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

The aims of this work are to show the influence of saturation and the rotor skin effect current on the characteristics of an adjustable induction motor (AIM). The coefficient of the voltage increase is determined in order to realize the frequency control laws with constant flux. The regulation chara...

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Bibliographic Details
Published in:International journal of hydrogen energy 2017-11, Vol.42 (48), p.29006-29013
Main Authors: Petrushin, Viktor, Bendahmane, Boukhalfa, Yahiaoui, Belkacem, Yakimets, Andrey
Format: Article
Language:English
Subjects:
Efficiency
Frequency control
Induction motor
Power factor
Saturation
Skin effect
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Summary:The aims of this work are to show the influence of saturation and the rotor skin effect current on the characteristics of an adjustable induction motor (AIM). The coefficient of the voltage increase is determined in order to realize the frequency control laws with constant flux. The regulation characteristics of the induction motor are obtained for developed control laws. Great advantages of a first proposed law of frequency control were revealed. The determination of the equivalent scheme parameters taking account the saturation of the magnetic circuit and the skin effect of the rotor current guarantee the accuracy of calculation of the adjustable induction motor energy indices. 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. •We analyze the dynamic characteristics and power indicators of the adjustable induction motor.•The unsteady modes are defined at various laws of frequency regulation.•Influence of saturation and skin effects on the adjustable induction motor characteristics is established.•We confirmed results of simulation by experiment.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2017.07.221