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DOI QR Code

Software Resolver-to-Digital Converter for Compensation of Amplitude Imbalances using D-Q Transformation

Kim, Youn-Hyun;Kim, Sol

  • Received : 2013.02.07
  • Accepted : 2013.04.18
  • Published : 2013.11.01

Abstract

Resolvers are transducers that are used to sense the angular position of rotational machines. The analog resolver is necessary to use resolver to digital converter. Among the RDC software method, angle tracking observer (ATO) is the most popular method. In an actual resolver-based position sensing system, amplitude imbalance dominantly distorts the estimate position information of ATO. Minority papers have reported position error compensation of resolver's output signal with amplitude imbalance. This paper proposes new ATO algorithm in order to compensate position errors caused by the amplitude imbalance. There is no need premeasured off line data. This is easy, simple, cost-effective, and able to work on line compensation. To verify feasibility of the proposed algorithm, simulation and experiments are carried out.

Keywords

Resolver-to-Digital converter (RDC);Synchronous demodulation;Angle Tracking Observer (ATO);Amplitude unbalance

References

  1. S. H. Hwang, H. J. Kim, J. M. Kim, L. Liu, H. Li, "Compensation of Amplitude Imbalance and Imperfect Quadrature in Resolver Signals for PMSM Drives," IEEE Transaction on Industry Applications, Vol. 47, No. 1, pp. 134-143, Jan. 2011 https://doi.org/10.1109/TIA.2010.2091477
  2. D. A. Khaburi, "Software-Based Resolver-to-Digital Converter for DSP-Based Drives Using an Improved Angle-Tracking Observer," IEEE Transaction on Instrumentation and Measurement, Vol. 61, No. 4, pp. 922-929, Apr. 2012 https://doi.org/10.1109/TIM.2011.2179825
  3. S. Sarma, V. K. Agrawa, S. Udupa, "Software-Based Resolver-to-Digital Conversion Using a DSP," IEEE Transaction on Industrial Electronics, Vol. 55, No. 1, pp.371-379, Jan. 2008 https://doi.org/10.1109/TIE.2007.903952
  4. J. Bergas, C. Ferrater, G. Gross, R. Ramirez, S. Galceran, and J. Rull, "High-Accuracy All-Digital Resolver-to-Digital Conversion," IEEE Transaction on Industrial Electronics, Vol. 59, No. 1, pp. 326-333, Jan. 2012 https://doi.org/10.1109/TIE.2011.2143370
  5. L. Ben-Brahim, M. Benammar, M. Alhamadi, N. Alhamadi, M. Alhimi, "A New Low Cost Linear Resolver Converter," IEEE Sensors Journal, Vol. 8, No. 10, pp. 1620-1627, Oct. 2008 https://doi.org/10.1109/JSEN.2008.928924
  6. C. Attaianese, G. Tomasso, "Position Measurement in Industrial Drives by Means of Low-Cost Resolver-to-Digital Converter," IEEE Transaction on Instrumentation and Measurement, Vol. 56, No. 6, pp.2155-2159, Dec. 2007 https://doi.org/10.1109/TIM.2007.908120
  7. A. Michalski, J. Sienkiewicz, Z. Watral, "Universal Magnetic Circuit for Resolvers with Different Speed Ratios," IEEE Instrument and Measurement magazine, Vol. 10, No. 5, pp. 58-68, Oct. 2007
  8. L. Ben-Brahim, M. Benammar, M. A. Alhamadi, "A Resolver Angle Estimator Based on Its Excitation Signal," IEEE Transaction on Industrial Electronics, Vol. 56, No. 2, pp. 574-580, Feb. 2009 https://doi.org/10.1109/TIE.2008.2002719
  9. M. Benammar, L. Ben-Brahim, and M. A. Alhamadi, "A high precision resolver-to-DC converter," IEEE Transaction on Instrumentation and Measurement, Vol. 54, No. 6, pp. 2289-2296, Dec. 2005 https://doi.org/10.1109/TIM.2005.858135
  10. L. Idkhajine, E. Monmasson, M. W. Naouar, A. Prata, K. Bouallaga, "Fully Integrated FPGA-Based Controller for Synchronous Motor Drive," IEEE Transaction on Industrial Electronics, Vol. 56, No. 10, pp. 4006-4017, Oct. 2009 https://doi.org/10.1109/TIE.2009.2021591
  11. R. Hoseinnezhad, A. Bab-Hadiashar, P. Harding, "Position sensing in brake-by-wire callipers using resolvers," IEEE Transaction on Vehicle Technology, Vol. 55, No. 3, pp. 924-932, May. 2006 https://doi.org/10.1109/TVT.2006.874576
  12. D. C. Hanselman, "Techniques for improving resolverto-digital conversion accuracy," IEEE Transaction on Industrial Electronics, Vol. 38, No. 6, pp. 501-504, Dec. 1991 https://doi.org/10.1109/41.107116
  13. C. H. Yim, I. J. Ha, M. S. Ko, "A resolver-to-digital conversion method for fast tracking," IEEE Transaction on Industrial Electronics, Vol. 39, No. 5, pp. 369-378, Oct. 1992 https://doi.org/10.1109/41.161468
  14. M. Benammar, L. Ben-Brahim, M. A. Alhamadi, "A novel resolver-to-360°linearized converter," IEEE Sensors Journal, Vol. 4, No. 1, pp. 96-101, Feb. 2004 https://doi.org/10.1109/JSEN.2003.820317
  15. D. C. Hanselman, "Resolver signal requirements for high accuracy resolver-to-digital conversion," IEEE Transaction on Industrial Electronics, Vol. 37, No. 6, pp. 556-561, Dec. 1990 https://doi.org/10.1109/41.103461
  16. H. S. Mok, S. H. Kim, Y. H. Cho, "Reduction of PMSM torque ripple caused by resolver position error," IET Journals & Magazines, Electronics Letters, Vol. 43, No. 11, pp. 556-561, May. 2007
  17. S. H. Hwang, Y. H. Kwon, J. M. Kim, J. S. Oh, "Compensation of position error due to amplitude imbalance in resolver signals," Journal of Power Electronics, Vol. 9, No. 5, pp. 748-756, Sep. 2009

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