Electromagnetics for Electrical Machines offers a comprehensive yet accessible treatment of the linear theory of electromagnetics and its application to the design of electrical machines. Leveraging valuable classroom insight gained by the authors during their impressive and ongoing teaching careers, this text emphasizes concepts rather than numerical methods, providing presentation/project problems at the end of each chapter to enhance subject knowledge.
Highlighting the essence of electromagnetic field (EMF) theory and its correlation with electrical machines, this book:
- Reviews Maxwell’s equations and scalar and vector potentials
- Describes the special cases leading to the Laplace, Poisson’s, eddy current, and wave equations
- Explores the utility of the uniqueness, generalized Poynting, Helmholtz, and approximation theorems
- Discusses the Schwarz–Christoffel transformation, as well as the determination of airgap permeance
- Addresses the skin effects in circular conductors and eddy currents in solid and laminated iron cores
- Contains examples relating to the slot leakage inductance of rotating electrical machines, transformer leakage inductance, and theory of hysteresis machines
- Presents analyses of EMFs in laminated-rotor induction machines, three-dimensional field analyses for three-phase solid rotor induction machines, and more
Electromagnetics for Electrical Machines makes an ideal text for postgraduate-level students of electrical engineering, as well as of physics and electronics and communication engineering. It is also a useful reference for research scholars concerned with problems involving electromagnetics.
Introduction. Review of Field Equations. Theorems, Revisited. Laplacian Fields. Eddy Currents in Magnetic Cores. Laminated-Rotor Polyphase Induction Machines. Un-Laminated Rotor Polyphase Induction Machines. Case Studies. Numerical Computation. Appendices.
"… unravels intricacies of the subject in a simple and systematic manner. … one of few books which cover a difficult subject through inquisition and using programmed concept for learning. The authors have spent considerable time in formulating the structure of the book and its contents. I think they have been successful in their attempt. There have been several books on electromagnetic fields, each one having its own flavor. However, the present book is a different attempt to teach the concept of electromagnetic field theory (EMFT), and its application to the theory and design of electrical machines. The contributions of the authors of this book in various research and scientific areas are outstanding. They are academicians who have devoted themselves to the task of educating young minds and inculcating scientific temper amongst them. I must heartily congratulate the authors for the magnificent job they have done."
— Brig. (Dr.) Surjit Pabla, Vice Chancellor, Mangalayatan University, Aligarh, India
"The authors of this book set out to achieve the goal of presenting electromagnetics for electrical machines in a simple and systematic manner. I think they achieve that goal. They reduce Maxwell’s equations to Laplace’s equation, Poisson’s equation, wave equation, and eddy current equation and apply them to electrical machines."
— Matthew Sadiku, Prairie View A&M University
"I particularly value the approach taken of developing accurate theoretical electromagnetic models for several electrical machine structures. Traditional approaches of using lumped element models for machine parts, and then trying to modify the resulting equivalent network by taking into account the effect of these elements having non-zero physical size in a piece-meal fashion do not develop the user’s basic comprehensive insight into all aspects of the electromagnetic fields which can have some effect on machine behavior."
— Philip H. Alexander, Electrical and Computer