pursuing more convenient and practical methods for fault diagnosis. As data collection becoming more convenient, data-driven methods develops rapidly for their excellent performance, especially the deep learning methods have been a popularity way to fault diagnosis. this paper tries to use two data-driven methods (ResNet-50 and SE-ResNet-50) on fault diagnosis without transfer learning. More uniquely, training data and testing data are collected under different conditions. SE-ResNet-50 achieves the highest accuracy 99.1%, which is better than ResNet-50 obviously. this experiment shows that SE-ResNet-50 achieves good performance without large training samples in fault diagnosis.
作者:
Li, JunkangFang, YongGe, YuWu, YuzhouShanghai Univ
Shanghai Inst Adv Commun & Data Sci Key Lab Specialty Fiber Opt & Opt Access Networks Joint Int Res Lab Specialty Fiber Opt & Adv Commu Shanghai 200444 Peoples R China
As the condition of iterative learningcontrol, it is usually necessary to estimate the parameters of the system model to determine whether the system satisfies the global Lipschitz condition and estimate the upper an...
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ISBN:
(纸本)9781728159225
As the condition of iterative learningcontrol, it is usually necessary to estimate the parameters of the system model to determine whether the system satisfies the global Lipschitz condition and estimate the upper and lower bounds of the rate of change of the system. However, for systems with unknown dynamics, the data-driven iterative learningcontrol based on system input and output cannot be realized fully. In this paper, using the nonlinear mapping and feature extraction ability of deep learning, only input / output data is used to determine whether the uncertain system satisfies the global Lipschitz condition and estimate the upper and lower bounds of the system's rate of change, so as to realize the iterative learningcontrol of the system. the simulation results verify the validity of estimating whether the system satisfies the ILC condition only based on the input / output data of the system.
Modeling and control design of complex chemical processes are challenge tasks because of their multi-variable, time-delay and non-linear features. On the other hand, the plant dynamics are hard to characterize precise...
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ISBN:
(纸本)9781728159225
Modeling and control design of complex chemical processes are challenge tasks because of their multi-variable, time-delay and non-linear features. On the other hand, the plant dynamics are hard to characterize precisely on line when facing uncertain disturbance. In the light of this, this paper presents a data-driven backstepping control scheme for the nonlinear chemical process. Compared with other regular chemical process control schemes, the proposed scheme is independent of specific mathematical models, and free of decoupling operation, linearization, or off-line recognition and modeling. By constructing Lyapunov function and feedback control rate based on real-time data, the integral stability is guaranteed. Williams-Otto reactor example is provided to demonstrate the effectiveness and applicability of the scheme.
In this paper, an adaptive iterative learningcontrol scheme is propsed for a class of nonparametric systems with hysteresis input described by Bouc-Wen model. First, based on analyzing the property of Bouc-Wen model,...
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ISBN:
(纸本)9781728159225
In this paper, an adaptive iterative learningcontrol scheme is propsed for a class of nonparametric systems with hysteresis input described by Bouc-Wen model. First, based on analyzing the property of Bouc-Wen model, the adaptive learningcontroller is designed by using Lyapunov synthesis. In the control design, the nonparametric uncertainty and hysteresis nonlinearity is compensated by robust strategy and iterative learning strategy together, according to the property of Bouc-Wen model. As the iteration increases, the system state can track its reference signal accurately over the whole period. Numerical results demonstrate the effectiveness of the adaptive learningcontrol scheme.
In this paper, a data-driven high-order model-free adaptive iterative learningcontrol (HMFAILC) is developed by a wheeled mobile robots (WMR) for trajectory tracking in the repetitive systems. the design and analysis...
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ISBN:
(纸本)9781728159225
In this paper, a data-driven high-order model-free adaptive iterative learningcontrol (HMFAILC) is developed by a wheeled mobile robots (WMR) for trajectory tracking in the repetitive systems. the design and analysis of the controller only uses the I/O of the system and in the absence of any explicit model information. control performance is improved by using higher-order learningcontrol methods to obtain more control information in the iterative process. the control performance of the control scheme is proved by mathematical analysis and simulation.
this paper focuses on the identification problem for finite impulse response systemsthrough using the hierarchical identification principle. Based on the hierarchical identification principle, the hierarchical based ...
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ISBN:
(纸本)9781728159225
this paper focuses on the identification problem for finite impulse response systemsthrough using the hierarchical identification principle. Based on the hierarchical identification principle, the hierarchical based least squares iterative algorithm is proposed to estimate the parameters of the two-input single-output Hammerstein finite impulse response systems. Finally, a simulation example is given to test the effectiveness of the proposed algorithm.
In this paper, leader-follower consensus problems of a kind of discrete-time heterogeneous multi-agent systems(MASs) with independent topologies are studied by using iterative learningcontrol(ILC) in a repeatable con...
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ISBN:
(纸本)9781728159225
In this paper, leader-follower consensus problems of a kind of discrete-time heterogeneous multi-agent systems(MASs) with independent topologies are studied by using iterative learningcontrol(ILC) in a repeatable control environment. the heterogeneous multi-agent systems are composed of second-order and first-order dynamic systems, and independent topology refers to the topological structure of velocity and position is different. An iterative learningcontrol algorithm is proposed to solve the exact consensus of discrete-time heterogeneous multi-agent systems with independent topology. A necessary and sufficient condition of the consensus is also given for the MASs. Finally, the simulation example proves the effectiveness of the iterative learningcontrol algorithm.
In this note, the consensus control problem has been researched for a type of leader-follower multi-agent systems by using the event-triggered strategy. In order to eliminate continuous information transmission betwee...
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ISBN:
(纸本)9781728159225
In this note, the consensus control problem has been researched for a type of leader-follower multi-agent systems by using the event-triggered strategy. In order to eliminate continuous information transmission between the neighboring agents or nodes, the consensus controller is constructed by using the estimated state information of neighboring agents instead of their real states. the communication instants are determined by the developed event-triggered strategy to minimize the amount of communication between neighboring agents. A type of error convergence analysis based on Lyapunov function has been provided to prove the bounded convergence of the proposed consensus scheme. Finally, a simulation case is given to verify the effectiveness of the given event-based consensus control strategy.
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