Schematic diagram of a dc machine.

Schematic diagram of a brushless dc motor.

Position control of a dc motor.

Schematic diagram of a wound-rotor induction motor.

Structure of a squirrel-cage induction machine.

Principle of operation of squirrel-cage induction motor and generator.

Behavior of a squirrel-cage induction machine (axial view).

Behavior of a squirrel-cage rotor in a two-pole field (developed view).

Distributed windings and fields in a three-phase ac machine.

Magnetic field distributions due to single-phase excitation.

Air gap flux plot due to three-phase excitation.

Sinusoidal space distributions of mmf under balanced three-phase excitation.

Motion of space vectors in a three-phase excitation system.

Space vector decomposition in the synchronous dq frame.

Sinusoidal distributions and corresponding space vector representations.

Space vectors for a balanced three-phase sinusoidal signal.

Animated phasors of an induction motor (Torque-speed curve).

Volt per Hz speed control of an induction motor.

Motion of space vectors in an induction motor operating with step loads

Schematic diagram of a four-phase 8/6 switched-reluctance motor.

Elementary 3-phase round rotor synchronous generator.

Elementary 3-phase 2-pole alternator with corresponding generated voltages.

Synchronization of three-phase ac systems

Animated phasor diagrams of a synchronous motor (Power-angle curve).

Animated phasor diagrams of a synchronous motor (V curve).

Three-phase inverter.

Direct torque control of ac machines.

Still images of windings, fields, and steady-state characteristics of electrical machines.