Improved current regulators for IPM machine drives using on-line parameter estimation

Current regulators for interior permanent magnet machines have unique challenges if high performance torque regulation is to be achieved. This paper presents a novel approach for fully decoupling the problematic cross-coupling with estimated parameters from online self-tuning. In the on-line estimation algorithm, the model is formulated such that cross-coupled estimated parameters are eliminated, which improves the parameter estimation robustness. Parameter estimation is further improved by combining the model with a closed loop observer. Cross-coupling terms can then be decoupled using estimated parameters to improve the performance of the current regulator.

[1]  R.D. Lorenz,et al.  A simplified approach to continuous, online tuning of field oriented induction machine drives , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[2]  Hidehiko Sugimoto,et al.  Secondary Resistance Identification of an Induction-Motor Applied Model Reference Adaptive System and Its Characteristics , 1987, IEEE Transactions on Industry Applications.

[3]  Robert D. Lorenz,et al.  Using on-line parameter estimation to improve efficiency of IPM machine drives , 2002, 2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289).

[4]  G.C. Verghese,et al.  Subset selection in identification, and application to speed and parameter estimation for induction machines , 1995, Proceedings of International Conference on Control Applications.

[5]  Shigeo Morimoto,et al.  Wide-speed operation of interior permanent magnet synchronous motors with high-performance current regulator , 1994 .

[6]  Francesco Alonge,et al.  Parameter identification of induction motor model using genetic algorithms , 1998 .

[7]  Thomas A. Lipo,et al.  Field Weakening in Buried Permanent Magnet AC Motor Drives , 1985, IEEE Transactions on Industry Applications.

[8]  Jinhwan Jung,et al.  PI type decoupling control scheme for high speed operation of induction motors , 1997, PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972.

[9]  F. Briz,et al.  Dynamic analysis of current regulators for AC motors using complex vectors , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[10]  S.R. MacMinn,et al.  Control techniques for improved high-speed performance of interior PM synchronous motor drives , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[11]  H. Kubota,et al.  DSP-based speed adaptive flux observer of induction motor , 1991, Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting.

[12]  Seung-Ki Sul,et al.  Speed control of interior permanent magnet synchronous motor drive for the flux weakening operation , 1997 .

[13]  R.D. Lorenz,et al.  A continuous-time observer to estimate electrical parameters of induction machines , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[14]  Thomas M. Jahns,et al.  Interior Permanent-Magnet Synchronous Motors for Adjustable-Speed Drives , 1986, IEEE Transactions on Industry Applications.

[15]  F. Briz,et al.  Analysis and design of current regulators using complex vectors , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.

[16]  Tomy Sebastian,et al.  Temperature effects on torque production and efficiency of PM motors using NdFeB magnets , 1993, Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting.

[17]  S. Morimoto,et al.  Effects and compensation of magnetic saturation in permanent magnet synchronous motor drives , 1993, Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting.

[18]  Hans-Peter Nee,et al.  Model-based current control of AC machines using the internal model control method , 1995 .