ABSTRACT
Operation of different induction motors as a part of controlled - speed electric drives, which carry out the same engineering problem, taking into account turning on of such devices as the transformer and the reducer is examined. A variability of parameters of equivalent circuits of the motors, linked with a modification of magnitudes and frequencies of voltage feeding the motors, and also with saturation of magnetic circuits and displacement of currents in windings of rotors is considered. Comparison of motors characteristics in static and dynamic regimes is carried out. Energy, weight, size and cost parameters are defined. Modeling of a thermal state of motors in static and dynamic regimes is carried out. The analysis of vibroacoustic performance of the motors is made at operation in the certain circuit design of the electric drive on the given control range: Mechanical indexes, characterizing a mechanical state of an induction motor are observed and compared.
