Development of a Nonlinear and Model-Based Online Loss Minimization Control of an IM Drive

Among the numerous loss minimization algorithms, a loss-model-based approach offers a fast response without torque pulsations. However, it requires the accurate loss model and the knowledge of the motor parameters. Therefore, a technical difficulty in deriving the loss-model-based controller (LMC) lies in the complexity of the full loss model and the online motor parameter adaptation. In an effort to overcome the drawbacks of LMC, this paper presents a new strategy for inverter-fed induction motors drives aiming for both high efficiency and high dynamic performance. A new LMC incorporating the effect of the leakage inductance and an adaptive-backstepping-based nonlinear controller are designed and combined with each other. Thus, online parameter adaptation of LMC can be obtained with no extra effort. The proposed control scheme is implemented in real time using digital signal processor board DS 1104. The simulation and experimental results demonstrate the effectiveness of the proposed scheme.

[1]  Yamamura.  AC motors for high-performance applications , 1986 .

[2]  Emil Levi.  Impact of iron loss on behaviour of vector controlled induction machines , 1994 .

[3]  Hualin Tan.  Field orientation and adaptive backstepping for induction motor control , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[4]  Kwanghee Nam,et al.  A vector control scheme for EV induction motors with a series iron loss model , 1998, IEEE Trans. Ind. Electron..

[5]  Dong-Seok Hyun,et al.  Stator-flux-oriented control of induction motor considering iron loss , 2001, IEEE Trans. Ind. Electron..

[6]  M. Nasir Uddin,et al.  Development of an Adaptive Backstepping Based Nonlinear Control of an Induction Motor Incorporating Iron Loss with Parameter Uncertainties , 2006, 2006 Canadian Conference on Electrical and Computer Engineering.

[7]  N. Stranges,et al.  Losses due to rotational flux in three phase induction motors , 1994 .

[8]  Weiping Li,et al.  Applied Nonlinear Control , 1991 .

[9]  J.K. Pedersen,et al.  Efficiency optimized control of medium-size induction motor drives , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[10]  S. Lim,et al.  Loss-minimising control scheme for induction motors , 2004 .

[11]  J. Malinowski,et al.  Advances in construction techniques of AC induction motors: preparation for super-premium efficiency levels , 2004, IEEE Transactions on Industry Applications.

[12]  Bimal K. Bose,et al.  Fuzzy logic based on-line efficiency optimization control of an indirect vector-controlled induction motor drive , 1995, IEEE Trans. Ind. Electron..

[13]  A Fransua,et al.  Electrical Machines and Drive Systems , 1984 .

[14]  Thomas A. Lipo,et al.  Simple efficiency maximizer for an adjustable frequency induction motor drive , 1991 .

[15]  Andreas Löschel,et al.  Technological change, energy consumption, and the costs of environmental policy in energy–economy–environment modelling , 2004 .

[16]  C. Attaianese,et al.  Control improvement of induction motor drives , 1993, Conference Record of the Power Conversion Conference - Yokohama 1993.

[17]  D. Mayne.  Nonlinear and Adaptive Control Design [Book Review] , 1996, IEEE Transactions on Automatic Control.

[18]  F. Fernandez-Bernal,et al.  Model-based loss minimization for DC and AC vector controlled motors including core saturation , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[19]  J.L. Kirtley,et al.  Improving Induction Motor Efficiency with Die-cast Copper Rotor Cages , 2007, 2007 IEEE Power Engineering Society General Meeting.

[20]  E. Levi.  Impact of iron loss on behaviour of vector controlled induction machines , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[21]  M.N. Uddin,et al.  Adaptive Backstepping Based Online Loss Minimization Control of an IM Drive , 2007, 2007 IEEE Power Engineering Society General Meeting.

[22]  M.N. Uddin,et al.  Model-Based Loss Minimization Control of an Induction Motor Drive , 2006, 2006 IEEE International Symposium on Industrial Electronics.

[23]  E. Akpinar,et al.  Starting transients in slip energy recovery induction motor drives. I. Formulation and modeling , 1992 .

[24]  Thomas A. Lipo,et al.  On-Line Efficiency Optimization of a Variable Frequency Induction Motor Drive , 1985, IEEE Transactions on Industry Applications.

[25]  H. Rasmussen,et al.  Rotor field oriented control with adaptive iron loss compensation , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[26]  Frede Blaabjerg,et al.  Control in Power Electronics , 2002 .

[27]  Guillermo O. García,et al.  An efficient controller for an adjustable speed induction motor drive , 1994, IEEE Trans. Ind. Electron..

[28]  C. B. Gray.  Electrical machines and drive systems , 1989 .

[29]  Yoichi Hori,et al.  Convergence improvement of efficiency-optimization control of induction motor drives , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[30]  Yoichi Hori,et al.  Fast efficiency optimization techniques for the indirect vector-controlled induction motor drives , 2003 .