This handbook deals with the asynchronous machine in its close environment. It was born from a reflection on this electromagnetic converter whose integration in industrial environments takes a wide part. Previously this type of motor operated at fixed speed, from now on it has been integrated more and more in processes at variable speed. For this reason it seemed useful, or necessary, to write a handbook on the various aspects from the motor in itself, via the control and while finishing by the diagnosis aspect. Indeed, an asynchronous motor is used nowadays in industry where variation speed and reliability are necessary. We must know permanently for the sensitive systems, the state of process and to inform the operator of the appearance of any anomaly and its severity.
In this book a general matrix-based approach to modeling electrical machines is promulgated. The model uses instantaneous quantities for key variables and enables the user to easily take into account associations between rotating machines and static converters (such as in variable speed drives). General equations of electromechanical energy conversion are established early in the treatment of the topic and then applied to synchronous, induction and DC machines. The primary characteristics of these machines are established for steady state behavior as well as for variable speed scenarios. Important new applications for this technology (such as wind turbines, electric propulsion systems for large ships, etc.) are addressed and the book is illustrated with a large number of informative and detailed photographs, provided by various companies at the leading edge of research and applications in the field.
In-depth coverage of variable income annuities With trillions of dollars in retirement savings assets, the tens of millions of Americans on the precipice of retirement need to convert these savings into retirement income. The fact that variable income annuities (VIAs) generate maximum lifetime income with zero probability of outliving it has spurred the need for more information about VIAs. The Handbook of Variable Income Annuities is by far the most comprehensive source of information on this topic. This book thoroughly describes the most important principles of optimal asset liquidation and demystifies VIA mechanics, so readers can gain a high comfort level with this important financial instrument. Interestingly and clearly, The Handbook of Variable Income Annuities explains the mathematical pricing of variable income annuities, expected rates of return, taxation, product distribution, legal aspects, and much more. Jeffrey K. Dellinger (Fort Wayne, IN), a Fellow of the Society of Actuaries and a member of the American Academy of Actuaries, has over 25 years experience in the financial services sector. He advises institutions on retirement income optimization, products, and markets.
The developments of electrical machines are due to the convergence of material progress, improved calculation tools, and new feeding sources. Among the many recent machines, the authors have chosen, in this first book, to relate the progress in slow speed machines, high speed machines, and superconducting machines. The first part of the book is dedicated to materials and an overview of magnetism, mechanic, and heat transfer.