Download or read book Interactions des dispositifs FACTS dans les grands r seaux lectriques written by Jean-Christophe Passelergue and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'augmentation des transits de puissance dans les réseaux d'énergie électrique ainsi que les contraintes environnementales ont conduit à l'introduction des dispositifs FACTS (Flexible AC Transmission Systems) pour l'amélioration de l'exploitation des réseaux. Ces dispositifs sont capables de remplir diverses fonctions comme le maintien de la tension, le contrôle des flux de puissance, l'amélioration de la stabilité du réseau, l'augmentation de la puissance transmissible maximale, etc. De plus, grâce à leur temps de réponse rapide, ils sont apparus comme des outils efficaces pour l'amortissement des oscillations électromécaniques très basses fréquences. Cette nouvelle fonction des dispositifs FACTS est d'autant plus importante que les réseaux mondiaux sont de plus en plus interconnectés, donc sensibles aux oscillations électromécaniques inter-régions. Cependant, le recours à de nombreux dispositifs FACTS dans un réseau nécessite d'étudier attentivement les éventuels problèmes d'interaction de régulation des dispositifs FACTS entre eux, mais aussi avec les autres éléments du réseau. Le travail réalisé dans le cadre de cette thèse traite des phénomènes dynamiques liés aux problèmes d'interaction résultant de l'insertion d'un ou plusieurs dispositifs FACTS shunt. Des indices de sensibilité et d'influence sont définis depuis les concepts de commandabilité et d'observabilité respectivement afin de prévoir l'importance des phénomènes d'interaction liés à l'insertion d'un dispositif FACTS et d'identifier les zones d'influence du dispositif FACTS. Ces indices sont appliqués à un réseau test 2 zones 4 machines et à un réseau réel simplifié 29 machines. Deux méthodes de coordination (méthode de type " minimax " et méthode linéaire quadratique décentralisée) sont mises en œuvre pour coordonner les dispositifs FACTS entre eux et avec les stabilisateurs de puissance (PSS - Power System Stabilizer) dans le réseau test 2 zones 4 machines.
Download or read book INTERACTIONS DES DISPOSITIFS FACTS DANS LES GRANDS RESEAUX ELECTRIQUES written by JEAN-CHRISTOPHE.. PASSELERGUE and published by . This book was released on 1998 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'AUGMENTATION DES TRANSITS DE PUISSANCE DANS LES RESEAUX D'ENERGIE ELECTRIQUE AINSI QUE LES CONTRAINTES ENVIRONNEMENTALES ONT CONDUIT A L'INTRODUCTION DES DISPOSITIFS FACTS (FLEXIBLE AC TRANSMISSION SYSTEMS) POUR L'AMELIORATION DE L'EXPLOITATION DES RESEAUX. CES DISPOSITIFS SONT CAPABLES DE REMPLIR DIVERSES FONCTIONS COMME LE MAINTIEN DE LA TENSION, LE CONTROLE DES FLUX DE PUISSANCE, L'AMELIORATION DE LA STABILITE DU RESEAU, L'AUGMENTATION DE LA PUISSANCE TRANSMISSIBLE MAXIMALE, ETC. DE PLUS, GRACE A LEUR TEMPS DE REPONSE RAPIDE, ILS SONT APPARUS COMME DES OUTILS EFFICACES POUR L'AMORTISSEMENT DES OSCILLATIONS ELECTROMECANIQUES TRES BASSES FREQUENCES. CETTE NOUVELLE FONCTION DES DISPOSITIFS FACTS EST D'AUTANT PLUS IMPORTANTE QUE LES RESEAUX MONDIAUX SONT DE PLUS EN PLUS INTERCONNECTES, DONC SENSIBLES AUX OSCILLATIONS ELECTROMECANIQUES INTER-REGIONS. CEPENDANT, LE RECOURS A DE NOMBREUX DISPOSITIFS FACTS DANS UN RESEAU NECESSITE D'ETUDIER ATTENTIVEMENT LES EVENTUELS PROBLEMES D'INTERACTION DE REGULATION DES DISPOSITIFS FACTS ENTRE EUX, MAIS AUSSI AVEC LES AUTRES ELEMENTS DU RESEAU. LE TRAVAIL REALISE DANS LE CADRE DE CETTE THESE TRAITE DES PHENOMENES DYNAMIQUES LIES AUX PROBLEMES D'INTERACTION RESULTANT DE L'INSERTION D'UN OU PLUSIEURS DISPOSITIFS FACTS SHUNT. DES INDICES DE SENSIBILITE ET D'INFLUENCE SONT DEFINIS DEPUIS LES CONCEPTS DE COMMANDABILITE ET D'OBSERVABILITE RESPECTIVEMENT AFIN DE PREVOIR L'IMPORTANCE DES PHENOMENES D'INTERACTION LIES A L'INSERTION D'UN DISPOSITIF FACTS ET D'IDENTIFIER LES ZONES D'INFLUENCE DU DISPOSITIF FACTS. CES INDICES SONT APPLIQUES A UN RESEAU TEST 2 ZONES 4 MACHINES ET A UN RESEAU REEL SIMPLIFIE 29 MACHINES. DEUX METHODES DE COORDINATION (METHODE DE TYPE MINIMAX ET METHODE LINEAIRE QUADRATIQUE DECENTRALISEE) SONT MISES EN UVRE POUR COORDONNER LES DISPOSITIFS FACTS ENTRE EUX ET AVEC LES STABILISATEURS DE PUISSANCE (PSS - POWER SYSTEM STABILIZER) DANS LE RESEAU TEST 2 ZONES 4 MACHINES.
Download or read book Interaction des dispositifs FACTS avec les charges dynamiques dans les r seaux de transport et d interconnexion written by Sami Ammari and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La dérégulation du marché de l'électricité, qui concerne progressivement tous les pays d'Europe, modifie profondément l'approche technico-économique dans l'exploitation et l'optimisation des réseaux électriques. C'est dans ce nouveau contexte que les spécialistes des .réseaux électriques se voient de plus en 'plus confrontés à de nombreux défis. Le développement des dispositifs FACTS (Flexible AC Transmission System) ouvre de nouvelles perspectives pour une meilleure exploitation des réseaux par leur action continue et rapide _sur les différents paramètres du réseau. Toutefois, ces dispositifs, ne sont pas à l'abri d'éventuelles interactions entre eux mais aussi avec d'autres éléments du réseau tels que les charges dynamiques. Cette thèse, qui s'inscrit dans le cadre de l'analyse et l'amélioration de la sécurité dynamique des réseaux électriques, s'est focalisé sur l'impact de l'interaction des dispositifs FACTS avec les charges dynamiques. Dans ce travail, il a été démontré que les boucles d'amortissement des oscillations de puissance dimensionnées par les techniques classiques de sensibilité ne sont pas robustes vis-à-vis des variations des modèles de charge. Pour remédier ,à ces problèmes, une première méthode, basée sur la sensibilité des valeurs propres et tenant compte. des variations des modèles de charge, a été proposée. Deux autres méthodes plus robustes, basées sur les techniques LMI, ont été mises en oeuvre. La première, basée Sllr une représentation polytopique des systèmes incertains, convient au cas d'incertitudes non structurées. La deuxième, basée sur une représentation LPV (système linéaire à paramètres variants), permet de traiter le cas d'incertitudes structurées.
Download or read book INTERACTION DES DISPOSITIFS FACTS AVEC LES CHARGES DYNAMIQUES DANS LES RESEAUX DE TRANSPORT ET D INTERCONNEXION written by SAMI.. AMMARI and published by . This book was released on 2000 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA DEREGULATION DU MARCHE DE L'ELECTRICITE, QUI CONCERNE PROGRESSIVEMENT TOUS LES PAYS D'EUROPE, MODIFIE PROFONDEMENT L'APPROCHE TECHNICO-ECONOMIQUE DANS L'EXPLOITATION ET L'OPTIMISATION DES RESEAUX ELECTRIQUES. C'EST DANS CE NOUVEAU CONTEXTE QUE LES SPECIALISTES DES RESEAUX ELECTRIQUES SE VOIENT DE PLUS EN PLUS CONFRONTES A DE NOMBREUX DEFIS. LE DEVELOPPEMENT DES DISPOSITIFS FACTS (FLEXIBLE AC TRANSMISSION SYSTEM) OUVRE DE NOUVELLES PERSPECTIVES POUR UNE MEILLEURE EXPLOITATION DES RESEAUX PAR LEUR ACTION CONTINUE ET RAPIDE SUR LES DIFFERENTS PARAMETRES DU RESEAU. TOUTEFOIS, CES DISPOSITIFS, NE SONT PAS A L'ABRI D'EVENTUELLES INTERACTIONS ENTRE EUX MAIS AUSSI AVEC D'AUTRES ELEMENTS DU RESEAU TELS QUE LES CHARGES DYNAMIQUES. CETTE THESE, QUI S'INSCRIT DANS LE CADRE DE L'ANALYSE ET L'AMELIORATION DE LA SECURITE DYNAMIQUE DES RESEAUX ELECTRIQUES, S'EST FOCALISE SUR L'IMPACT DE L'INTERACTION DES DISPOSITIFS FACTS AVEC LES CHARGES DYNAMIQUES. DANS CE TRAVAIL, IL A ETE DEMONTRE QUE LES BOUCLES D'AMORTISSEMENT DES OSCILLATIONS DE PUISSANCE DIMENSIONNEES PAR LES TECHNIQUES CLASSIQUES DE SENSIBILITE NE SONT PAS ROBUSTES VIS-A-VIS DES VARIATIONS DES MODELES DE CHARGE. POUR REMEDIER A CES PROBLEMES, UNE PREMIERE METHODE, BASEE SUR LA SENSIBILITE DES VALEURS PROPRES ET TENANT COMPTE DES VARIATIONS DES MODELES DE CHARGE, A ETE PROPOSEE. DEUX AUTRES METHODES PLUS ROBUSTES, BASEES SUR LES TECHNIQUES LMI, ONT ETE MISES EN UVRE. LA PREMIERE, BASEE SUR UNE REPRESENTATION POLYTOPIQUE DES SYSTEMES INCERTAINS, CONVIENT AU CAS D'INCERTITUDES NON STRUCTUREES. LA DEUXIEME, BASEE SUR UNE REPRESENTATION LPV (SYSTEME LINEAIRE A PARAMETRES VARIANTS), PERMET DE TRAITER LE CAS D'INCERTITUDES STRUCTUREES.
Download or read book Bruno Latour in Pieces written by Henning Schmidgen and published by Fordham Univ Press. This book was released on 2014-10-15 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bruno Latour stirs things up. Latour began as a lover of science and technology, co-founder of actor-network theory, and philosopher of a modernity that had “never been modern.” In the meantime he is regarded not just as one of the most intelligent—and also popular—exponents of science studies but also as a major innovator of the social sciences, an exemplary wanderer who walks the line between the sciences and the humanities. This book provides the first comprehensive overview of the Latourian oeuvre, from his early anthropological studies in Abidjan (Ivory Coast), to influential books like Laboratory Life and Science in Action, and his most recent reflections on an empirical metaphysics of “modes of existence.” In the course of this enquiry it becomes clear that the basic problem to which Latour’s work responds is that of social tradition, the transmission of experience and knowledge. What this empirical philosopher constantly grapples with is the complex relationship of knowledge, time, and culture.
Download or read book Self Tracking written by Gina Neff and published by MIT Press. This book was released on 2016-06-24 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: What happens when people turn their everyday experience into data: an introduction to the essential ideas and key challenges of self-tracking. People keep track. In the eighteenth century, Benjamin Franklin kept charts of time spent and virtues lived up to. Today, people use technology to self-track: hours slept, steps taken, calories consumed, medications administered. Ninety million wearable sensors were shipped in 2014 to help us gather data about our lives. This book examines how people record, analyze, and reflect on this data, looking at the tools they use and the communities they become part of. Gina Neff and Dawn Nafus describe what happens when people turn their everyday experience—in particular, health and wellness-related experience—into data, and offer an introduction to the essential ideas and key challenges of using these technologies. They consider self-tracking as a social and cultural phenomenon, describing not only the use of data as a kind of mirror of the self but also how this enables people to connect to, and learn from, others. Neff and Nafus consider what's at stake: who wants our data and why; the practices of serious self-tracking enthusiasts; the design of commercial self-tracking technology; and how self-tracking can fill gaps in the healthcare system. Today, no one can lead an entirely untracked life. Neff and Nafus show us how to use data in a way that empowers and educates.
Download or read book Cinema Trance and Cybernetics written by Ute Holl and published by . This book was released on 2017-03-15 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: We ve all had the experience of watching a film and feeling like we ve been in a trance. This book takes that experience seriously, explaining cinema as a cultural technique of trance, one that unconsciously transforms our perceptions. Ute Holl moves from anthropological and experimental cinema through nineteenth-century psychological laboratories, which she shows developed technique of testing, measuring, and classifying the mind that can be seen as a prehistory of cinema, one that allows us to see the links among cinema, anthropology, psychology, and cybernetics."
Download or read book Buyology written by Martin Lindstrom and published by Currency. This book was released on 2010-02-02 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEW YORK TIMES BESTSELLER • “A fascinating look at how consumers perceive logos, ads, commercials, brands, and products.”—Time How much do we know about why we buy? What truly influences our decisions in today’s message-cluttered world? In Buyology, Martin Lindstrom presents the astonishing findings from his groundbreaking three-year, seven-million-dollar neuromarketing study—a cutting-edge experiment that peered inside the brains of 2,000 volunteers from all around the world as they encountered various ads, logos, commercials, brands, and products. His startling results shatter much of what we have long believed about what captures our interest—and drives us to buy. Among the questions he explores: • Does sex actually sell? • Does subliminal advertising still surround us? • Can “cool” brands trigger our mating instincts? • Can our other senses—smell, touch, and sound—be aroused when we see a product? Buyology is a fascinating and shocking journey into the mind of today's consumer that will captivate anyone who's been seduced—or turned off—by marketers' relentless attempts to win our loyalty, our money, and our minds.
Download or read book Design Theory written by Pascal Le Masson and published by Springer. This book was released on 2017-04-06 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook presents the core of recent advances in design theory and its implications for design methods and design organization. Providing a unified perspective on different design methods and approaches, from the most classic (systematic design) to the most advanced (C-K theory), it offers a unique and integrated presentation of traditional and contemporary theories in the field. Examining the principles of each theory, this guide utilizes numerous real life industrial applications, with clear links to engineering design, industrial design, management, economics, psychology and creativity. Containing a section of exams with detailed answers, it is useful for courses in design theory, engineering design and advanced innovation management. "Students and professors, practitioners and researchers in diverse disciplines, interested in design, will find in this book a rich and vital source for studying fundamental design methods and tools as well as the most advanced design theories that work in practice". Professor Yoram Reich, Tel Aviv University, Editor-in-Chief, Research In Engineering Design. "Twenty years of research in design theory and engineering have shown that training in creative design is indeed possible and offers remarkably operational methods - this book is indispensable for all leaders and practitioners who wish to strengthen theinnovation capacity of their company." Pascal Daloz, Executive Vice President, Dassault Systèmes
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Download or read book Interculturalism at the crossroads written by Mansouri, Fethi and published by UNESCO Publishing. This book was released on 2017-05-08 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Child Friendly Schools Manual written by and published by UNICEF. This book was released on 2009 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Child-Friendly Schools (CFS) Manual was developed during three-and-a-half years of continuous work, involving the United Nations Children's Fund education staff and specialists from partner agencies working on quality education. It benefits from fieldwork in 155 countries and territories, evaluations carried out by the Regional Offices and desk reviews conducted by headquarters in New York. The manual is a part of a total resource package that includes an e-learning package for capacity-building in the use of CFS models and a collection of field case studies to illustrate the state of the art in child-friendly schools in a variety of settings.
Download or read book From the City to the Desert written by Raffael Beier and published by Logos Verlag Berlin GmbH. This book was released on 2019-08-23 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, large-scale housing and resettlement projects have experienced a renaissance in many developing countries and are increasingly shaping new urban peripheries. One prominent example is Morocco's Villes Sans Bidonville (cities without shantytowns) programme that aims at eradicating all shantytowns in Morocco by resettling its population to apartment blocks at the urban peripheries. Analysing the specific resettlement project of Karyan Central, a 90-year-old shantytown in Casablanca, this book sheds light on both process and outcome of resettlement from the perspective of affected people. It draws on rich empirical data from a structure household survey (n=871), qualitative interviews with different stakeholder, document analysis, and non-participant observation gathered during four months of field research. The author emphasises that the VSB programme, although formally part of anti-poverty and urban inclusion policies, puts primary focus on the clearance of the shantytown. Largely based on ill-informed policy assumptions, stigmatisation, rent-seeking, and opaque implementation practices, the VSB programme interpreted adequate housing in a narrow sense. By showing how social interactions, employment patterns, and access to urban functions have changed because of resettlement, the book provides sound empirical evidence that housing means more than four walls and a roof.
Download or read book Atomic Force Microscopy written by Wesley C. Sanders and published by CRC Press. This book was released on 2019-10-08 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses primarily on the atomic force microscope and serves as a reference for students, postdocs, and researchers using atomic force microscopes for the first time. In addition, this book can serve as the primary text for a semester-long introductory course in atomic force microscopy. There are a few algebra-based mathematical relationships included in the book that describe the mechanical properties, behaviors, and intermolecular forces associated with probes used in atomic force microscopy. Relevant figures, tables, and illustrations also appear in each chapter in an effort to provide additional information and points of interest. This book includes suggested laboratory investigations that provide opportunities to explore the versatility of the atomic force microscope. These laboratory exercises include opportunities for experimenters to explore force curves, surface roughness, friction loops, conductivity imaging, and phase imaging.
Download or read book Adhesion between polymers and concrete Adh sion entre polym res et b ton written by H. R. Sasse and published by Springer. This book was released on 2013-11-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.
