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Construction and application research of Active Distribution Network Situation Awareness System

Construction and application research of Active Distribution...

引用

IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

作者： Liang Chen Mengmeng Jia Xiaodong Yuan Huang Qiang Department of Power Network State Grid Jiangsu Electric Power Company Research Institute Nanjing Jiangsu China

ISBN: (纸本)9781509054190

Due to lack of the “Source-network-load” global perception and multiple time-scale situation awareness, the current distribution network cannot meet the requirements of the active distribution network (ADN) such as active control and active management. An ADN situation awareness system based on distributed monitoring and multi-source information fusion is proposed in this paper. By constructing a multi-level distributed monitoring system based on Internet of Things (IOT) technology, monitoring objects of distribution network are expanded to achieve global awareness in spatial scale. In the light of the randomness and volatility risk of distribution network operation, it is necessary to enhance observability of situation awareness in time scale. Thus, the situation awareness technology of distribution network based on multi-source information fusion is provided, which is constituted of the multi-source information fusion, source-load forecasting, fast simulation analysis, risk assessment and warning and visualization modules. Finally, the operation cockpit visualization technology enables operators to efficiently capture accurate distribution network security situation trend. The ADN Situation Awareness System Demonstration Project is currently being carried out by State Grid Jiangsu Power Company, the actual operation indicates that it can effectively enhance the operation situation awareness and risk early-warning capability.

关键词： Monitoring Real-time systems Indexes Voltage control Reactive power density estimation robust algorithm Risk management

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Real-time implementation of multiagent-based game theory reverse auction model for microgrid market operation

Real-time implementation of multiagent-based game theory rev...

引用

IEEE General Meeting Power& Energy Society

作者： Mehmet H. Cintuglu Harold Martin Osama A. Mohammed Florida International University Miami FL US

ISBN: (纸本)9781509041695

This paper presents a real-time implementation of multi-agent based game theory reverse auction model for microgrid market operation featuring conventional and renewable distributed energy resources (DER). Studies were conducted for a grid connected microgrid consisting of a synchronous generator, two inverter-based generation units and a combined load. The Multi-agent based platform was applied to monitoring, controlling and per-forming the reverse auction process of the DER. A competitive game-theory reverse auction model was investigated to schedule the DER unit commitment with hour-ahead market approach for the twenty-four hours of the day. The proposed methodology was realistically implemented and operated at Florida International University, Smart Grid Test system. The investigation shows that the proposed algorithm and the industrial based hardware structure can be implemented in existing electric utility grid as new assets of the system are added.

关键词： Microgrids density estimation robust algorithm Real-time systems Game theory Computational modeling Load modeling Computers

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Energy management and dynamic optimisation of eco-industrial parks

Energy management and dynamic optimisation of eco-industrial...

引用

International Universities Power Engineering Conference (UPEC)

作者： Christof Deckmyn Tine L. Vandoorn Lieven Vandevelde Jan Desmet Lemcko Greet Van Eetvelde Jonas Timmerman Electrical Energy Laboratory Ghent University Lemcko the electro-technical expertise centre of Howest University College West Flanders Kortrijk Belgium Environmental and spatial management Ghent University Ghent Belgium

As a result of the increasing number of distributed energy resources (DER) in the electrical grid and their commitment to future market participation, control strategies for optimal operation of DER within microgrids gain importance. Ensuring a smooth, reliable and economic operation of a micro-grid, requires an energy management system that dynamically fits the consumption to the production in combination with storage and vice versa. Quick response of an energy management strategy is crucial for a microgrid as compared to a conventional energy system. This paper discusses the possibilities offered by an energy management system in the operation of a microgrid. Various types of power management and control strategies, in particular for eco-industrial parks, are analysed and discussed. Subsequently, an environmentally friendly energy management optimisation technique is described in detail. The emphasis is placed on CO 2 neutrality, energy management improvements and dynamical optimisation of electrical energy on eco-industrial parks.

关键词： Microgrids density estimation robust algorithm Energy management Production Optimization Economics Business

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Secure communications via chaotic synchronization in Chua's circuit and Bonhoeffer-Van der Pol equation: numerical analysis of the errors of the recovered signal

Secure communications via chaotic synchronization in Chua's ...

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： R. Lozi Laboratoire de mathématiques URA Université de Nice Sophia Antipolis Nice France

The signal recovered from the first reported experimental secure communication system via chaotic synchronization contains some inevitable noise which degrades the fidelity of the original message. By cascading the output of the receiver in the original system into an identical copy of this receiver, it had be shown by computer experiments that this noise can be significantly reduced. We discuss the heuristic laws governing the errors of the recovered signal which are observed in a new series of very careful computer experiments. This discussion is done comparing these laws to the results obtained using the linear filtering theory. Some discrepancy appears. In order to understand the origin of the discrepancy we consider another simpler model based on the Bonhoeffer-Van der Pol equation where no chaos occurs. In this case both two heuristic laws are in good agreement with the linear filtering theory.

关键词： Chaotic communication density estimation robust algorithm Equations Electronic circuits Noise reduction Silicon Computer errors Maximum likelihood detection Circuit noise Error analysis

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Reliability study of a micro-grid power system

Reliability study of a micro-grid power system

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International Universities Power Engineering Conference (UPEC)

作者： A.K. Basu S.P. Chowdhury S. Chowdhury D. Ray P.A. Crossley CIEM India India Jadavpur University India Womens Polytechnic India WBSEB India University of Manchester Institute of Science and Technology UK

Deregulation and restructuring of old centralized power system has brought a renaissance in the history of electric power system. It has unleashed an open competition among the utility service providers in the respective sector of electric power system, i.e. generation, transmission, and distribution. Also, it gives birth to the new concept of micro-grids, which is an epitome of larger grid, called macro-grid, in general. Small utility service providers having generating capacity less than 10 MW are the main players in the micro-grid market. Micro-grids works, generally, at low voltage (415 V). Added advantages of micro-grids are its CHP (combined heat and power) operation, less emission of dasiaSOx and NOxpsila, reduction of dasiaTransmission line congestionpsila, easy installation and control of its small distributed energy resources etc. to name a few. Like macro-grid, main motto of the micro-grid system is to cater reliable and quality power to its customers. This paper presents a 6-bus system to study the reliability of the system in four different case studies. To judge the best reliable condition in each of the cases, four parameters, such as bus voltages, maximum line flow, slack bus injection, and system line loss, are considered and in each case study, these parameters are compared in different changing situations for getting the best result out of those situations. Fast de-coupled load flow (FDLF) method in Compaq visual FORTRAN is used to analysis the various cases. In all the analysis, macro-grid is considered as a large virtual generator and is used as a slack bus.

关键词： density estimation robust algorithm Power system reliability Load flow Reliability Power systems Power quality Cogeneration

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Spatio-temporal dynamics in an array of time delayed Van der Pol oscillators

Spatio-temporal dynamics in an array of time delayed Van der...

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： N. Miyabayashi S. Moro S. Mori IDepi . of Electrical Engineering Keio University Yokohama Japan

The spatio-temporal phenomena in coupled map lattices (CML) are investigated. We propose time delayed Van der Pol oscillator as a unit lattice of CML, which is described with discrete time. This is the first attempt to construct CML with realizable circuits, as far as we know. Clusterization and the ways of collapse of clusters to spatio-temporal chaos are observed in this system.

关键词： Delay effects density estimation robust algorithm Oscillators Chaos Coupling circuits Distributed parameter circuits Spatiotemporal phenomena Differential equations Biological system modeling Power system modeling

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Campus Microgrid: High Reliability for Active Distribution Systems

Campus Microgrid: High Reliability for Active Distribution S...

引用

IEEE Power and Energy Society General Meeting

作者： Mohammad Shahidehpour Mohammad Khodayar Masoud Barati Electrical and Computer Engineering Department Illinois Institute of Technology Chicago IL 60616 USA

ISBN: (纸本)9781467327275

Campus microgrid is composed of distributed energy resources (DER) including distributed generation (DG), controllable loads, and storage. In this paper, the role of high reliability distribution system (HRDS) in microgrid operations is evaluated. The HRDS implemented at Illinois Institute of Technology (IIT) is used as a case study along with DER to increase the load point reliability and decrease the operation cost of the microgrid.

关键词： energy resources (DER) study along the microgrid dispensing system MICRO-GRID density estimation robust algorithm Illinois loading point

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Probabilistic Reliability Evaluation for Distribution Systems with DER and Microgrids

Probabilistic Reliability Evaluation for Distribution System...

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International Conference on Probabilistic Methods Applied to Power Systems (PMAPS)

作者： Y. Sun M. H. J. Bollen G. W. Ault STRI AB on leave from the Institute for Energy and Environment University of Strathclyde Glasgow UK STRI AB 771 80 Ludvika Sweden and with EMC on Site Luleå University of Technology 931 87 Skellefteå Sweden email: m.bollen@*** Institute for Energy and Environment University of Strathclyde UK

This paper presents a method for calculating the reliability of distribution systems with distributed energy resources (DER). The impact of intentional islanding of the DER units on the reliability is studied in detail as well as the impact of different switching devices. A Monte-Carlo-based computer program has been developed to simulate the performance of different typical distribution feeders. Details of the Monte-Carlo simulation and selected simulation results are given in the paper. The presence of circuit breakers and the reliability of the DER unit have a large influence on the supply reliability. The reduction in interruption costs is further determined by the relation between costs and duration

关键词： density estimation robust algorithm Power system reliability Energy resources Protection Sun Computer network reliability Automation Circuit simulation Costs Distributed control

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Autonomous Operation of Multiple Interconnected Microgrids with Self–Healing Capability

Autonomous Operation of Multiple Interconnected Microgrids w...

引用

IEEE Power and Energy Society General Meeting

作者： Farhad Shahnia Ruwan P.S. Chandrasena Sumedha Rajakaruna Arindam Ghosh Centre of Smart Grid and Sustainable Power Systems Electrical and Computer Engineering Department Curtin University Perth Australia School of Electrical Engineering and Computer Science Queensland University of Technology Brisbane Australia.

ISBN: (纸本)9781479913022

This paper shows how multiple interconnected microgrids can operate in autonomous mode in a self–healing medium voltage network. This is possible if based on network self– healing capability, the neighbour microgrids are interconnected and a surplus generation capacity is available in some of the Distributed Energy Resources (DERs) of the interconnected microgrids. This will reduce or prevent load shedding within the microgrids with less generation capacity. Therefore, DERs in a microgrid are controlled such that they share the local load within that microgrid as well as the loads in other interconnected microgrids. Different control algorithms are proposed to manage the DERs at different operating conditions. On the other hand, a Distribution Static Compensator (DSTATCOM) is employed to regulate the voltage. The efficacy of the proposed power control, sharing and management among DERs in multiple interconnected microgrids is validated through extensive simulation studies using PSCAD/EMTDC.

关键词： Autonomous Operation Multiple Interconnected Microgrids Self–Healing Capability MICRO-GRID autonomous operation PLANT CAPACITY density estimation robust algorithm partial load load shedding Computer algorithms medium-voltage network Operating conditions LOAD

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Surface treatment of glass by microplasma

Surface treatment of glass by microplasma

引用

Conference Record of the IEEE Industry Applications Society Annual Meeting (IAS)

作者： Marius Blajan Akira Umeda Kazuo Shimizu Innovation and Joint Research Center Shizuoka University Hamamatsu Japan

Microplasma technology was used in many applications from biomedical to surface treatment of polymers. A new application could be surface treatment of glass panels for the electronic industry in order to improve the surface wettability. The technology which we propose is remote microplasma method. It can be easily applied as an industrial process due to the relatively low discharge voltage around 1 kV and a small size of the reactor. This paper presents the surface treatment by microplasma of glass using Ar, and mixtures of Ar with N 2 and O 2 . Microplasma process was analyzed be emission spectroscopy method. A Marx generator with MOSFET switches, a neon transformer and a pulse power supply were used to energize the electrodes. The emission spectra were measured by an ICCD camera and a spectrometer. An optic fiber was used to have an accurate measurement of a small part of microplasma discharge. Surface wettability of glass was confirmed measuring contact angle before and after the microplasma treatment. The surface of glass was modified due to the action of the radicals and active species generated by microplasma. Emission spectrum of microplasma discharge in Ar and mixtures of Ar with N 2 and O 2 showed Ar I peaks, OH peaks, N 2 second positive band system peaks and N 2 first positive band system peaks.

关键词： Argon Generators Electrodes Equations Discharges density estimation robust algorithm Glass

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