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IEEE International Conference on control Science and systems Engineering (CCSSE)

作者： Jinpeng Huang Jun Hu Jiaxing Li Zhipeng Cao Department of Mathematics Harbin University of Science and Technology Harbin China Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and Technology Harbin China

In this paper, an adaptive event-triggered filtering problem is discussed for power systems subject to multiple cyberattacks and hybrid measurements. A model describing the multiple cyber-attacks is constructed, which includes the denial of service attack and replay attack. In order to decrease the data transmission frequency, according to the practical requirements, an adaptive event-triggered strategy is adopted to schedule the node transmission. To be specific, the upper bound of the estimation error covariance is firstly obtained by solving the difference equations and employing the time-stamp method. Next, the desired estimator gain matrix is designed by minimizing the corresponding upper bound. Finally, an illustrative example is used to demonstrate the effectiveness of the proposed estimation algorithm.

关键词： Estimation error Schedules Upper bound Power measurement Adaptive systems Filtering Stochastic processes

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A Dynamic Event-Triggered Method to Distributed Filtering with Switching Nonlinearities and Redundant Channels

A Dynamic Event-Triggered Method to Distributed Filtering wi...

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第三十九届中国控制会议

作者： Zehao Li Jun Hu Dongyan Chen Department of Mathematics Harbin University of Science and Technology Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and Technology School of Engineering University of South Wales

This paper is concerned with the dynamic event-triggered distributed filtering problem for a class of time-varying stochastic systems with switching nonlinearities and redundant channels. A random variable that obeys Bernoulli distribution is used to characterize the switching nonlinearities, and moreover, a set of random variables are used to described redundant channels, which are introduced to increase the probability of successful deliver of the data packets. A dynamic event-triggered scheme is introduced to further reduce the number of excessive executions of the signal transmissions. The aim of this paper is to design a locally optimal time-varying filter such that, for switching nonlinearities and redundant channels, an upper bound on the filtering error covariance is derived and such an upper bound is minimized by properly designing the filter gain based on the solution of a Riccati-like difference equation. In addition, the performance analysis of the proposed filtering algorithm is conducted and a sufficient condition is given to verify the boundedness of the filtering error. Finally, an illustrative example is given to demonstrate the effectiveness of the proposed filter design scheme.

关键词： Sensor networks Dynamic event-triggered protocol Switching nonlinearities Redundant channels Performance analysis

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State estimation for uncertain discrete-time nonlinear systems via the coding-decoding scheme

State estimation for uncertain discrete-time nonlinear syste...

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第32届中国控制与决策会议

作者： Shenyang Xu Jun Hu Dongyan Chen Zhihui Wu School of Science Harbin University of Science and Technology Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and Technology School of Engineering University of South Wales

The state estimation problem is investigated for a class of discrete-time networked systems with uncertainty and nonlinearity via a coding-decoding communication *** signal is transmitted through digital channels,which means that only the sequence of finite coded data is sent to the *** be specific,the observation must be encoded to certain codewords by designing a coder,and then the received codewords are decoded by the relevant *** purpose of the addressed problem is to design a proper coding-decoding procedure such that the estimator error is asymptotically stable across the limited capacity of the communication *** applying a modified uniform quantization approach,sufficient detection conditions involving the size of the coding alphabet and the coding period are ***,the estimator parameter is explicitly determined in terms of the solutions to a set of matrix ***,a simulation example is provided to demonstrate the effectiveness of the obtained results.

关键词： Discrete-time Nonlinear systems Coding-decoding Scheme State Estimation Parameter Uncertainty

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Prediction-based approach to consensus of discrete-time multi-agent systems with exogenous disturbances and delay

Prediction-based approach to consensus of discrete-time mult...

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第32届中国控制与决策会议

作者： Han Wu Jun Hu Dongyan Chen School of Science Harbin University of Science and Technology Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and Technology School of Engineering University of South Wales

This paper is concerned with consensus problem for discrete-time multi-agent systems（DTMASs） with exogenous disturbances and communication delay,where the agents’ states are not measurable.A predictive-based control protocol is introduced to actively compensate the time delay during the information exchange through the network,and an exogenous disturbance observer as well as a distributed protocol via the predictions of agents’ states are designed at current *** addressed DTMASs with exogenous disturbances and a constant communication delay,some sufficient conditions are ***,the simulations are presented to demonstrate the effectiveness of the proposed control method.

关键词： Multi-agent systems Networked Predictive control External Disturbance Consensus

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Quantized control for Highly Nonlinear Stochastic systems with Multiple Delays under DoS Attacks

Quantized Control for Highly Nonlinear Stochastic Systems wi...

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第42届中国控制会议

作者： Hairui Zhao Dongyan Chen Jun Hu School of Science Harbin University of Science and Technology Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and Technology School of Automation Harbin University of Science and Technology

In this paper,the quantized control problem is discussed for a class of highly nonlinear stochastic systems with multiple delays under the DoS *** coefficients are allowed to be highly nonlinear,and the control input is subject to the quantization effects and the DoS *** aim is to deal with the stabilization problem for unstable highly nonlinear stochastic systems with multiple *** p-th moment exponential stability and almost surely exponential stability are discussed in light of the Lyapunov ***,an illustrative example is given to verify the validity of the theoretical results.

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Outlier-Resistant Distributed Filtering for Multi-Rate Nonlinear systems under Amplify-and-Forward Relays

Outlier-Resistant Distributed Filtering for Multi-Rate Nonli...

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第42届中国控制会议

作者： Shuting Fan Jun Hu Chaoqing Jia Hairui Zhao Department of Applied Mathematics Harbin University of Science and Technology Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and Technology School of Automation Harbin University of Science and Technology

In this paper, the outlier-resistant distributed filtering problem based on amplify-and-forward relays is studied for discrete time-varying nonlinear multi-rate systems with multiple measurement delays over sensor networks, where the augmenting method is utilized to transform the multi-rate system into a single rate system. An amplify-and-forward(AF) relay is set between the sensor and the filter to extend the transmission distance of the signal and ensure the communication transmission *** outlier-resistant distributed filter is constructed by introducing a saturation function to limit the innovations, then the upper bound on the filtering error covariance is obtained and the filter gain is designed to minimize such obtained upper bound. Finally,a numerical example is used to show the effectiveness of the outlier-resistant distributed filtering algorithm based on AF relays.

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An Event-Triggered Fault Detection Method for State-Saturated systems with Time-Delay and Nonlinearities

An Event-Triggered Fault Detection Method for State-Saturate...

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第40届中国控制会议

作者： Weilu Chen Jun Hu Dongyan Chen Xiaoyang Yu Zhihui Wu School of Measurement and Communication Harbin University of Science and Technology Department of Mathematics Harbin University of Science and Technology Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and Technology

The fault detection problem is addressed in this paper for a class of state-saturated systems with time-delay and nonlinearities under communication *** particular,the phenomenon of state saturation is introduced to characterize the physical limitations of the ***,the event-triggered communication strategy is adopted to achieve the purpose of saving network resources and preventing data ***,an event-based fault detection filter is *** selecting the appropriate Lyapunov functional,several sufficient conditions are obtained such that the addressed augmented system is globally asymptotically stable with a satisfactory H performance ***,the filter parameters are gained through solving certain matrix ***,the effectiveness of the proposed fault detection approach is demonstrated by a numerical example.

关键词： State-saturated systems Fault detection Event-triggered mechanism Time-delay

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Distributed Resilient State Estimation for Time-Varying Fractional-Order Discrete Complex Networks with Encoding-Decoding Scheme

Distributed Resilient State Estimation for Time-Varying Frac...

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第42届中国控制会议

作者： Yu Chen Jun Hu Jiaxing Li Aozhan Zhou Hui Yu Department of Applied Mathematics Harbin University of Science and Technology Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and Technology School of Automation Harbin University of Science and Technology

In this paper,the distributed state estimation method with resilient attenuation feature is proposed for time-varying fractional-order complex networks under encoding-decoding *** encoding-decoding-induced dynamic errors for distinct nodes are characterized by the truncated Gaussian *** order to compensate the effects induced by encodingdecoding scheme,the variances of encoding-decoding-induced dynamic errors are considered in process of designing the resilient distributed estimation *** particular,the upper bounds of updated estimation error covariances are derived ***,the upper bounds are minimized by constructing the gain matrices at each sampling ***,a sufficient condition is provided to guarantee the boundedness of estimation error dynamics in the mean-square ***,the validity of distributed resilient state estimation scheme is demonstrated by a simulation example.

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Recursive Filtering for Time-Varying Nonlinear Delayed systems with Stochastic Parameter Matrices and Censored Measurements

Recursive Filtering for Time-Varying Nonlinear Delayed Syste...

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第42届中国控制会议

作者： Shuo Yang Jun Hu Peixia Gao Ruijie Dong Zhihui Wu Department of Applied Mathematics Harbin University of Science and Technology Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and Technology School of Automation Harbin University of Science and Technology

This paper discusses the design problem of recursive filtering method for time-varying nonlinear delayed systems(NDSs) with stochastic parameter matrices(SPMs) and censored *** particular,the Tobit Type Ⅰ model provides a description of the censored *** main objective of this paper is to construct a recursive filter for NDSs with both SPMs and censored *** upper bound of the filtering error covariance is first calculated via mathematical induction,and the upper bound is then minimized by choosing proper filter ***,a sufficient condition is provided to guarantee that the filtering error is uniformly bounded in the mean-square ***,the viability and applicability of the proposed filterin g method are demonstrated using a numerical simulation.

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Adaptive-triggered H∞ sliding-mode optimal control for nonlinear input-limited systems

SSRN

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SSRN 2024年

作者： Zhang, Hongxu Wang, Honggui Department of Applied Mathematics Harbin University of Science and Technology Harbin150080 China Heilongjiang Provincial Key Laboratory of Optimization Control and Intelligent Analysis for Complex Systems Harbin University of Science and Technology Harbin150080 China

This paper concentrates on the H∞ sliding mode optimal control (SMOC) problem for nonlinear systems with mismatched inter ference and constrained input. Firstly, an adaptive-triggered strategy with respect to discontinuous control part is employed which can suppress input interference and the separated matched disturbances. Also, the system trajectories are guaranteed to converge to the sliding manifold. Moreover, the adaptive-triggered strategy is optimized to self-triggered strategy with aim to avoid the real-time measurement of triggered conditions, and the minimum time interval is obtained to keep away from Zeno phenomenon. Subsequently, the optimal H∞ control problem of sliding motion turns into a two-person ZS game issue. To derive the solutions of event-trigger HJI equation, an adaptive dynamic programming (ADP) algorithm with critic-only structure is implemented to obtain the optimal control online. Furthermore, by utilizing the Lyapunov technique, the uniformly ultimately bounded (UUB) conditions about system state and the weight estimation error are obtained. At last, simulation outcomes are analyzed to validate the effectiveness of the control strategy. © 2024, The Authors. All rights reserved.

关键词： Sliding mode control

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