Basics of Electric Drives Systems

The characteristics of importance are: torque/speed relation, efficiency, reactive power, voltage control, frequency control, starting current/power, methods to control starting current.

The treated machines are:

• Induction machines (asynchronous electric motors)
• Synchronous machines (as motor and generator)

Understand principles and explain main characteristics of the following electronic conversion:

• DC/DC converters (choppers)
• DC/AC converters (inverters)
• AC/DC converters (rectifiers)
• AC/AC converters
• The characteristics of importance are: input/output characteristics, control inputs, voltage/frequency control; cos phi
• Understand, explain and specify electric drive syst

Anyone interested to learn this course.

Certificate

• Understand mechanical system requirements for Electric Drive
• Understand and apply passive network elements (R, L, C), laws of Kirchhof, Lorentz, Faraday
• Understand and apply: phasors for simple R,L,C circuits
• Understand and apply real and reactive power, rms, active and reactive current, cos phi
• Describe direct current (DC), (single phase) alternating current (AC) and (three phase) alternating current systems, star-delta connection
• Understand the principle of switch mode power electronic converters, pole as a two quadrant and four quadrant converter
• Understand principles of magnetic circuits, inductances and transformers

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