Download or read book Contribution l tude de la stabilit et la stabilisation des r seaux DC r cup ration d nergie written by Pierre Magne and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce mémoire est consacré à l'étude du phénomène d'instabilité pouvant apparaître sur les bus continus des réseaux DC. En effet, l'interaction entre les différents sous-systèmes électriques (source, charge, filtre) composant le réseau DC peut conduire, sous certaines conditions, à l'instabilité du système. A partir de la modélisation des charges sous forme de "Charge à Puissance Constante" (notée CPL), des méthodes d'études permettant l'analyse de la stabilité "petit-signal" et "grand-signal" des systèmes électriques sont présentées. Celles-ci permettent de mettre en évidence le fait qu'un réseau DC ne peut pas fournir n'importe quelle puissance à ses charges sans devenir instable. Ces puissances limites dépendent à la fois de la structure du réseau et des valeurs de ses éléments passifs et de sa tension de bus. Afin de pouvoir augmenter l'amortissement/les marges de stabilité du système, des méthodes de stabilisation sont présentées dans ce mémoire. Elles proposent d'adapter les commandes des charges de manière à assurer sa stabilité. Ceci se fait grâce à l'addition d'un signal stabilisant sur la référence de chaque charge. Ce signal n'est visible que durant les régimes transitoires de la charge afin de ne pas modifier le point de fonctionnement demandé. Néanmoins, plus on voudra stabiliser une charge et plus son signal stabilisant sera important. Un bon compromis doit donc être trouvé afin d'assurer la stabilité du système sans altérer les performances dynamiques des charges. Deux approches différentes sont proposées afin de générer ces commandes stabilisantes. La première se base sur la mise en place d'un stabilisateur centralisé. Deux méthodes centralisées sont alors proposées : la première s'appuie sur la théorie des multimodèles de Takagi-Sugeno alors que la seconde s'appuie sur la théorie de Lyapunov. Cette dernière permettra d'orienter les efforts de stabilisation sur les charges souhaitées pour par exemple, les diriger principalement vers les organes de récupération d'énergie. La seconde approche se base sur la mise en place d'un système de stabilisation multi-agent. Celui-ci présente une structure décentralisée où chaque agent correspond à un bloc de stabilisation. Ceux-ci vont compenser localement les impacts déstabilisants de leur charge respective et leurs actions combinées permettront d'assurer la stabilité du système. De plus, on propose d'utiliser un algorithme d'optimisation sous contraintes qui permettra de donner un dimensionnement du système minimisant les efforts de stabilisation tout en considérant des cas de défaut tels que la perte de l'un des agents ou la reconfiguration du réseau.
Download or read book Contribution l tude de la stabilit stabilisation et commande des syst mes dynamiques complexes written by Mohamed Gamal Eldin Darwish (auteur d'une thèse de sciences.) and published by . This book was released on 1978 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: STABILITE ET STABILISATION DES SYSTEMES DYNAMIQUES COMPLEXES. ETUDE DE LA COMMANDE BASEE SUR L'ANALYSE DE LA SENSIBILITE. PRESENTATION DU SYSTEME PHYSIQUE ETUDIE, MODELISATION ET DECOMPOSITION AGREGATION. STABILITE ET COMMANDE D'UN RESEAU D'ENERGIE ELECTRIQUE.
Download or read book The Works of Thomas Jefferson written by Thomas Jefferson and published by . This book was released on 1904 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory of X Ray Diffraction in Crystals written by William H. Zachariasen and published by Dover Publications. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic by one of the great figures in x-ray structure analysis provides a vigorous mathematical treatment of its subject. Addresses such fundamentals as crystal faces and edges, the lattice postulate, lattice rows and panes, as well as point, translation, and space groups. 1945 edition.
Download or read book Max s Sandwich Book written by Max Halley and published by Bonnier Publishing Ltd.. This book was released on 2018-05-17 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE SUNDAY TIMES BESTSELLER AS SEEN ON SUNDAY BRUNCH "GENIUS ... CHANGED THE WAY I'M GOING TO EAT FROM NOW ON ... THESE SANDWICHES ARE EPIC!" THE HAIRY BIKERS Max's Sandwich Book is the ultimate guide to creating perfection between two slices of bread. Max Halley owns Britain's most amazing sandwich shop. After working in some of the country's best restaurants, he realised that the sandwich, humanity's greatest invention, was due a renaissance. So Max decided to open his own place and reinvent the sandwich forever. Inside this book you will find: · Award-winning creations from his shop · Inspired variations on classic sandwiches · Brilliant, delicious ways to use your leftovers · Sandwiches for breakfast · Sandwiches for dinner · Sandwiches for dessert · And more than 100 recipes for making your own ingenious creations at home. Ham, Egg & Chips never tasted so good. Max is the owner of Max's Sandwich Shop in Crouch End, winner of the Observer Food Monthly Award for Best Cheap Eat in 2015. "Amazing" Russell Norman, author of Polpo "Max is a sensation!" Meera Sodha "The Ham, Egg & Chips is the best sandwich I've ever eaten in my life" Simon Rimmer, Sunday Brunch "Very, very good" Evening Standard
Download or read book The Optical Principles of the Diffraction of X rays written by R. W. James and published by . This book was released on 1967 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Graph Colouring and the Probabilistic Method written by Michael Molloy and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade, many major advances have been made in the field of graph coloring via the probabilistic method. This monograph, by two of the best on the topic, provides an accessible and unified treatment of these results, using tools such as the Lovasz Local Lemma and Talagrand's concentration inequality.
Download or read book The Problems of the Arid Zone written by Unesco and published by paris. This book was released on 1962 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crystal Physics written by German Stepanovich Zhdanov and published by . This book was released on 1965 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Duty and Desire Book Club Edition written by Anju Gattani and published by . This book was released on 2021-01-27 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: To uphold family honor and tradition, Sheetal Prasad is forced to forsake the man she loves and marry playboy millionaire Rakesh Dhanraj while the citizens of Raigun, India, watch in envy. On her wedding night, however, Sheetal quickly learns that the stranger she married is as cold as the marble floors of the Dhanraj mansion. Forced to smile at family members and cameras and pretend there's nothing wrong with her marriage, Sheetal begins to discover that the family she married into harbors secrets, lies and deceptions powerful enough to tear apart her world. With no one to rely on and no escape, Sheetal must ally with her husband in an attempt to protect her infant son from the tyranny of his family.sion.
Download or read book Climate and the British Scene Collins New Naturalist Library Book 22 written by Gordon Manley and published by HarperCollins UK. This book was released on 2013-04-11 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: From Chaucer’s sweet April showers to the peasoupers of Sherlock Holmes the British scene cannot be contemplated without climate entering in. This edition is exclusive to newnaturalists.com
Download or read book Methods of Study in Quantitative Soil Ecology Population Production and Energy Flow written by John Phillipson and published by Blackwell Scientific Publications Limited. This book was released on 1971 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The soil and its total metabolism. Plant roots. Plant litter. Heterotrophic microflora. Protozoa. Nematodes. Enchytraeids. Earthworms. Molluscs. A comparison of extraction methods for terrestrial anthropods. Mites. Apterygotes, pauropods and symphylans. Aphids. Ants and termites. Other arthropods.
Download or read book The Modern Stage and Other Worlds Routledge Revivals written by Austin E. Quigley and published by Routledge. This book was released on 2015-08-11 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern plays are strikingly diverse and, as a result, any attempt to locate an underlying unity between them encounters difficulties: to focus on what they have in common is often to overlook what is of primary importance in particular plays; to focus on their differences is to note the novelty of the plays without increasing their accessibility. In this study, first published in 1985, Austin E. Quigley takes as his paradigm case the relationship between the world of the stage and the world of the audience, and explores various modes of communication between domains. He asks how changes in the structure of the drama relate to changes in the structure of the theatre, and changes in the role of the audience. Detailed interpretations of plays by Pinero, Ibsen, Strindberg, Brecht, Ionesco, Beckett and Pinter question principles about the modern theatre and establish links between drama structure and theatre structure, theme, and performance space.
Download or read book European Communications Law and Technological Convergence written by Pablo Ibáñez Colomo and published by Kluwer Law International B.V.. This book was released on 2011-12-14 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a thorough critical examination of the European regulatory reaction to technological convergence, tracing the explicit and implicit mechanisms through which emerging concerns are incorporated into regulation and competition law, and then goes on to identify the patterns that underlie these responses so as to establish the extent to which the issues at stake, and the implications of intervention, are fully understood and considered by authorities. Focusing on ‘conflict points’ – areas of tension inevitably arising among overlapping regimes – the analysis covers such elements as the following: the provision of ‘multiple-play’ services; the advent of ‘convergent devices’; the interchangeability of transmission networks; subscription-based (‘pay television’) services; the diversification of television services (such as on-demand and niche-theme channels); the relative scarcity of (premium) content; the ‘migration’ of television content with cultural and social relevance to pay television; and the emergence of ‘bottleneck’ segments in the communications value chain. Endorsing the adjustment of existing rules to meet pluralist objectives, the author outlines a single, coherent regulatory approach. He shows how a careful analysis of the implications of technological convergence helps to solve conflicts between regimes. Specifically, the analysis addresses the level – national or EU – at which particular regulatory responses should emerge, the objectives guiding action, and the tools through which these objectives may be pursued. These conclusions command the attention of policymakers, regulators, and lawyers active in the ongoing development of communications law.
Download or read book The King and Kingship in Achaemenid Art written by Root and published by BRILL. This book was released on 1979-06 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Two Faces of Ionesco written by Rosette C. Lamont and published by . This book was released on 1978 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Henri Peyre, dean of French scholars in the United States, introduces "The Two Faces of Ionesco" thus: "Rosette Lamont, the shrewdest and most perceptive interpreter of Ioensco in Europe and America, and Melvin Friedman, known in France for his" Confirguation Critique de Samuel Beckett," which was published by The University of Chicago Press as "Samuel Beckett Now," have ingeniously gathered here a series of chapters by diverse hands which illuminate all the conflicting aspects of that enigmatic personality. Their introduction, and Professor Lamont's own essays in this volume, brilliantly written, unravel the thought, the technique and the complexities of Ionesco's work.
Download or read book Jean Jacques Rousseau on Adult Education and Revolution written by Frederick William Dame and published by Peter Lang Publishing. This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
