Upwind Design Limits And Solutions For Very Large Turbines

This book provides a detailed, global examination of energy transitions, supplying a long-term historical perspective, an up-to-date assessment of recent and near-term advances in energy production technology and implementation, and an explanation of why efforts to limit global warming and to shift away from fossil fuels have been gradual. Based on the best international and national statistical sources, the second edition of Energy Transitions: Global and National Perspectives supplies an in-depth evaluation of how economies and nations around the world are striving to move away from traditional energy sources, the unfolding decarbonization process, and problems with intermittent energies and national transition plans. It supplies readers with a clear introduction to the basic properties of energy systems and key concepts of their appraisal, puts energy transition patterns in long-term historical perspective, and looks at the energy transition in eight of the world's leading economies. The last chapters focus on the advances in the decarbonization of the global energy supply and consider how the energy transition will continue in the coming decades. This fully updated and substantially expanded edition addresses the many new developments affecting energy supply, such as the recent expansion of hydraulic fracturing, oil price fluctuations, the Fukushima nuclear power plant catastrophe, advances in solar and wind generation, adoption of combined cycle gas turbines, and increased availability of electric cars. The coverage highlights the differences in the pace of transitions in various countries, thereby providing a complete and accurate picture of the current state of energy development in different parts of the world. The book serves as an invaluable resource for students as well as for anyone interested in a realistic appraisal of the current state of energy transitions in various nations and regions and the likely future development of the global energy supply.

Wind turbine gearboxes present major reliability issues, leading to great interest in the current development of gearless direct-drive wind energy systems. Offering high reliability, high efficiency and low maintenance, developments in these direct-drive systems point the way to the next generation of wind power, and Electrical drives for direct drive renewable energy systems is an authoritative guide to their design, development and operation. Part one outlines electrical drive technology, beginning with an overview of electrical generators for direct drive systems. Principles of electrical design for permanent magnet generators are discussed, followed by electrical, thermal and structural generator design and systems integration. A review of power electronic converter technology and power electronic converter systems for direct drive renewable energy applications is then conducted. Part two then focuses on wind and marine applications, beginning with a commercial overview of wind turbine drive systems and an introduction to direct drive wave energy conversion systems. The commercial application of these technologies is investigated via case studies on the permanent magnet direct drive generator in the Zephyros wind turbine, and the Archimedes Wave Swing (AWS) direct drive wave energy pilot plant. Finally, the book concludes by exploring the application of high-temperature superconducting machines to direct drive renewable energy systems. With its distinguished editors and international team of expert contributors, Electrical drives for direct drive renewable energy systems provides a comprehensive review of key technologies for anyone involved with or interested in the design, construction, operation, development and optimisation of direct drive wind and marine energy systems. An authorative guide to the design, development and operation of gearless direct drives Discusses the principles of electrical design for permanent magnet generators and electrical, thermal and structural generator design and systems integration Investigates the commercial applications of wind turbine drive systems

This book provides a state-of-the-art review of floating offshore wind turbines (FOWT). It offers developers a global perspective on floating offshore wind energy conversion technology, documenting the key challenges and practical solutions that this new industry has found to date. Drawing on a wide network of experts, it reviews the conception, early design stages, load & structural analysis and the construction of FOWT. It also presents and discusses data from pioneering projects. Written by experienced professionals from a mix of academia and industry, the content is both practical and visionary. As one of the first titles dedicated to FOWT, it is a must-have for anyone interested in offshore renewable energy conversion technologies.

This book addresses the use, operation and maintenance of new renewable energy systems, taking into account their integration in the current electrical markets and in the new emergent uses of energy. The book is based on practical experiences which present different perspectives about what occurs once an energy production plant based on sources of renewable energy is in production. Questions to be addressed include: how the energy produced is integrated into the current system of energy production, what is its consideration in the electrical market, what the impact is on society, how differential the strategies of operation and maintenance are with respect to conventional systems of energy production, etc.

This unique volume on wind energy features contributions from the world’s leading research and development pioneers in the field of renewable energy. It discusses advances in offshore wind technology, grid-connected systems, grid stabilization and wind turbine design and highlights. Written from an international perspective, chapters focus on the status of wind energy in various regions and countries across the globe, outlining the positive impact its implementation has had on delaying the catastrophic effects of climate change.