Influence of magnetic circuit saturation and skin effects on the adjustable induction motor characteristics

As a result of frequency control of the AIM research in a dynamic mode it is established, that while taking into account magnetic conductor saturation and skin effect current in a rotor winding faults while calculating current throws for a control mode U/f = const decreased about 6 compared with 13% without taking into account and, till 3 compared with 17% in a regulation law with a rotor constant flux linkage Ψ2 = const. Results of mathematical modeling in the course of which power indicators (efficiency and power factor) of the adjustable induction motor defined in transitional regimes at various laws of frequency regulation are experimentally confirmed.