Анализ механических характеристик короткозамкнутых асинхронных электродвигателей методами теории электромагнитного поля

Abstract

A mathematical model for analysis of mechanical characteristics of asynchronous squirrelcage motors based on calculations of electromagnetic moment via an electromagnetic field tension tensor method is formulated. The model takes into account action of rotor currents allowing for the currents displacement from the rotor bulk rods caused by both displacement effect and the rotor movement effect. With this model, numerical calculations of electromagnetic moment are made and patterns of induced current distribution in the rods are obtained.