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检索条件"主题词=Density estimation robust algorithm"

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Multi-objective programming for optimal DG integration in active distribution systems

Multi-objective programming for optimal DG integration in ac...

引用

IEEE General Meeting Power& Energy Society

作者： F. Pilo G. Celli S. Mocci G.G. Soma Department of Electrical and Electronic Engineering Italy

Active distribution networks have the capability to allow the distributed energy resources integration at reasonable costs, opening new business opportunities. Although the sharing of responsibility among the system stakeholders (e.g., the Civil Society, the DSO and DER owners) is essential, undeniably they pursue different, and sometimes opposite goals. The authors, by adopting multi objective programming to simulate the behavior of the stakeholders, aim at assessing how the system players will drive the distribution evolution under the influence of different regulatory environments. All the scenarios have been analyzed on a case study representative of a typical distribution system. The results presented can help Regulators to define a fairer asset and performance based distribution revenue.

关键词： Planning Generators Energy loss Regulators density estimation robust algorithm Investments Optimization

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4×25-Gbit/s, 1.3-μm, monolithically integrated light source for 100-Gbit/s Ethernet

4×25-Gbit/s, 1.3-μm, monolithically integrated light sourc...

引用

European Conference on Optical Communication (ECOC)

作者： T. Fujisawa S. Kanazawa N. Nunoya H. Ishii Y. Kawaguchi A. Ohki N. Fujiwara K. Takahata R. Iga F. Kano H. Oohashi NTT Photonics Laboratories NTT Corporation Atsugi Kanagawa Japan

We have developed 4 × 25-Gbit/s, 1.3-μm, monolithically integrated light source for 100-Gbit/s Ethernet (100GBASE-LR4) for the first time. Error-free transmission of 10-km on SMF under 100-Gbit/s (4 × 25-Gb... 详细信息

关键词： Light sources Lasers Optical waveguides Modulation Waveguide lasers density estimation robust algorithm Optical transmitters

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Hybrid renewable energy and microgrid research work at NREL

Hybrid renewable energy and microgrid research work at NREL

引用

IEEE General Meeting Power& Energy Society

作者： Benjamin Kroposki Gregory Martin NREL

The National Renewable Energy Laboratory (NREL) conducts a variety of research in the area of hybrid power system integration and microgrids. NREL is studying hybrid (stand-alone) power systems incorporating photovoltaic power in the United States and assessing the characteristics and status of government-installed hybrid systems greater than 2 kW over the last 30 years. This research provides information to the community on hybrid power systems, presents lessons learned from operational experience, and provides analysis of challenges and success of the assessed systems. NREL also supports the development of IEEE P1547.4 Draft Guide for Design, Operation, and Integration of Distributed Resource Island Systems with Electric Power System as part of the further development of IEEE 1547-2003 Standard for Interconnecting Distributed Resources with Electric Power Systems. This standard is summarized here, providing alternative approaches and good practices for the design, operation, and integration of microgrids.

关键词： Batteries Inverters Maintenance engineering Hybrid power systems Generators density estimation robust algorithm

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Improving power quality and distribution efficiency in micro-grids by cooperative control of Switching Power Interfaces

Improving power quality and distribution efficiency in micro...

引用

International Power Engineering Conference (IPEC)

作者： Paolo Tenti Alessandro Costabeber Paolo Mattavelli Department of Information Engineering University of Padova Italy Center for Power Electronics Systems Virginia Polytechnic Institute and State University Blacksburg VA USA

Smart grids offer a wide application domain for power electronics. In fact, every distributed energy resource (DER) includes an electronic power processor (Switching Power Interface, SPI) which controls the currents drawn from the grid and can be driven to optimize the power flow, improve voltage stability and increase distribution efficiency. For these aims, such distributed SPIs must perform cooperatively. This is true also in low-voltage residential micro-grids, where the number of active DERs and the generated power may vary during daytime, thus requiring dynamic adaptation of SPI operation. To achieve this goal different approaches can be adopted, depending on the available communication capability. This paper discusses various control solutions applicable in absence of supervisory control, e.g., in residential micro-grids, where communication is possible between neighbor units only (surround control) or is not available at all (plug & play control).

关键词： Power quality Communication system control Smart grids Power electronics Energy resources density estimation robust algorithm Voltage control Load flow Power system stability Power generation

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Survey of Smart Grid Standardization Studies and Recommendations

Survey of Smart Grid Standardization Studies and Recommendat...

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IEEE International Conference on Smart Grid Communications (SmartGridComm)

作者： Sebastian Rohjans Mathias Uslar Robert Bleiker Jose González Michael Specht Thomas Suding Tobias Weidelt OFFIS Institute for Information Technology Oldenburg Germany

Currently, several smart grid efforts in US and Europe are gaining momentum. Even if there are different focuses in US and Europe on what is known as the smart grid, all agree on the fact, that standardization is a key issue. Hence, a lot of studies and roadmaps pick standardization in the context of smart grids out as a central theme. The various approaches are concentrating on different core areas, depending on the circumstances in which they were elaborated. However, no overview aligning these approaches exists. This contribution takes all relevant approaches up to now into account, which give concrete recommendations for smart grid standards. The approaches will be aligned, and a set of core standards will be identified to point out the most important fields for future research and development. Furthermore, the IEC TC 57 Seamless Integration Architecture SIA will be introduced and extended by future standards, which were identified as core standards and existing work not yet included in the SIA.

关键词： IEC standards Smart grids NIST Computer integrated manufacturing density estimation robust algorithm

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Optimal management of MicroGrid using Bacterial Foraging algorithm

Optimal management of MicroGrid using Bacterial Foraging Alg...

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Iranian Conference on Electrical Engineering (ICEE)

作者： R. Noroozian H. Vahedi Electrical Engineering Department Zanjan University Zanjan Iran

ISBN: (纸本)9781424467600

This paper focused on optimal operating strategy and cost optimization scheme for a MicroGrid by using Bacterial Foraging algorithm. Prior to the optimization of the microgrid itself, the system model components from some real manufactural data are constructed. The proposed cost function takes into consideration the costs of the emissions NO x , SO 2 , and CO 2 as well as the operation and maintenance costs. The battery storage is used for storing excess energy. The optimization is aimed at minimizing the cost function of the system while constraining it to meet the customer demand and safety of the system.

关键词： Microorganisms Cost function Power generation economics Fuel economy Batteries Economic forecasting Environmental economics Power generation density estimation robust algorithm Power system modeling

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Enterprise information & process change management for AMI and demand response

Enterprise information & process change management for AMI a...

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IEEE PES Transmission and Distribution Conference and Exposition

作者： Hahn Tram Quanta Technology LLC Raleigh NC USA

ISBN: (纸本)9781424465460;9781424465477

Driven to further increase energy and operational efficiencies and encouraged by government policies and incentives, many utilities are exploring, planning, or already beginning to implement “Smart Grid”. Smart Grid implementations can potentially add hundreds of thousands, if not millions, of new equipment and devices to the energy delivery system and infrastructure of the utility. Measurements will be collected from Smart Grid sensors and metering devices at hourly or 15-minute intervals, and some in near real-time, resulting in terabytes of data. Utility commands and controls will be available down to the customer-premise level. How would the utility manage all these new assets, all the new data, and the new advanced functionality to achieve the vision and objectives of Smart Grid? This presentation outlines the transformational changes of Smart Grid to the utility enterprise and through utility case examples, how the utility should prepare itself for these changes through Enterprise Information Management.

关键词： Ambient intelligence Load management Smart grids Energy management Asset management Energy efficiency Resource management Geographic Information Systems density estimation robust algorithm Remote monitoring

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Experience on the implementation of a microgrid project in Barcelona

Experience on the implementation of a microgrid project in B...

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

作者： Manuel Roman-Barri Ignasi Cairo-Molins Andreas Sumper Antoni Sudria-Andreu Catalonia Institute of Energy Research Barcelona Spain

This paper deals with the implementation of a operating microgrid based on current real and emulated energy resources which permits the experimentation of various scenarios. This microgrid is able to adapt to different sorts of energy sources, loads and storage devices, and to critical situations that, with testing and emulation, can improve performances. The microgrid is implemented with real time data acquisition systems, communications (such as IEC 61850), and intelligent electronics peripheral equipment. Block diagrams, showing implementation using power electronics along with corresponding results, are shown for better understanding. Implementation and experimentation with the microgrid under investigation will improve future research on microgrid and smartgrid projects.

关键词： Power grids Generators Wind power generation Batteries density estimation robust algorithm Photovoltaic systems Switches

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Agent-Oriented Designs for a Self Healing Smart Grid

Agent-Oriented Designs for a Self Healing Smart Grid

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IEEE International Conference on Smart Grid Communications (SmartGridComm)

作者： Steve Bou Ghosn Prakash Ranganathan Saeed Salem Jingpeng Tang Davin Loegering Kendall E. Nygard North Dakota State University Fargo ND USA Electrical and Computer Engineering Department University of North Dakota Grand Forks ND USA Information Technology Management Department University of Minnesota Crookston MN USA

Electrical grids are highly complex and dynamic systems that can be unreliable, insecure, and inefficient in serving end consumers. The promise of Smart Grids lies in the architecting and developing of intelligent distributed and networked systems for automated monitoring and controlling of the grid to improve performance. We have designed an agent-oriented architecture for a simulation which can help in understanding Smart Grid issues and in identifying ways to improve the electrical grid. We focus primarily on the self-healing problem, which concerns methodologies for activating control solutions to take preventative actions or to handle problems after they occur. We present software design issues that must be considered in producing a system that is flexible, adaptable and scalable. Agent-based systems provide a paradigm for conceptualizing, designing, and implementing software systems. Agents are sophisticated computer programs that can act autonomously and communicate with each other across open and distributed environments. We present design issues that are appropriate in developing a Multi-agent System (MAS) for the grid. Our MAS is implemented in the Java Agent Development Framework (JADE). Our Smart Grid Simulation uses many types of agents to acquire and monitor data, support decision making, and represent devices, controls, alternative power sources, the environment, management functions, and user interfaces.

关键词： Smart grids Decision making Monitoring Power system stability Adaptation model density estimation robust algorithm

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Development and test of a four-module 1200 kVA distributed generation power plant

Development and test of a four-module 1200 kVA distributed g...

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IEEE Conference on Innovative Technologies for an Efficient and Reliable Electricity Supply (CITRES)

作者： Stephen Fairfax Neal Dowling David Nichols MTechnology Inc. Saxonville MA USA Altairnano Inc. Reno NV USA

MTechnology, Inc., was retained to design and develop the power electronics system for a distributed generation power plant. The plant incorporated four 250 kW DC modules. The plant was required to operate both in grid-connect and grid-independent modes, with constraints upon the acceptable transients applied to the plant internal bus during transitions between modes. The transition from grid-connect to grid-independent mode required the plant power control system to assume responsibility for voltage regulation and power balance between generation and plant ancillary loads. Operation in grid-independent mode faced the challenge of starting relatively large compressor and fan loads, variable generation and load power levels, and the requirement to clear faults on the internal plant bus. The inverter controls were designed to supply up to 2x rated continuous output current into low voltage and fault conditions, with minimal disturbance of the DC power flow from the DER modules. This elevated current simplified coordination with protective devices on the customer and utility network.

关键词： Inverters Power generation Fuel cells Voltage control Relays density estimation robust algorithm

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