Electric MachinesThe two major broad applications of electrical energy are information processing and energy processing. Hence, it is no wonder that electric machines have occupied a large and revered space in the field of electrical engineering. Such an important topic requires a careful approach, and Charles A. Gross' Electric Machines offers the most balanced, application-oriented, and modern perspective on electromagnetic machines available. Written in a style that is both accessible and authoritative, this book explores all aspects of electromagnetic-mechanical (EM) machines. Rather than viewing the EM machine in isolation, the author treats the machine as part of an integrated system of source, controller, motor, and load. The discussion progresses systematically through basic machine physics and principles of operation to real-world applications and relevant control issues for each type of machine presented. Coverage ranges from DC, induction, and synchronous machines to specialized machines such as transformers, translational machines, and microelectromechanical systems (MEMS). Stimulating example applications include electric vehicles, wind energy, and vertical transportation. Numerous example problems illustrate and reinforce the concepts discussed. Along with appendices filled with unit conversions and background material, Electric Machines is a succinct, in-depth, and complete guide to understanding electric machines for novel applications. |
Contents
Basic Electromagnetic Concepts | 9 |
Problems | 39 |
Problems | 75 |
Problems | 108 |
Control of AC Motors | 161 |
Problems | 195 |
Balanced Operation | 235 |
The General Coupled | 287 |
Problems | 323 |
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Common terms and phrases
A₁ air gap analysis applications armature balanced three-phase capacitor circuit model circuit of Figure coil compute Consider constant core cos(wt DC machine DC motor DC source defined delta connection Determine device diode drive E₁ efficiency electrical EMAP energy Equation equivalent circuit ferromagnetic frequency harmonic Hence hysteresis I₁ IGBT induction machine induction motor inductor input lagging linear load voltage MagC magnetic circuit magnetic field maximum mechanical mode motor coordinates operation output Pdev phase phasor phasor diagram plot pole positive power factor primary q-axis R₁ rated reactance resistance rev/min Rotational loss rotor machines sequence shaft shown in Figure single-phase sinusoidal slots stator stator windings switch synchronous machine synchronous speed T₁ Tdev terminals thyristor torque torque-speed characteristics transformer V₁ V₂ values waveform winding loss X₁ zero
Popular passages
Page 440 - The General Theory of Alternating Current Machines, London: Chapman and Hall 1975. 2. RG Harley, SJM Limebeer, and E. Chericozzi "Comparative study of saturation methods in synchronous machine models,
Page 442 - Kron, G., A Short Course in Tensor Analysis for Electrical Engineers. New York: Wiley, 1942.