Research on Speed Observer of PMSM Servo System

Abstract:

The incremental optical encoder is widely used in PMSM servo system for speed detection. However, this method is detected the average speed, which will cause delay time, and make the speed control system unstable at low speed range. A speed observer was designed in this paper, which is combining state observer and Kalman filter to estimate instantaneous speed. Simulation results show that this method can improve the speed detection accuracy of the PMSM servo system.

• Periodical: Advanced Materials Research (Volumes 317-319)
• Pages: 1223-1227
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.317-319.1223
• Online since: August 2011
• Authors: Rui Ning Huang, Cheng Song, Xiao Hui Liu, Yun Jiang Lou
• Keywords: Instantaneous Speed, Kalman Filter (KF), Permanent Magnet Synchronous Motor (PMSM), State Observer

References

[1] J.T. Tan, Y. Qin: Electric Drive Vol. (2)(2001), p.41

[2] Y.C. Bai, X.Q. Tang, J.H"Chen: Research on Ultra-low speed control of PMSM in servo system" WCICA. 2008, p.2381

[3] H. Wang, B. Yu, D.G. Xu: Proceedings of the CSEE. Vol. 24(7)(2004), p.151

[4] G.L. Wang, D.G. Xu, Y. Yu"Low Speed Control of Permanent Magnet Synchronous Motor Based on Instantaneous Speed Estimation" WCICA 2006, p.8033

DOI: 10.1109/wcica.2006.1713537

[5] R. Cheng, Z.Q. Deng, Y.G. Yan: Proceedings of the CSEE, Vol. 24(8)(2004), p.103

[6] Y. Gao, M. Yang, B.Yu: Proceedings of the CSEE, Vol. 25(22)(2005), p.125

[7] Z.D. Zheng, Y.D. Li, X. Xiao: Transactions of CES. Vol. 25(2)(2010), p.30

[8] D.G. Xu, Y. Gao"An approach to torque ripple compensation for high performance PMSM servo system" PESC'04. 2004, p.3256

DOI: 10.1109/pesc.2004.1355050

[9] Z.W. Xu. Transactions of CES. Vol. 19(10)(2004), p.38

[10] W. Zhang, W.Z. Yao, W.Y. Liang: Micromotors Vol. 41(1)( 2008), p.4