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Electric Machinery Fundamentals by Stephen Chapman

Electric Machinery Fundamentals continues its accessible, student-friendly coverage of the important topics in the field. Chapman's clear writing persists in being one of the top features of the book. The use of MATLAB has been enhanced and many new problems have been added and remaining ones modified in this edition.

The first edition of this book stated that de motors were the method of choice for demanding variable-speed applications. 11131 statement is no longer true today. Now, the system of choice for speed control applications is most often an ac induction motor with a solid-state motor drive. DC motors have been largely relegated to special-purpose applications where a de power source is readily available, such as in automotive electrical systems.

The third edition orthe book was extensively restructured to reflect these changes. 1lle material on ac motors and generators is now covered in Chapters 4 through 7, before the material on dc machines. In addition, the dc machinery coverage was reduced compared to earlier editions. 1lle fourth edition continues with this same basic structure. Chapter I provides an introduction to basic machinery concepts, and concludes by applying those concepts to a linear dc machine, which is the simplest possible example of a machine. Glapte r 2 covers transformers, and Chapter 3 is an introduction to solid-state power electronic circuits. The material in Chapter 3 is optional, but it supports ac and dc motor control discussions in Chapters 7, 9, and 10.

After Chapter 3, an instructor may choose to teach either dc or ac machinery first. Chapters 4 through 9 cover ac machinery, and Chapters 8 and 9 cover dc machinery. 1llese chapter sequences have been made completely independe nt of each other, so that instructors can cover the material in the order that best suits their needs. For example, a one-semester course with a primary concentration in
ac machinery might consist of parts of Chapters I to 7, with any remaining time devoted to dc machinery. A one-semester course with a primary concentration in dc machinery might consist of parts of Chapters I, 3, 8, and 9, with any remaining time devoted to ac machinery. Chapter 10 is devoted to single- phase and special-purpose motors, such as universal motors, stepper motors, brushless dc motors, and shaded-pole motors.

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