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2017 IEEE 6th Data Driven Control and Learning Systems Conference (DDCLS’17)

作者： Jiaxi Chen Junmin Li Jinsha Li School of Mathematics and Statistics Xidian University

ISBN: (纸本)9781509054626

This paper investigates the adaptive consensus problem of first-order linearly parameterized multi-agent systems（MASs） with imprecise communication topology structure. T-S fuzzy models are presented to describe leaderfollowers MASs with imprecise communication topology structure, and a fuzzy distributed adaptive iterative learning control protocol is proposed. With the dynamic of leader unknown to any of the agent, the proposed protocol guarantees that the follower agents can track the leader uniformly on [0, T ] for consensus problem. A numerical example is provided to show the effectiveness of the theoretical results.

关键词： AILC consensus algorithm MAS T-S Fuzzy System Imprecise Communication Topology Structure

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Regulating Grid Voltage with PV using Modified consensus

Regulating Grid Voltage with PV using Modified Consensus

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IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)

作者： Saberian, Aminmohammad Ledwich, Gerard Sagha, Hossein Pezeshki, Houman Walker, Geoffrey Queensland Univ Technol Brisbane Qld Australia

ISBN: (纸本)9781538619537

This paper proposes a control design for enhancing current sharing among distributed reactive power generators by improving cooperation among voltage controllers in a Microgrid system. A novel control approach based on sharing information with immediate neighbours as modified by current droop is proposed to regulate the voltage and to control the reactive current injection sharing in a distribution feeder. In this paper, the control algorithm uses localized information as well as from the nearest neighbors. Modified consensus shows low communication requirements, good convergence, and good sharing of the compensation current among the inverters. To evaluate the performance of the algorithm, photovoltaic (PV) systems are included in the examples. The key contribution of this paper is to use the adjacency update with a form of droop control.

关键词： Adjacency consensus algorithm Microgrid Photovoltaic Voltage regulation

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Efficient and fast convergent consensus algorithms for faulty nodes tracking in distributed wireless sensor networks 3

Efficient and fast convergent consensus algorithms for fault...

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3rd International Conference on Electrical Engineering and Information and Communication Technology (ICEEICT)

作者： Hossain, Rajkin Khan, Md. Muhidul Islam Brac Univ Comp Sci & Engn Dept Dhaka Bangladesh

ISBN: (纸本)9781509029068

One of the challenging issues in a distributed computing system is to reach on a decision with the presence of so many faulty nodes. These faulty nodes may update the wrong information, provide misleading results and may be nodes with the depleted battery power. consensus algorithms help to reach on a decision even with the faulty nodes. Every correct node decides some values by a consensus algorithm. If all correct nodes propose the same value then all the nodes decide on that. Every correct nodes must agree on the same value. Faulty nodes do not reach on the decision that correct nodes agreed on. Binary consensus algorithm and average consensus algorithm are the most widely used consensus algorithm in a distributed system. We apply binary consensus and average consensus algorithm in a distributed sensor network with the presence of some faulty nodes. We evaluate these algorithms for better convergence rate and error rate.

关键词： Wireless sensor networks consensus algorithm Distributed systems Convergence Rate Faulty Node Tracking Binary consensus Average consensus

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Finite-Time consensus Analysis under Directed Communication Topologies for Multi-Agent Systems

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IFAC-PapersOnLine 2017年第1期50卷 619-624页

作者： Lu Q. Han Q.-L. Zhong C. Zhang B. Wang J. Liu S. School of Automation Hangzhou Dianzi University Hangzhou 310018 China School of Software and Electrical Engineering Swinburne University of Technology Melbourne VIC 3122 Australia

This paper is concerned with the problem of finite-time consensus under directed communication topologies for multi-agent systems with double-integrator dynamics. First, a relationship between the weights of in-edges and the ones of out-edges for each agent is established and is used in finite-time consensus analysis. Second, based on our previously proposed finite-time consensus controller, the consensus conditions in the framework of directed topologies are derived. Finally, the effectiveness of the finite-time consensus conditions is illustrated by numerical examples. © 2017

关键词： consensus algorithm directed communication topologies double-integrator dynamics Finite-time control

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consensus-based Distributed Coordinated Control for Islanded DC Microgrids

Consensus-based Distributed Coordinated Control for Islanded...

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2017 IEEE Power & Energy Society General Meeting

作者： Guo, Li Guo, Zhen Li, Xialin Wang, Chengshan Hong, Chao Zhang, Ye Tianjin Univ Minist Educ Key Lab Smart Grid Tianjin 300072 Peoples R China CSG Elect Power Res Inst Guangzhou 10663 Guangdong Peoples R China

ISBN: (纸本)9781538622124

In this paper, a distributed coordinated control strategy between the energy storage units (ESUs) and the photovoltaic (PV) units in a dc microgrid has been proposed. Hierarchical control for the multiple ESUs has been adopted. In the primary level, an adaptive droop control is introduced, with the droop gains automatically regulated according to the state of charge (SOC) and the rated power of the ESUs. In the secondary level, distributed cooperative control based global de voltage recovery and current sharing improvement has been presented. As another main contribution, a strategy for the coordinated operation of the ESUs and the PV units is proposed. Based on this strategy, the PV unit can change its control mode smoothly and flexibly to guarantee the stable operation of the de microgrid in case of emergency conditions. The proposed distributed cooperative control strategy for the de microgrid has been verified by a low-voltage islanded de microgrid prototype.

关键词： dc microgrid coordination control consensus algorithm energy storage units distributed generation (DG)

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Finite-Time consensus Analysis under Directed Communication Topologies for Multi-Agent Systems

Finite-Time Consensus Analysis under Directed Communication ...

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20th World Congress of the International-Federation-of-Automatic-Control (IFAC)

作者： Lu, Qiang Han, Qing-Long Zhong, Chaoliang Zhang, Botao Wang, Jian Liu, Shirong Wang, Jianzhong Hangzhou Dianzi Univ Sch Automat Hangzhou 310018 Zhejiang Peoples R China Swinburne Univ Technol Sch Software & Elect Engn Melbourne Vic 3122 Australia

关键词： Finite-time control directed communication topologies consensus algorithm double-integrator dynamics

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consensus-based Voltage and Frequency Restoration Scheme for Inertia-less Islanded Microgrid with Communication Latency

Consensus-based Voltage and Frequency Restoration Scheme for...

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IEEE Region 10 Conference (TENCON)

作者： Shrivastava, Sonam Subudhi, Bidyadhar Das, Susmita Natl Inst Technol Rourkela Dept Elect Engn Rourkela 769008 India

ISBN: (纸本)9781509011346

This paper deals with the voltage and frequency restoration problem for a droop controlled islanded microgrid (MG). A consensus based distributed control is proposed for voltage/frequency restoration of MG which allows all the distributed generator (DG) unit voltage magnitude and operating frequency to converge to the nominal values even with different communication topologies. The proposed control scheme is distributed in nature thereby eliminating the risk of single point failure because no central controller is required. Here, DG units need to communicate with their immediate neighbors only over a distributed communication network. The communication network has inherent transmission delays which can adversely affect the controller performance. Here, the impact of time delay is investigated on the proposed secondary controller of MG system. An islanded MG test system consisting of five DG unit, their respective loads, and transmission lines is simulated in MATLAB/Simulink to verify the performance of the proposed technique.

关键词： consensus algorithm distributed generation droop control distributed secondary control communication latency

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Steady-State Performance Analysis of consensus-based Distributed Detection under Sensing Data Falsification Attack 9

Steady-State Performance Analysis of Consensus-based Distrib...

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9th International Conference on Wireless Communications and Signal Processing (WCSP)

作者： Zheng, Xiaoyan Xie, Lei Chen, Huifang Zhejiang Univ Coll Informat Sci & Elect Engn Hangzhou 310027 Zhejiang Peoples R China Zhejiang Prov Key Lab Informat Proc Commun & Netw Hangzhou 310027 Zhejiang Peoples R China

ISBN: (纸本)9781538620625

Distributed detection without fusion center (FC) allows each sensor node to exchange measurements with its neighbors and to reach agreement on the existence of the target using the consensus algorithm. Comparing with the centralized system, the decentralized system has better performance, in terms of robustness, scalability and invulnerability. Due to the decentralized and open properties, the security of decentralized system is challenging. In this paper, we introduce the system model of consensus-based distributed detection, and analyze the steady-state detection performance in the presence of the sensing data falsification attack. We define a probabilistic inverse attack model to characterize the malicious behavior. Then, we derive the closed-form expressions for the performance of the consensus-based distributed detection under the defined attack model, in terms of the false-alarm probability, the detection probability and the error probability. Moreover, using the deflection coefficient as the objective function, we derive the blind condition of making the detection system invalid. Simulation results illustrate the effects caused by sensing data falsification attack.

关键词： Distribution detection sensing data falsification attack consensus algorithm deflection coefficient

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Distributed consensus-Based Unscented Kalman Filtering with Missing Measurements 36

Distributed Consensus-Based Unscented Kalman Filtering with ...

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第36届中国控制会议

作者： Yichun Niu Li Sheng College of Information and Control Engineering China University of Petroleum(East China)

ISBN: (纸本)9781538629185

In this paper,the state estimation problem is investigated for a class of nonlinear stochastic *** order to deal with the effects of missing measurements,a consensus-based unscented Kalman filtering algorithm is presented on the basis of distributed sensor ***,a sufficient condition is derived to ensure that the estimate error is bounded in mean ***,simulation results show that the proposed filters can estimate the true state of the target plant under undesirable conditions.

关键词： consensus algorithm Unscented Kalman Filters Distributed Sensor Networks Missing Measurements

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consensus-based Approach and Reactive Fuzzy Navigation for Multiple No-holonomic Mobile Robots 6

Consensus-based Approach and Reactive Fuzzy Navigation for M...

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6th International Conference on Systems and Control (ICSC)

作者： Seghour, S. Tadjine, M. Ecole Mil Polytech Lab Control & Command Algiers Algeria Ecole Natl Polytech Proc Control Lab Algiers Algeria

ISBN: (纸本)9781509039609

This paper aims to investigate the formation control of multiple no-holonomic mobile robots based on consensus approach while guarantee inter-collision avoidance among robots. The proposed approach design a controller benefit of the product of Lyapunov and graph theory permit a group of agents to converge to a desired virtual geometric shape defined as an n-ellipsoid with its center track the desired reference trajectory. Furthermore, we inject into the proposed consensus algorithm a Fuzzy logic system to calculate the robot translation and angular velocity to keep the formation and get the desired direction of the virtual leader robot. Moreover, we have constructed a simulator for a small group of robots in. 3D environment founded on the Robot Operating System and Gazebo. The simulation results verify the effectiveness of the proposed method.

关键词： No-holonomic Mobile Robots consensus algorithm Lyapunov Fuzzy Logic Gazebo ROS

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