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Basic laws of the alternating current circuit

Specialist area:Electrical engineering
Application:Power grid, low-loss transmission, electrical information technology, radio technology

Lecturer:Prof. Dr.-Ing. Hans-Peter Beck
Keywords:Introduction:
AC quantities, terms, reasons for using sinusoidal quantities, AC-voltage generation, waveform, phase angle, fields of application of AC-voltage technology

Pointer representation of sinusoidal quantities:
Characteristic values of pointers, linking time and pointer diagram, calculation example: pointer addition

Simple sinusoidal circuit:
(derivation of active and reactive power) with ohmic resistance (derivation of the rms value), with inductive resistance, with capacitive resistance, with a general passive two-pole, overview “Passive two-pole”

Complex sinusoidal circuit calculation:
Complex impedance operators, complex mesh theorem, complex nodal-point theorem, summary of calculation methods

Resonant circuits:
Nature of resonant circuits, analogy to a mechanical oscillator, energy consideration, characteristic values, parallel resonant circuit, series resonant circuit
Script:Electrical Engineering for Engineers (Part 1)
Chapter, pages:Ch. 6, p. E1/WS 1-36 (WS 2010/11)
Recording:WS 2004/05 – videos freely available:
Lecture 10 11 Jan 2005
Lecture 11 18 Jan 2005
Lecture 12 25 Jan 2005
Total running time:4 h 37 min