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The features of taking into account the change in the properties of the main structural units of induction motors with a high mean-timebetween-failure when identifying their electromagnetic parameters are considered. It enabled the practical research and substantiation of the method of using the obtained results in systems of the industrial variable-frequency electric drive. The efficiency of the...
The paper describes the method for indirect determination of the torque, power and energy indices of an induction motor shaft. A developed research laboratory stand is presented. It enables load testing of an induction motor with a possibility of direct measuring the torque, speed, currents and voltages of the researched motor. The analysis of the experimental research of the method for indirect determination...
One of the reasons for deterioration of the efficiency of operation of a variable-frequency electric drive (VFED) with scalar control consists in occurrence of asymmetry of induction motor (IM) parameters. Apart from appearance of variable components of consumed power and electromagnetic torque, such asymmetry causes deterioration of operating mode of an autonomous voltage inverter (AVI). Assessment...
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