Bøger af Ion Boldea

Induction Machines Handbook: Steady State Modeling and Performance offers a thorough treatment of steady-state induction machines (IM), the most used electric motor (generator) in rather constant or variable speed drives, forever lower energy consumption and higher productivity in basically all industries, from home appliances, through robotics to e-transport and wind energy conversion.Chapter 1 offers a detailed introduction from fundamental principles to topological classifications and most important applications and power ranges from tens of W to tens of MW.Then individual Chapters 2 and 4 deal in detail with specific issues, such asMagnetic, electric, and insulation materialsElectric windings and their mmfMagnetization curve and inductanceLeakage inductances and resistancesSteady-state equivalent circuit and performanceStarting and speed control methodsSkin and on-load saturation effectsField harmonics, parasitic torques, radial forces, noiseLossesThermal modelingSingle-phase induction machine basicsSingle-phase induction motors: steady-state modeling and performanceFully revised and updated to reflect the last decade's progress in the field, this third edition adds new sections, such asMultiphase and multilayer tooth-wound coil windingsThe brushless doubly fed induction machine (BDFIM)Equivalent circuits for BDFIMControl principles for doubly fed IMMagnetic saturation effects on current and torque versus slip curvesRotor leakage reactance saturationClosed-slot IM saturationThe origin of electromagnetic vibration by practical experiencePM-assisted split-phase cage-rotor IM's steady stateThe promise of renewable (hydro and wind) energy via cage-rotor and doubly fed variable speed generators e-transport propulsion and i-home appliances makes this third edition a state-of-the-art tool, conceived with numerous case studies and timely for both academia and industry.

The numerous numerical design and control examples(with practical specifications) throughout the 23 Chapters of the book allow the reader deep and fast access to a practical but thorough unitary (good for comparisons) methodology in designing and control of LEMs for various applications

This book provides extensive coverage of variable speed generators in distributed generation and renewable energy applications around the world. Numerous design and control examples illustrate the exposition. Fully revised and updated to reflect the last decade¿s worth of progress in the field, the second edition adds material on doubly fed induction generator control under unbalanced voltage sags and nonlinear loads, interior permanent magnet claw-pole-alternator systems, high power factor Vernier permanent magnet (PM) generators, PM-assisted reluctance synchronous motors/generators for electric hybrid vehicles, and more.

This book explores large- and medium-power synchronous generator topologies, steady state, modeling, transients, control, design, and testing. Numerous case studies, worked-out examples, sample results, and illustrations highlight the concepts. Fully revised and updated to reflect the last decade¿s worth of progress in the field, the second edition adds coverage of high-power wind generators with fewer or no permanent magnets (PMs), PM-assisted DC-excited salient pole synchronous generators, autonomous synchronous generators¿ control, line switching parameter identification for isolated grids, synthetic back-to-back load testing with inverter supply, and more.

Based on author Ion Boldea''s 40 years of experience and the latest research, Linear Electric Machines, Drives, and Maglevs Handbook provides a practical and comprehensive resource on the steady improvement in this field. The book presents in-depth reviews of basic concepts and detailed explorations of complex subjects, including classifications and practical topologies, with sample results based on an up-to-date survey of the field. Packed with case studies, this state-of-the-art handbook covers topics such as modeling, steady state, and transients as well as control, design, and testing of linear machines and drives. It includes discussion of types and applications-from small compressors for refrigerators to MAGLEV transportation-of linear electric machines. Additional topics include low and high speed linear induction or synchronous motors, with and without PMs, with progressive or oscillatory linear motion, from topologies through modeling, design, dynamics, and control. With a breadth and depth of coverage not found in currently available references, this book includes formulas and methods that make it an authoritative and comprehensive resource for use in R&D and testing of innovative solutions to new industrial challenges in linear electric motion/energy automatic control.

Alternating current (AC) induction and synchronous machines are frequently used in variable speed drives with applications ranging from computer peripherals, robotics, and machine tools to railway traction, ship propulsion, and rolling mills. This book examines the progress achieved worldwide in vector control since 1969.