MATHEMATICAL MODEL OF POWER EFFICIENCY OF INDUCTION DRIVES, WORKINGS FROM VOLTAGE CONVERTERS

The paper deals with the development of mathematical models aimed at assessing and, prognosis energy efficiency of induction motors, powered by the AC voltage at multifactorial variations operational parameters. Considerable attention is paid to the development of methods for determining changes in the electrical losses in the motor, depending on the method and parameters of the regulation of the supply voltage. The studies and the predicted change in energy efficiency of the induction motor with the change in the mode of regulation and the parameters of the supply voltage, and the type of load. Analysis of the results allows to develop recommendations aimed at improving the energy efficiency of engines by combining purposeful change of regime parameters of the voltage regulators. To form the generalized models of energy efficiency induction motors have been developed based and effective plans based on the methods of experimental design.