Models for induction machines with magnetic saturation of the main flux path

A novel nonlinear pi -model for an induction machine operating in magnetic saturation has been developed. It is based on a magnetic circuit model of a rotor-stator tooth pair, with nonlinear elements representing the saturation in the rotor and in the stator. The model of a tooth pair is extended to a model of the machine by assuming an infinite number of infinitesimal teeth. The model is compatible with the Blondel-Park transformation. Experimental measurements on a wound rotor machine confirm the model. Operating conditions for optimal efficiency at high torque levels requiring operation in saturation are computed with the model. >

[1]  R. D. Lorenz,et al.  Saturation effects in field-oriented induction machines , 1990 .

[2]  Charles R. Sullivan,et al.  Modeling the Effects of Magnetic Saturation on Electrical Machine Control Systems , 1992 .

[3]  J. E. Brown,et al.  Cross-Saturation in Smooth-Air-Gap Electrical Machines , 1986, IEEE Power Engineering Review.

[4]  K. Idir,et al.  Modeling and performance of linear induction motor with saturable primary , 1991, Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting.

[5]  Mats Alaküla,et al.  Field-oriented control of saturated induction machines , 1990 .

[6]  E. Levi,et al.  Saturation compensation schemes for vector controlled induction motor drives , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[7]  Russel J. Kerkman.  Steady-State and Transient Analyses of an Induction Machine with Saturation of the Magnetizing Branch , 1985, IEEE Transactions on Industry Applications.

[8]  J. M. D. Murphy,et al.  Power Electronic Control of Ac Motors , 1988 .

[9]  P. Vas.  Vector control of AC machines , 1990 .

[10]  Werner Leonhard,et al.  Control of Electrical Drives , 1990 .

[11]  R. D. Lorenz,et al.  Selection of Flux Level in Field-Oriented Induction Machine Controllers with Consideration of Magnetic Saturation Effects , 1987, IEEE Transactions on Industry Applications.

[12]  P. Vas,et al.  A Method of Including the Effects of Main Flux Path Saturation in the Generalized Equations of A.C. Machines , 1983, IEEE Power Engineering Review.

[13]  Emil Levi,et al.  FIELD-ORIENTED CONTROL OF INDUCTION MACHINES IN THE PRESENCE OF MAGNETIC SATURATION , 1989 .

[14]  J. H. Lang,et al.  Generalizing the Blondel-Park transformation of electrical machines: necessary and sufficient conditions , 1989 .