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International Conference on Wireless Communications and Signal Processing (WCSP)

作者： Jianting Yue Bo Yang Xinping Guan Department of Electronic Engineering Key Laboratory of System Control and Information Processing Ministry of Education Shanghai Jiaotong University Shanghai China Department of Automation Key Laboratory of System Control and Information Processing Ministry of Education Shanghai Jiaotong University Shanghai China

In wireless communication, jamming is a promising solution to provide improvement in secrecy rate, especially when security requirement is difficult to satisfy in realistic environment. Users could pay the friendly jammer for some interference to the eavesdropper and consequently improve the secrecy rate of their own, while the jammer wants to get maximum revenue within its capability. Thereby a Stackelberg game is introduced. Fairness also deserves particular attention, as unfair allocation of the limited resource deteriorates the performance of whole network. In this paper, we discuss a network with one jammer and several users, where they participate in the game and reach equilibrium ultimately. We utilize Kalai-Smorodinsky bargaining solution to guarantee fairness among users, making them balance their utility so as to make the best of the interference from the jammer. Moreover, we propose implementation of algorithm and demonstrate the performance.

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Voltage quality improvement in islanded microgrids supplying nonlinear loads

Voltage quality improvement in islanded microgrids supplying...

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2012 3rd Power Electronics, Drive systems and Technologies Conference, PEDSTC 2012

作者： Dehghani, Mohammad T. Vahedi, Abolfazl Savaghebi, Mehdi Guerrero, Josep M. Department of Power Engineering Saveh Branch Islamic Azad University Saveh Iran Center of Excellence for Power System Automation and Operation Iran University of Science and Technology Iran Department of Electronics Engineering Karaj Branch Islamic Azad University Karaj Iran Department of Automatic Control and Industrial Informatics Technical University of Catalonia Spain Institute of Energy Technology Aalborg University Denmark

ISBN: (纸本)9781467301114

The aim of this paper is to improve voltage quality at the terminals of distributed generators (DGs) in an islanded microgrid. To achieve this goal, it is proposed to include separate voltage and current control loops for the fundamental and harmonics frequencies. This way, it is not necessary to consider additional controllers to provide voltage harmonic compensation. The proposed control system can be implemented in a very simple way. The control structure of every single DG unit consists of active and reactive power droop controllers and voltage and current control loops. Simulation results are provided in order to show the effectiveness of the proposed control approach. © 2012 IEEE.

关键词： Harmonic analysis

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Distributed Cooperative Tracking for Multiple Second-order Nonlinear systems Using Only Relative Position Measurements

Distributed Cooperative Tracking for Multiple Second-order N...

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The 24th Chinese control and Decision Conference (第24届中国控制与决策学术年会 2012 CCDC)

作者： Ziyang Meng Zongli Lin Department of Automation Shanghai Jiao Tong University and KeyLaboratory of System Control and Inf Charles L. Brown Department of Electrical and Computer Engineering University of Virginia Charlott

In this paper, a distributed cooperative tracking problem is studied for a group of second-order nonlinear systems. The control goal is to drive the states of the followers to converge to those of a time-varying leader using only relative information. We focus on the case of the output feedback, where the velocities of the followers and the leader are not available. Two kinds of distributed observers are proposed for the cases when the follower dynamics are uniformly globally exponentially stable and the follower dynamics are continuously differentiable, respectively. Using the observer outputs, we design the control inputs such that the distributed cooperative tracking problem of multiple second-order nonlinear systems is solved under the constraint that only relative position measurements are available. Simulations are given to validate the theoretical results.

关键词： networked second-order nonlinear systems output feedback continuously differentiable

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Energy management strategy of islanded microgrid based on power flow control

Energy management strategy of islanded microgrid based on po...

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Innovative Smart Grid Technologies (ISGT)

作者： Ye Zhang Hong Jie Jia Li Guo Key Laboratory of Power System Simulation and Control of Ministry of Education Schoolof Electrical Engineering & Automation Tianjin University Tianjin China Tianjin University Tianjin Tianjin CN

As the remote areas can not be connected to large electric system, using local renewable resources and a certain capacity of energy storage devices to construct a microgrid for power supply will be the only choice. This paper introduces a new energy management strategy of islanded microgrid based on power flow control. The islanded microgrid utilizes the hybrid AC/DC structure. Battery storage system keeps the DC bus voltage constant, PV array as a current source is connected to the DC bus and a main DC/AC inverter in VF mode is used to provide the voltage and frequency references for the AC bus. In this energy management strategy, power flow control is applied to regulate the SOC of batteries in the certain range, control the batteries to avoid over-discharge/over-charge and frequent transition between charge and discharge by the means of output power limitation of the solar energy, switching wind turbine and controllable load and so on. The PSCAD test results show the feasibility and effectiveness of this energy management strategy.

关键词： Batteries Discharges (electric) Power generation system-on-a-chip Voltage control Partial discharges Arrays

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On-line and dynamic estimation of Rician fading channels in GSM-R networks

On-line and dynamic estimation of Rician fading channels in ...

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International Conference on Wireless Communications and Signal Processing (WCSP)

作者： Yongsen Ma Pengyuan Du Xiaofeng Mao Chengnian Long Department of Automation Key Laboratory of System Control and Information Processing Ministry of Education Shanghai Jiaotong University China Department of Electronic Engineering Shanghai Jiaotong University China

ISBN: (纸本)9781467358309

The on-line and dynamic estimation algorithm for Rician fading channels in GSM-R networks is proposed, which is an expansion of local mean power estimation of Rayleigh fading channels. The proper length of statistical interval and required number of averaging samples are determined which are adaptive to different propagation environments. It takes advantage of the sampling signals and Rician fading parameters of last estimation to reduce measurement overhead. The performance of this method was evaluated by measurement experiment along the Beijing-Shanghai high-speed railway. When it is NLOS propagation, the required sampling intervals can be increased from 1.1λ in Lee's method to 3.7λ of the on-line and dynamic algorithm. And the sampling interval can be set up to 12λ although the length of statistical interval decreases when there is LOS signal, which can reduce the measurement overhead significantly. The algorithm can be applied in coverage assessment with lower measurement overhead, and in dynamic and adaptive allocation of wireless resource.

关键词： Dynamic Estimation Rician Rician fading channels Rician fading IN-LINE dynamic Dynamic algorithms sampling interval Self tuning

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Dynamic model based optimization control for combustion process of coke oven

Dynamic model based optimization control for combustion proc...

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31st Chinese control Conference, CCC 2012

作者： Lei, Qi Wu, Min Yu, Li Jing School of Information Science and Engineering Central South University Changsha 410083 China Hunan Engineering Laboratory for Advanced Control and Intelligent Automation Changsha 410083 China Key Laboratory of System Control and Information Processing Ministry of Education Shanghai 200240 China

ISBN: (纸本)9789881563811

In view of large range change of operating status of combustion process and difficulties in building global model and timely optimizing control parameters, this paper presents dynamic model based optimization control method using the property that just-in-time learning model can rapidly reflect process change characteristics. Based on the idea of local modeling, distance and change trend angle between samples are both considered to choose data and create an online sample library. With this dynamic sample library, a dynamic model for combustion process of coke oven is build. And based on the dynamic process model, the differential evolution algorithm is applied to optimization the universe parameters of fuzzy control to ensure the controller can meet the dynamic changes of the combustion process of coke oven. Simulations verified the effectiveness of the method. © 2012 Chinese Assoc of Automati.

关键词： Evolutionary algorithms

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Design of multiple anti-windup loops for multiple activations

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Science China(Information Sciences) 2012年第9期55卷 1925-1934页

作者： WU XiongJun 1,2 & LIN Zongli 3,1 1 Department of automation,Shanghai Jiao Tong University,and Key Laboratory of system control and Information Processing,Ministry of Education of China,Shanghai 200240,China 2 No.802 Institute of Shanghai Academy of Space Flight Technology,the Eighth Academy of China Aerospace Science and Technology Corporation,Shanghai 200090,China 3 Charles L.Brown Department of Electrical and Computer engineering,University of Virginia,P.O.Box 400743,Charlottesville,VA 22904-4743,USA 1. Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai 200240 China2. No. 802 Institute of Shanghai Academy of Space Flight Technology the Eighth Academy of China Aerospace Science and Technology Corporation Shanghai 200090 China3. Charles L. Brown Department of Electrical and Computer Engineering University of Virginia P.O. Box 400743 Charlottesville VA 22904-4743 USA

This paper considers anti-windup design for linear systems subject to actuator *** anti-windup gains are designed for activations immediately at the occurrence actuator saturation,after the saturation has reached a certain level and in anticipation of the occurrence of saturation,*** design is based on the minimization of L 2 gain from the disturbance to the controlled output of the resulting closed-loop *** anti-windup scheme involves a single anti-windup loop for immediate activation.A recent innovation is to design a single anti-windup loop for delayed or anticipatory activation,as well as to design two anti-windup gains,one for immediate activation and one for delayed *** design of three anti-windup gains for three different activations is shown through simulation to lead to significant further performance improvement over the previous activation schemes.

关键词： actuator saturation anti-windup anticipatory activation delayed activation L 2 gain nonlinear control

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INFORMATION-CENTRIC INDUSTRIAL INTERNET OF THINGS:SERVICE MODEL

INFORMATION-CENTRIC INDUSTRIAL INTERNET OF THINGS:SERVICE MO...

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2012 IEEE 2nd International Conference on Cloud Computing and Intelligence systems

作者： Yang Wang Peng Zeng Xu Wang Yangyu Zhang Fangjun Kuang Baohui Zhu Laboratory of Industrial Control Network and System Shenyang Institute of AutomationChinese Academy of Sciences School of Mechanical Engineering Liaoning University of Petroleum and Chemical Technology University of Chinese Academy of Sciences

Industrial network of the next generation are expected to have augmented capabilities and intelligence within the information-centric paradigm supports. In this paper, a 7-level network protocol is devised with the service-oriented architecture of a 3-tier hierarchical model. Large-scale decentralized resources are abstracted into virtual physical devices first as a primary service provider. Knowledge and services are defined and formulated using ontology models in a modeling layer. Context awareness is used to align attributes and to intensify couplings between different decentralized resources by decomposing and aggregating internal ontology models. Knowledge, services and context make large-scale industrial networks more cognitive and feasible. Through the optimal composition of elementary services, decentralized applications are implemented in the service-oriented architecture. An informational architecture can finally be established using incomplete measurement data and reasoning for large-scale industrial networks.

关键词： semantic networks, Internet of things (IoTs), service-oriented architectures (SOAs), smart grid

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Distributed Filtering Basing Consensus for the Local Strongly Coupled systems

Distributed Filtering Basing Consensus for the Local Strongl...

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World Congress on Intelligent control and automation

作者： Yunze Cai Hua O. Wang Xiaoming Xu Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information Processing Ministry of Education of China Department of Mechanical Engineering Boston University Department of Automation Shanghai Jiao Tong University and the University of Shanghai for Science and Technology

ISBN: (纸本)9781467313971

The interactions between subsystems are important for large-scale systems. We introduce a local strongly coupled system which coupled by random communication between subsystems. Due to the intermittent communication, it is difficult to apply the standard Kalman or robust filter to design procedures to such systems. In this paper, we addressed the distributed robust filter design method for this kind of system based on the consensus idea. The main result is a sufficient condition which guarantees a suboptimal level of disagreement of estimates in a coupled network of estimators. The condition is formulated in terms of feasibility of biaffine matrix inequalities (BMIs). The generic algorithm is used to treat the bilinear relation between filter parameters and the interconnection gains. The proposed approach is applied to the problem of formation-based robust synchronization. The numerical simulations show the effectiveness of the proposed filtering method.

关键词： Distributed Filtering Local Strongly Coupled systems Consensus Estimation

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INFORMATION-CENTRIC INDUSTRIAL INTERNET OF THINGS:ENERGY MODEL

INFORMATION-CENTRIC INDUSTRIAL INTERNET OF THINGS:ENERGY MOD...

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2012 IEEE 2nd International Conference on Cloud Computing and Intelligence systems

作者： Yang Wang Peng Zeng HuaLiang Zhang Yang Liu Ting Wang FangJun Kuang Laboratory of Industrial Control Network and System Shenyang Institute of AutomationChinese Academy of Sciences School of Mechanical Engineering Liaoning University of Petroleum and Chemical Technology University of Chinese Academy of Sciences

Service-oriented architectures make establishing comprehensive profiles of smart factories feasible. In this paper, an energy tree model is used to describe an overall and detailed profile that shapes energy system dynamics. The model of the energy tree that accumulates local information in real-time, is managed by information-centric industrial networks. Plant-site energy resources that are temporally or spatially related are aligned into groups to relieve ever-changing temporal and spatial misalignments. Meanwhile, energy resources are generalized into process units and energy interconnectors. The key objective of energy tree is to align attributes and to intensify couplings between different process units and energy interconnectors by decomposing and aggregating energy flow. An indoor smart microgrid is set up to testify the model of energy tree, and the electric power input and output were analyzed, which verifies the availability of the energy tree.

关键词： energy Model Internet of things (IoTs) service-oriented architectures (SOAs) smart microgrid

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