Open AccessThe Mayr-Pentegov Model of Electric Arc with Selected Static Current-Voltage Characteristics
Author(s) -
A. Sawicki
Publication year - 2020
Publication title -
biuletyn instytutu spawalnictwa w gliwicach/biuletyn instytutu spawalnictwa
Language(s) - English
Resource type - Journals
eISSN - 2300-1674
pISSN - 0867-583X
DOI - 10.17729/ebis.2020.3/6
Subject(s) - current (fluid) , arc (geometry) , voltage , function (biology) , electric current , electric arc , set (abstract data type) , mathematics , physics , computer science , electrical engineering , engineering , geometry , electrode , quantum mechanics , evolutionary biology , biology , programming language
The basic properties of the Mayr-Pentegov mathematical model of the electric arc were described. A set of generalized functions has been selected to approximate static voltage-current characteristics. On their basis, derivatives of the conductance function relative to the squared current, which are used to calculate the non-linear damping function, were determined. Families of static characteristics dependent on parameters of approximating functions are presented. As a result of the simulations of processes in the circuit with the electric arc model, the family obtained dynamic voltage-current characteristics. By using wide ranges of parameter changes, the usability of the developed model using various approximations of static characteristics was demonstrated.