Electrical Machines

This textbook covers the principles and operation of electrical machines, moving from the basic physics of energy conversion to the design and control of specific machine types. It opens with the magnetic and electrical coupling fields that link electrical and mechanical systems, then examines magnetic circuits, modeling methods, and the role of single-fed and double-fed converters.

The middle chapters focus on the magnetic field in the air gap, the relationships among energy, flux, and torque, and the electromotive forces that arise in machines. Direct current machines are introduced along with their modeling, supply, and characteristics. The book then turns to induction machines, covering steady-state behavior and variable-speed operation.

The final sections address synchronous machines, including their mathematical model, steady-state operation, transient behavior, and operation at variable frequency. The text suits students and engineers who want a structured treatment of electromechanical energy conversion.