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Book
Planar transmission line structures
Author:
ISBN: 0879422327 9780879422325 Year: 1987 Publisher: New York (N.Y.) : IEEE press,


Book
Transmission lines and waveguides.
Author:
ISBN: 0471079294 9780471079293 Year: 1969 Publisher: New York John Wiley & Sons


Book
Power System Dynamic and Stability Issues in Modern Power Systems Facing Energy Transition
Authors: ---
ISBN: 303656036X 3036560351 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Dynamic stability basically deals with the interactions between the system's components. Following a disturbance, the system's variables undergo transitions that can induce oscillations in active and reactive power generation, resulting in the occurrence of voltage oscillatory modes and frequency deviation in the system. Depending on the entity of the disturbance, the small- or large-signal stability of the system under consideration can be investigated. The introduction of RES-based generation that does not participate in the network services (i.e., frequency and voltage regulation) due to lack of special controls will undoubtedly affect both the overall frequency and voltage stability. Large-scale transient stability is also a concern not to be overlooked: inverter-based wind and solar generation have different angle/speed swing behaviors with respect to traditional generation due to reduced inertia, different voltage swing behaviors due to different voltage control systems, different power flow patterns, and different displacements of synchronous generation at key locations. Therefore, although power system stability and dynamics have played a very central role in the management and study of electrical power systems thus far, it is also true that the emerging scenario requires new methodologies, technologies, and analyses. In this light, the current Special Issue aims to collect contributions (i.e., research papers and review articles) on power system dynamics and stability from experts in academia and industry.

Keywords

Technology: general issues --- History of engineering & technology --- power system stability --- inertia estimation --- PMU --- microgrids --- frequency control --- grid-forming --- 100% converter-interfaced generation --- virtual synchronous machine --- forced oscillation --- inverter-based resources (IBRs) --- grid vulnerability analysis --- active power modulation --- virtual inertia --- fast frequency measurement --- fast frequency regulation --- distributed energy resources --- ancillary services --- power hardware-in-the-loop --- legacy resources --- large perturbation angle stability --- small perturbation angle stability --- voltage stability --- synthetic inertia --- demand response --- reactive compensation --- power system restoration --- primary frequency control --- frequency nadir estimation --- low inertia systems --- real-time dynamic simulation --- national power grid --- cyber physical system (CPS) --- co-simulation --- battery energy storage system (BESS) --- energy management system (EMS) --- load modelling --- line modelling --- power system analysis --- transient stability --- small-signal stability --- inverter-based resources --- modular multilevel converters --- primary frequency regulation --- battery energy storage system --- Ornstein–Uhlenbeck stochastic process --- compound poisson stochastic process --- frequency stability --- rotor angle stability --- power system inertia --- converter-interfaced generation --- renewable power generators


Book
Digital Turn und Historische Bildungsforschung : Bestandsaufnahme und Forschungsperspektiven
Author:
ISBN: 3781559521 3781525171 Year: 2022 Publisher: Bad Heilbrunn Verlag Julius Klinkhardt

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Abstract

In recent decades, historical educational research has developed into a field of research and work that is multifaceted in its topics, methods, and theoretical references and is interdisciplinary. The methods, working techniques, and tools of the digital humanities, which influence many areas of the humanities and cultural studies today, are also already being applied there in a variety of ways. This volume demonstrates this with concrete examples from current research projects and working groups related to historical education research. The contributions give examples of the application of selected digital tools and research methods and put research-practical as well as epistemological questions up for discussion. Historische Bildungsforschung hat sich in den letzten Jahrzehnten zu einem Forschungs- und Arbeitsgebiet entwickelt, das in seinen Themen, Methoden und theoretischen Bezügen vielseitig aufgestellt und interdisziplinär anschlussfähig ist. Auch Methoden, Arbeitstechniken und Tools der Digital Humanities, die viele Bereiche der Geistes- und Kulturwissenschaften heute beeinflussen, finden dort bereits in vielfältiger Weise Anwendung. Dies zeigt der vorliegende Band anhand konkreter Beispiele aus aktuellen Forschungsprojekten und Arbeitsgruppen mit Bezug zur historischen Bildungsforschung. Die Beiträge geben Anwendungsbeispiele für ausgewählte digitale Werkzeuge und Forschungsmethoden und stellen forschungspraktische wie auch epistemologische Fragen zur Diskussion.

Keywords

History of education --- Historische Bildungsforschung; Digitalisierung; Digitale Medien; Technologische Entwicklung; Bildungsgeschichte; Computerunterstütztes Verfahren; Historische Quelle; Quellensammlung; Digitale Informationsspeicherung; Analyse; Grundwissen; Wissenschaftsforschung; Erziehungswissenschaft; Online; Modellierung; Computerlinguistik; Schulbuch; Schulgeschichte; Pädagogische Zeitschrift; Religionsunterricht; Frau; Studium; Methodologie; Kollaboration; Schule; Archiv; Open Access; Hochschulgeschichte; Forschungsdaten; Prosopografie; Vernetzung; Hochschule; Geisteswissenschaften; Student; Daten; Wirtschaftsgeschichte; Humankapital; Literatur; Erinnerung; Zeitgeschichte; Karte; Kollektives Gedächtnis; Holocaust; Lernen; Sexualaufklärung; Fotografie; Soziales Netzwerk; Website; Informationsangebot; Elektronische Datenverarbeitung; Mediengeschichte; Stapfer, Philipp Albert; Mollenhauer, Klaus; 17. Jahrhundert; 18. Jahrhundert; 19. Jahrhundert; 20. Jahrhundert; 21. Jahrhundert; Nationalsozialismus; Deutschland ; Mittelalter; Frühe Neuzeit; Methode; Projekt; Längsschnittuntersuchung; Quantitative Analyse; Qualitative Analyse; Statistik; Deutschland; Schweiz; Dänemark; Norwegen; Bologna; Padua; Paris; Hannover; Bochum; Heiliges Römisches Reich deutscher Nation; Digitalization; Technological development; History of education; History of educational activities; Science of science; Sciences of education; On line; Modelling (Psychology); Computational linguistics; Text book; Textbook; History of schools; Religious instruction; Teaching of religion; Woman; Women; Academic studies; Methodology; School; History of universities; Higher education institute; Humanities; Intellectual Disciplines; Male student; Data; Economic history; Human capital; Literature; Recollection; Contemporary history; Twentieth century history; Maps; Learning; Sex education; Photography; Social networks; Available information; Electronic data processing; History of media; Nazism; Middle ages; Method; Project; Projects (Learning Activities); Longitudinal analysis; Longitudinal study; Qualitative analysis; Statistics; Germany; Switzerland; Denmark; Norway

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