MICRO-314: Actuators and Electromagnetic systems II

Lectures in this course (34)

Explains the DC motor operation with a constant voltage power supply.

Delves into the effects of varying voltage and current limitation on a DC motor.

Explains coil excitation in a DC motor and its torque characteristics.

Demonstrates a DC motor with separate excitation and explains why it accelerates unexpectedly when the excitation is cut off.

Explores powering a DC motor with AC to create a universal motor and demonstrates practical examples.

Explains the conditions for obtaining a couple out of phase with the stator field in an asynchronous motor.

Delves into the construction of an asynchronous motor, emphasizing stator and rotor structures and the efficiency of different winding methods.

Explains slip, rotating field, equivalent windings, and voltage equations in asynchronous motors.

Covers the voltage equations and reported quantities of an asynchronous motor.

Demonstrates an asynchronous motor performance analysis using an oscilloscope.

Covers the power balance in an induction motor and the expression of torque.

Covers the analysis of torque in asynchronous motors and the start-up and stall processes.

Explores practical examples of asynchronous motors in aviation, ski lifts, and household heating systems.

Covers voltage/frequency variation in big engines and vector control for synchronous and asynchronous motors.

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