Electric machines, space vectors, and magnetic field distributions in motion

 

1.     Schematic diagram of a dc machine.

2.     Schematic diagram of a brushless dc motor.

3.     Schematic diagram of a wound-rotor induction motor.

4.     Structure of a squirrel-cage induction machine.

5.     Schematic diagram of a squirrel-cage induction machine.

6.     Behavior of squirrel-cage rotor in a two-pole field.

7.     Sinusoidally distributed windings in a three-phase ac machine.

8.     Magnetic field distribution due to single-phase excitation.

9.     Magnetic field distribution due to three-phase excitation.

10.      Air gap flux plot due to three-phase excitation.

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

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

13.      Sinusoidal distributions and corresponding space vector representations.

14.      Rotary motion of space vectors in various reference frames.

15.      Steady-state characteristics of an induction motor.

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

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

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

19.      Transient stability of a synchronous machine described by voltage space vectors.

 

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