Automatic tracking of MTPA trajectory in IPM motor drives based on AC current injection

The paper deals with a novel approach for the real-time tracking of the Maximum-Torque-Per-Ampere (MTPA) trajectory of an IPM motor drive. The proposed approach is based on the injection of proper tests signals and allows the MTPA trajectory to be learned and updated in the drive during steady-state conditions. The analytical development of the estimation algorithm, supported by a complete validation by simulation, is given in the paper. Finally experimental results are presented based on a prototype IPM drive system.

[1]  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).

[2]  Hamid A. Toliyat,et al.  Robust Maximum Torque per Ampere (MTPA) Control of PM-Assisted SynRM for Traction Applications , 2007, IEEE Transactions on Vehicular Technology.

[3]  Ho-Gi Kim,et al.  A MTPA control scheme for an IPM synchronous motor considering magnet flux variation caused by temperature , 2004, Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04..

[4]  M. Sanada,et al.  Effects and Compensation of Magnetic Saturation in Flux-Weakening Controlled Permanent Magnet Synchronous Motor Drives , 1994 .

[5]  Seung-Ki Sul,et al.  Comparison of PM Motor Structures and Sensorless Control Techniques for Zero-Speed Rotor Position Detection , 2006, IEEE Transactions on Power Electronics.

[6]  S. Morimoto,et al.  Expansion of operating limits for permanent magnet motor by current vector control considering inverter capacity , 1990 .

[7]  Seung-Ki Sul,et al.  Parameter independent maximum torque per ampere (MTPA) control of IPM machine based on signal injection , 2010, 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[8]  Jae Wook Jeon,et al.  Signal compensation and extraction of high resolution position for sinusoidal magnetic encoders , 2007, 2007 International Conference on Control, Automation and Systems.

[9]  D. Howe,et al.  Online optimal flux-weakening control of permanent-magnet brushless AC drives , 2000 .

[10]  M. Tursini,et al.  An Embedded System for Position and Speed Measurement Adopting Incremental Encoders , 2004, IEEE Transactions on Industry Applications.

[11]  Kim Young-Kwan,et al.  Robust self-tuning MTPA algorithm for IPMSM drives , 2008, 2008 34th Annual Conference of IEEE Industrial Electronics.

[12]  N. Cheung.  An innovative method to increase the resolution of optical encoders in motion servo systems , 1999, Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475).

[13]  Kala Meah,et al.  Rapid Control Prototyping of a Permanent Magnet DC Motor Drive System using dSPACE and Mathworks Simulink , 2007, APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition.

[14]  S. Morimoto,et al.  High performance servo drive system of salient pole permanent magnet synchronous motor , 1991, Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting.

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

[16]  Silverio Bolognani,et al.  On-line tracking of the MTPA trajectory in IPM motors via active power measurement , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[17]  M. Tursini,et al.  Speed measurement algorithms for low-resolution incremental encoder equipped drives: a comparative analysis , 2007, 2007 International Aegean Conference on Electrical Machines and Power Electronics.

[18]  S. Bolognani,et al.  Self-tuning of MTPA current vector generation scheme in IPM synchronous motor drives , 2007, 2007 European Conference on Power Electronics and Applications.

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

[20]  Y. Mohamed,et al.  Adaptive self-tuning MTPA vector controller for IPMSM drive system , 2006, IEEE Transactions on Energy Conversion.

[21]  Seung-Ki Sul,et al.  Online Minimum-Copper-Loss Control of an Interior Permanent-Magnet Synchronous Machine for Automotive Applications , 2006, IEEE Transactions on Industry Applications.