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Die Buchreihe Elektrische Energieversorgung ist auf die Behandlung von stationären und quasistationären Zuständen des Elektroenergiesystems fokussiert und soll anhand von detaillierten Beschreibungen und Darstellungen das notwendige Rüstzeug zur Verfügung stellen, um selbständig Fragestellungen aus der Planung und Führung von elektrischen Energiesystemen behandeln zu können. Der Band Betriebsmittel und ihre quasistationäre Modellierung behandelt die Herleitung und Beschreibung der Betriebsmittelmodelle und ihrer Ersatzschaltungen in den Symmetrischen Koordinaten. Im Einzelnen wird auf die aktiven Betriebsmittel Synchronmaschine, Asynchronmaschine und Ersatznetz sowie auf die passiven Übertragungselemente Leitungen, d.h. Freileitungen und Kabel, Transformatoren, Drosselspulen und Kondensatoren detailliert eingegangen. Die Ersatzschaltungen sind die Basis für die Berechnung und Analyse von eingeschwungenen stationären und quasistationären Betriebszuständen in Elektroenergiesystemen und für die Auslegung der Betriebsmittel sowie für die Analyse des grundsätzlichen Betriebsverhaltens und der elektrischen Eigenschaften in fehlerfreien als auch in gestörten Betriebszuständen. Univ.-Prof. Dr.-Ing. habil. Lutz Hofmann ist Leiter des Instituts für Elektrische Energiesysteme der Leibniz Universität Hannover und vertritt dort das Fachgebiet Elektrische Energieversorgung. Außerdem ist er Themenfeldleiter »Übertragungsnetze« am Fraunhofer-Institut für Energiewirtschaft und Energiesystemtechnik in Kassel. Volume 2 describes the operation, mathematical models, and equivalent circuits for symmetric and asymmetric operational states. On this basis, the work explains the stationary and quasi-stationary operational behavior of these states, along with the most important procedures for calculating three-phase systems. Key equations and models are collected in a concise and clearly organized table.

Electrical engineering. --- Energy supply. --- electrical engineering. --- power grid.

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The demand for smart grid and smart home applications has raised the recent interest in power line communication (PLC) technologies, and has driven a broad set of deep surveys in low-voltage (LV) power line channels. This book proposes a set of novel approaches, to characterize and to emulate LV power line channels in the frequency range from0.15to 10 MHz, which closes gaps between the traditional narrowband (up to 500 kHz) and broadband (above1.8 MHz) ranges.

Stromnetz --- Emulation --- Powerline Kommunikation --- Kanalmodel --- Channel Model --- Power Line Communication --- Power Grid

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"Somewhere, there is always wind blowing or the sun shining." This maxim could lead the global shift from fossil to renewable energy sources, suggesting that there is enough energy available to be turned into electricity. But the already impressive numbers that are available today, along with the European Union's 20-20-20 goal - to power 20% of the EU energy consumption from renewables until 2020 -, might mislead us over the problem that the go-to renewables readily available rely on a primary energy source mankind cannot control: the weather. At the same time, the notion of the smart grid introduces a vast array of new data coming from sensors in the power grid, at wind farms, power plants, transformers, and consumers. The new wealth of information might seem overwhelming, but can help to manage the different actors in the power grid. This book proposes to view the problem of power generation and distribution in the face of increased volatility as a problem of information distribution and processing. It enhances the power grid by turning its nodes into agents that forecast their local power balance from historical data, using artificial neural networks and the multi-part evolutionary training algorithm described in this book. They pro-actively communicate power demand and supply, adhering to a set of behavioral rules this book defines, and finally solve the 0-1 knapsack problem of choosing offers in such a way that not only solves the disequilibrium, but also minimizes line loss, by elegant modeling in the Boolean domain. The book shows that the Divide-et-Impera approach of a distributed grid control can lead to an efficient, reliable integration of volatile renewable energy sources into the power grid.

Neural networks (Computer science) --- Artificial neural networks --- Nets, Neural (Computer science) --- Networks, Neural (Computer science) --- Neural nets (Computer science) --- Artificial intelligence --- Natural computation --- Soft computing --- Smart Grid --- Power Grid Management --- Artificial Intelligence --- Boolean Algebra

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The electricity market has experienced enormous setbacks in delivering on the promise of deregulation. In theory, deregulating the electricity market would increase the efficiency of the industry by producing electricity at lower costs and passing those cost savings on to customers. As Electricity Deregulation shows, successful deregulation is possible, although it is by no means a hands-off process-in fact, it requires a substantial amount of design and regulatory oversight. This collection brings together leading experts from academia, government, and big business to discuss the lessons learned from experiences such as California's market meltdown as well as the ill-conceived policy choices that contributed to those failures. More importantly, the essays that comprise Electricity Deregulation offer a number of innovative prescriptions for the successful design of deregulated electricity markets. Written with economists and professionals associated with each of the network industries in mind, this comprehensive volume provides a timely and astute deliberation on the many risks and rewards of electricity deregulation.

Electric utilities -- Deregulation -- United States. --- Electric utilities - Deregulation - United States. --- Electric utilities -- Deregulation. --- Electric utilities. --- Electric utilities --- Deregulation --- E-books --- electric, regulations, academic, scholarly, research, market, marketplace, electrical, power, grid, industry, industrial, price, cost, savings, money, monetary, economics, economy, finance, financial, oversight, academia, government, interdisciplinary, experts, business, california, case study, essay collection, policy, advice, industries, career, professional.

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The heat storage based on thermochemical technology is associated with higher amounts of energy stored with respect to systems based on sensible heat. This interesting feature is stimulating the interest of the scientific community, among energy providers and grid managers, since it can effectively support the operation and integration of renewable high-efficiency systems and local smart grids. Research in this field is achieving unprecedented goals thanks to the profitable exploitation of results obtained in the field of heat pumps and thermally driven systems. The present issue offers the reader a sensational window to this rapidly evolving world.

solar DWH --- adsorption --- heat storage --- energy efficiency --- climate conditions --- numerical simulation --- chemical sorption --- system efficiency --- reaction enthalpy --- theoretical limits --- cold storage --- mobile refrigeration --- FAM Z02 --- SAPO-34 --- zeolite --- thermochemical storage --- sorption heat storage --- power-to-heat --- power grid support --- thermal storage --- solar systems --- experimental campaign --- numerical modelling --- SAPO34 --- foam