NUMERICAL-FIELD ANALYSIS OF TEMPORAL FUNCTIONS AND HARMONIC COMPOSITION OF EMF IN WINDINGS OF A THREE-PHASE ASYNCHRONOUS MOTOR
ЧИСЛЕННО-ПОЛЕВОЙ АНАЛИЗ ВРЕМЕННЫХ ФУНКЦИЙ И ГАРМОНИЧЕСКОГО СОСТАВА ЭДС В ОБМОТКАХ ТРЕХФАЗНОГО АСИНХРОННОГО ДВИГАТЕЛЯ

V.I. Milykh
2018 Tekhnichna Elektrodynamika  
The principles and results of the numerical-field determination and harmonic analysis of EMF in windings of three-phase asynchronous motors with a short-circuited winding of the rotor have presented. This has realized in dynamics by multi-position calculations of the rotating magnetic field with the finite element method by the FEMM software environment. Calculations have automated by the control program in the algorithmic language Lua. The analysis has carried out for the phase winding of the
more » ... ase winding of the stator and various rods of the rotor winding under load conditions and artificial idle modes. The basic functions to determine the temporal functions of the EMF are analogous functions of magnetic flux linking obtained in discrete numerical form. The transition 1 / 4 2018 N3 s7 to EMF has carried out through the expansion of certain functions into harmonic series and also in finite-difference form. To test the presented method of EMF a 15 kW motor has used analysis. The complex nature of the temporal functions of EMF and their wide harmonic spectra have revealed. References 17, figures 11, tables 2.
doi:10.15407/techned2018.03.056 fatcat:tzuf4tuc3ncxjmo2q4ziiipyey