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Publications in Scientific Journals:

T. Wolbank, R. Wöhrnschimmel, H. Hauser:
"Transient magnetic modeling and measurements of sensorless controlled induction machines";
IEEE Transactions on Magnetics (invited), 38 (2002), 5; 3279 - 3284.



English abstract:
For the design of modern standard ac machines it is sufficient to consider only the fundamental wave behavior of the machine. This is usually achieved by means of standard calculation programs and in some cases even finite element calculation. However, in some applications such as high speed drives, or speed sensorless drives both, the transient electrical behavior of the machine as well as the transient magnetical behavior including hysteresis of the lamination are important and have thus to be taken into account in the design process of the machine. On modern computers finite element calculation would take an extensive amount of calculation time even if only the transient electrical behavior is considered. The only acceptable way is thus to combine a transient magnetic simulation with an electrical model of the machine. One important fact in this combination is the estimation of the different electrical, mechanical and magnetical parameters of the resulting simulation model. In this paper a combined transient electrical and magnetical model of an induction machine is shown and the determination of the different model parameters from measurable parameters of the lamination material as well as the geometry of the lamination and winding scheme is presented. Thus it is possible to cover even transient hysteresis effects in inverter fed machines

Created from the Publication Database of the Vienna University of Technology.