The AC Motor Principle and 3D Animation Video

An educational video regarding the AC Motor Principle and 3D Animation demonstration illustrates the operation of an AC motor

The Motor Principle : Electromagnetism
An educational video clip regarding the motor principle in electromagnetism

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Induction : Electromagnetism
An educational video clip regarding induction through electromagnetism




Electric Motor Principle
video describes the components and how electric AC motor work



AC Electronic Motors
AC electronic motorsAC electronic motors are synchronous motors based on the principle of frequency control with self-timing. The essence of the principle is to control the stator's magnetic field vector according to the rotor position.Such motors are sometimes called commutatorless DC motors as the controller of such motor is usually powered from DC voltage while its rotor speed depends on supply voltage.So we can see that such motor works as a direct current motor. Its design is similar to that of AC synchronous motor. Its magnetic rotor rotates in a stator with a three-phase winding. Supply voltage of the motor windings is formed in accordance with the rotor position.A commutator is used in DC motors for this purpose while AC electronic motors have a semiconductive commutator for that.The motor has the following operating principle. The controller commutates stator windings so that the stator's magnetic field vector is always perpendicular to the rotor's magnetic field vector.By using pulse-duration modulation the controller regulates current which flows through the windings. That means it regulates the stator's magnetic field vector and thus the moment affecting the rotor.The sign at the angle between the vectors determines direction of the moment affecting the rotor. Such motors were designed to improve properties of DC motors. Their main advantage is that they don't have rotary contacts. This significantly increases their lifespan. Such types of motors find various applications - from house appliances to rail transport.



  Electric Motors and Drives, Second Edition 
Written for non-specialist users of electric motors and drives, this book explains how electric drives work and compares the performance of the main systems, with many examples of applications. The author's approach - using a minimum of mathematics - has made this book equally popular as an outline for professionals and an introductory student text.

3D Animation AC Motor
3D Animation video shows the components and operation of a motor.



AC Motor Animation Video
video shows the components of AC induction motor



Operating an AC Three-Phase Induction Motor
This Demonstration illustrates the operation of an induction motor. You can create a voltage imbalance or a phase shift in the three-phase source. This will result in a change in speed of the rotor that represents a change in developed torque.