An Induction Machine Model for Predicting Inverter-Machine Interaction

The conventional qd induction motor model typically used in drive simulations is very inaccurate in predicting machine performance, except perhaps for the fundamental component of the current and the average torque near rated operating conditions. Predictions of current and torque ripple are often in error by a factor of two to five. This work sets forth an induction machine model specifically designed for use with inverter models to study machine-inverter interaction. Key features include stator and rotor leakage saturation as a function of current and magnetizing flux, distributed effects in the rotor circuits, and a highly computationally efficient implementation. The model is considerably more accurate than the traditional qd model, particularly in its ability to predict switching frequency phenomena. The predictions of the proposed model are compared to those of the standard qd model and to experimental measurements on a 37 kW induction motor drive.

[1]  James L. Drewniak,et al.  Wide-bandwidth multi-resolutional analysis of a surface-mounted PM synchronous machine , 1999 .

[2]  O. V. Thorsen.  Development and industrial application of a practical model for simulation of saturated deep bar induction machines , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[3]  N. Retiere,et al.  Deep-bar induction motor model for large transient analysis under saturated conditions , 1997, 1997 IEEE International Electric Machines and Drives Conference Record.

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

[5]  S. J. Salon,et al.  Coupling of Transient Fields, Circuits, and Motion Using Finite Element Analysis , 1990 .

[6]  A. Consoli,et al.  An improved model of saturated induction machines , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[7]  T.A. Lipo,et al.  Complex vector model of the squirrel cage induction machine including instantaneous rotor bar currents , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[8]  S. Nasar,et al.  A general equivalent circuit (GEC) of electric machines including cross-coupling saturation and frequency effects , 1988 .

[9]  C. Ong,et al.  Modeling and Analysis of Induction Machines Containing Space Harmonics Part I: Modeling and Transformation , 1983, IEEE Transactions on Power Apparatus and Systems.

[10]  Emil Levi.  Main flux saturation modelling in double-cage and deep-bar induction machines , 1996 .

[11]  Charles R. Sullivan,et al.  Models for induction machines with magnetic saturation of the main flux path , 1992 .

[12]  Dionysios C. Aliprantis,et al.  An advanced induction machine model for predicting inverter-machine interaction , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[13]  Emil Levi,et al.  A unified approach to main flux saturation modelling in D-Q axis models of induction machines , 1995 .

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

[15]  C. F. Landy,et al.  Improved models for the simulation of deep bar induction motors , 1990 .

[16]  Scott D. Sudhoff,et al.  Experimental characterization procedure for use with an advanced induction machine model , 2002 .

[17]  Paul C. Krause,et al.  Analysis of electric machinery , 1987 .

[18]  S. Williamson,et al.  A transient induction motor model including saturation and deep bar effect , 1996 .

[19]  Ali Keyhani,et al.  Nonlinear neural-network modeling of an induction machine , 1999, IEEE Trans. Control. Syst. Technol..

[20]  T.A. Lipo,et al.  Modelling of saturated AC machines including air gap flux harmonic components , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[21]  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.

[22]  T. Lipo,et al.  Computer Simulation of an Induction Machine with Spatially Dependent Saturation , 1984, IEEE Transactions on Power Apparatus and Systems.

[23]  G.R. Slemon,et al.  Modelling of inductance machines for electric drives , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[24]  T.A. Lipo,et al.  Multiple coupled circuit modeling of induction machines , 1993, Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting.

[25]  J. Langheim,et al.  Modelling of rotorbars with skin effect for dynamic simulation of induction machines , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[26]  Thomas A. Lipo,et al.  Modeling and Simulation of Induction Motors with Saturable Leakage Reactances , 1984, IEEE Transactions on Industry Applications.

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