Open AccessTHERMAL MODEL OF THE "INDUCTION GENERATOR–INDUCTION MOTOR" SYSTEM WITH NON–SYMMETRY IN THE STATOR WINDINGS
Author(s) -
Vladimir Chenchevoi,
AUTHOR_ID,
Iu. Zachepa,
Oleksii Chornyi,
Rostyslav Yatsiuk,
Olga Chencheva,
A. D. Nekrasov,
I. Kropyvnyi
Publication year - 2021
Publication title -
elektromehanìčnì ì energozberìgaûčì sistemi
Language(s) - English
Resource type - Journals
eISSN - 2074-9937
pISSN - 2072-2052
DOI - 10.30929/2072-2052.2021.2.54.47-55
Subject(s) - stator , induction generator , induction motor , asynchronous communication , generator (circuit theory) , control theory (sociology) , electromagnetic coil , rotor (electric) , computer science , voltage , electrical engineering , engineering , power (physics) , physics , telecommunications , control (management) , quantum mechanics , artificial intelligence
Purpose. Development of the IG model for estimation of influence of variations of parameters of the generator on quality of process of self–excitation at definition of the basic and boundary operating modes and system of initial excitation at invariable parameters of the generator. Result. The article presents studies of the system "asynchronous generator-asynchronous motor" with parametric asymmetry to determine the quality of generated electricity in load modes of operation on a mathematical model. The assessment of the thermal state in steady-state conditions was carried out using an equivalent thermal equivalent circuit. Thermal transients were investigated when starting an asynchronous electric motor from an autonomous power source based on an asynchronous generator. On a thermal mathematical model, a study of the influence of the asymmetry of the output voltage and its deviation from the nominal value on the heating of the connected asynchronous motor was carried out. A regression model has been developed for studying the operating conditions of electricity consumers when powered by an asynchronous generator with an asymmetry of the stator windings. Practical value. The use of the obtained equations will make it possible to determine the most rational combination of factors affecting the heating of the stator windings of asynchronous machines, at which they will not overheat in excess of the maximum permissible temperature values of the corresponding insulation classes. Figures 9, tables 2, references 23.