L'électronique de puissance a connu un développement important en grande partie grâce à des améliorations technologiques conséquentes sur les composants actifs de puissance mais aussi sur les techniques de câblages. Les performances ainsi acquises en terme de puissance volumique se paient malgré tout par des problèmes de compatibilité électromagnétique apparaissant au sein des convertisseurs statiques. Ces problèmes se traduisent avant tout par une interaction entre la partie puissance et la partie commande du convertisseur. Au lieu de résoudre ces problèmes une fois le prototype effectué, il est souhaitable de les considérer dès la conception. Le processus de l'interaction puissance-commande est mis en évidence par une décomposition désormais classique : source, chemin et victime. Chacun de ces éléments est ensuite modélisé. Il est ainsi possible d'effectuer une simulation fine des convertisseurs statiques qui intègre les éléments parasites introduits par le caractère non idéal des différents éléments. Si la simulation fine est un objectif important, elle ne permet cependant pas de dégager des règles de conception. En effet, dans le processus de la simulation fine, on part de données technologiques (telles que la géométrie du circuit, le choix des composants actifs...). Ce type de données est mis sous forme de modèles dont le comportement temporel est issu de la simulation. La méthodologie consiste, à partir d'un civière de bon fonctionnement et en s'appuyant sur la simulation fine, d'obtenir des contraintes sur certains des paramètres des modèles. Ces contraintes constituent en fait des règles de conception qui peuvent être ensuite insérées dans un système expert. Cette méthodologie est ici appliquée pour tenter de résoudre certains problèmes d'interaction puissance-commande dans les convertisseurs statiques. Cette opération est possible par l'élaboration de modèles inversibles donc simplifiés du processus de l'interaction puissance-commande. La recherche de règles de conception selon d'autres critères que l'interaction puissance-commande est aussi envisageable à l'aide de cette méthodologie.

This book relates the recent developments in several key electrical engineering R&D labs, concentrating on power electronics switches and their use. The first sections deal with key power electronics technologies, MOSFETs and IGBTs, including series and parallel associations. The next section examines silicon carbide and its potentiality for power electronics applications and its present limitations. Then, a dedicated section presents the capacitors, key passive components in power electronics, followed by a modeling method allowing the stray inductances computation, necessary for the precise simulation of switching waveforms. Thermal behavior associated with power switches follows, and the last part proposes some interesting prospectives associated to Power Electronics integration.

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.

Scientists and engineers around the world are striving to develop new sources of energy. One source, ocean thermal energy conversion, has virtually unlimited potential. It is based on techniques that exploit heat produced by solar energy that may, in turn, be used to produce fuel and electricity. This book reviews the status and background of this promising technology. William H. Avery is the leading expert in this field, and his co-author Chih Wu is an authority on heat engine performance. Together they describe the workings of an OTEC power plant and how such a system might be implemented as part of a futuristic national energy strategy. The book is the only detailed presentation of basic OTEC technology, its testing and improvement. It is based on extensive development initiatives undertaken internationally during the period from 1974 through 1985. The book offers a thorough assessment of the economics of OTEC in comparison with other energy production methods. It will be of interest to a wide range of professionals in energy research, power and mechanical engineering, and to upper-level undergraduate students taking courses in these fields.

Random waves are the most important constituent of the sea environment. They make the design of maritime structures quite different from that of structures on land. In this book, the concept of randomness in waves for the design of breakwaters, seawalls, and harbor structures is fully explored for easy comprehension by practicing engineers. Theoretical aspects are also discussed in detail for further studies by graduate students and researchers. Several additions have been made to this second edition, including a new chapter on extreme wave statistics.

This book addresses a range of real-world issues including industrial activity, energy management, education, business and health. Today, technology is a part of virtually every human activity, and is used to support, monitor and manage equipment, facilities, commodities, industry, business, and individuals’ health, among others. As technology evolves, new applications, methods and techniques arise, while at the same time citizens’ expectations from technology continue to grow. In order to meet the nearly insatiable demand for new applications, better performance and higher reliability, trustworthiness, security, and power consumption efficiency, engineers must deliver smart innovations, i.e., must develop the best techniques, technologies and services in a way that respects human beings and the environment. With that goal in mind, the key topics addressed in this book are: smart technologies and artificial intelligence, green energy systems, aerospace engineering/robotics and IT, information security and mobile engineering, IT in bio-medical engineering and smart agronomy, smart marketing, management and tourism policy, technology and education, and hydrogen and fuel-cell energy technologies.