Browse > Article

Inertia and Coefficient of Friction Estimation of Electric Motor using Recursive Least-Mean-Square Method  

Kim, Ji-Hye (경북대 전기공학과)
Choi, Jong-Woo (경북대 전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.56, no.2, 2007 , pp. 311-316 More about this Journal
Abstract
This paper proposes the algorithm which estimates moment of the inertia and friction coefficient of friction for high performance speed control of electric motor. The proposed algorithm finds the moment of inertia and friction coefficient of friction by observing the speed error signal generated by the speed observer and using Recursive Least-Mean-Square method(RLS). By feedbacking the estimated inertia and estimated coefficient of friction to speed controller and full order speed observer, then the errors of the inertia and coefficient of friction and speed due to the inaccurate initial value are decreased. Inertia and coefficient of friction converge to the actual value within several times of speed changing. Simulation and actual experiment results are given to demonstrate the effectiveness of the proposed parameter estimator.
Keywords
inertia and coefficient of friction estimation; speed observer; RLS; motor speed control;
Citations & Related Records

Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 Robert D. Lorenz and Keith W. VanPatten, 'High-Resolution Velocity Estimation for All-Digital, ac Servo Drives,' IEEE Trans. Ind. Appl., vol. 27, no. 4, pp. 701-705, July/Aug., 1991   DOI   ScienceOn
2 Kouetsu Fujita and Katsumasa Sado, 'Instantaneous Speed Detection with Parameter Identification for ac Servo Systems' IEEE Trans. Ind. Appl., vol. 28, no. 4, pp. 864-872, July/Aug., 1992   DOI   ScienceOn
3 F.Schutte, S.Beineke, A.Rolfsmeier, and H.Grotstollen 'Online Identification of Mechanical Parameter Using Extended Kalman filters,' IAS Proc., pp. 501, 1997
4 J.-W. Choi, S.-C. Lee and H.-G. Kim, 'Inertia identification algorithm for high-performance speed control of electric motors,' IEE Proceedings- Electric Power Applications, vol. 153, no. 03,PP. 379-386, May 2006
5 P.E.Wellstead and M.B.2arrop, Self-tuning Systems, JOHN WILEY&SONS, pp. 96-102, 1991
6 설승기, 전기기기 제어론, 도서출판 흥릉과학출판사, pp. 96 -104, 2005