A Few Remarks on the Energy Transfer Analyses During a Time Less than Period T for Voltage and Current Waveforms in Electrical Circuits

Marek T. Hartman    https://orcid.org/0000-0001-9120-2449     

1

Gdynia Maritime University, Morska 81-87, 81-225 Gdynia, Poland, Faculty of Electrical Engineering,
e-mail: m.hartman@we.umg.edu.pl

Abstract: 

According to the definition the effective value of voltage V is equal to Vrms as to the mean value of u(t) during the energy transfer time T or kT, where k may be 1, 2, 3, 4 etc. However, in power electronics circuits (e.g. rectifiers, choppers, converters, inverters) the energy transfer time, Δt, in many situations is less than the functions period, T (Δt < T). In such a situation the author asks a question – how can we calculate the effective value of voltage V?

Keywords: 
energy transfer time, effective voltage, effective current, Fryze’s concept
Issue: 
123
Pages: 
32
39
Doi: 
10.26408/123.03
Submitted: 
22.03.2022
Accepted: 
11.04.2022
Published: 
30.09.2022
Download full text in pdf: 
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This article is an open access article distributed under a Creative Commoms Attribution (CCBY 4.0) licence

References: 

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Fryze St., 1933, Elektrotechnika ogólna. T3 prądy zmienne. Cz. I, Ogólne rozważania o prądach zmiennych, Komisja Wydawnicza Kół Naukowych i Towarzystwa Bratniej Pomocy Studentów Politechniki Lwowskiej, Lwów (in Polish).

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Lyon W.V*, 1935, Discussion to the Paper “Definitions of Power and Related Quantities” by H.L. Curtis and F.B. Silsbee, Electrical Engineering.

* Based on the paper: Adăscăliţei, A.A., Emanuel, A.E., Evolution of the Electric Power Components Definitions, 2015, Annals of the University of Craiova, Electrical Engineering series, no. 39.

Citation pattern: Hartman M.T., A Few Remarks on the Energy Transfer Analyses During a Time Less than Period T for Voltage and Current Waveforms in Electrical Circuits, Scientific Journal of Gdynia Maritime University, No. 123, pp. 32-39, 2022

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