Design of a Non-linear Observer for VSI Fed Synchronous Motor
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Design of a Non-linear Observer for VSI Fed Synchronous Motor

Authors: P. Ramana , K. Alice Mary, M. Surya Kalavathi, M. Phani Kumar

Abstract:

This paper discusses two observers, which are used for the estimation of parameters of PMSM. Former one, reduced order observer, which is used to estimate the inaccessible parameters of PMSM. Later one, full order observer, which is used to estimate all the parameters of PMSM even though some of the parameters are directly available for measurement, so as to meet with the insensitivity to the parameter variation. However, the state space model contains some nonlinear terms i.e. the product of different state variables. The asymptotic state observer, which approximately reconstructs the state vector for linear systems without uncertainties, was presented by Luenberger. In this work, a modified form of such an observer is used by including a non-linear term involving the speed. So, both the observers are designed in the framework of nonlinear control; their stability and rate of convergence is discussed.

Keywords: Permanent magnet synchronous motor, Mathematicalmodelling, Rotor reference frame, parameter estimation, Luenbergerobserver, reduced order observer, full order observer

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1330253

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References:


[1] K. Alice Mary, ÔÇÿSpeed Control of An SPWM inverter Driven Non Linear PMSM Drive with Pole Placement Technique-11-, IEEE International conference on Electrical energy systems and power electronics in emerging economics ICEESPEEE 2009. SRM University, Chennai 16-17 April 2009 413-417
[2] K. Alice Mary, ÔÇÿDesign performance of the speed control systems for inverter driven Nonlinear Permanent magnet synchronous motor using exact feedback linearization-, 1st international conference on computer communications, control and information technology",06-07-feb2009
[3] P. S. Bimbra, ÔÇÿGeneralized theory of Electrical machines-, Khanna Publishers.
[4] Paul C. Krause, ÔÇÿAnalysis of Electrical Machinery and drive systems-, 2nd edition, Wiley Inter science A John wiley and sons; INC Publications.
[5] R. Krishnan, ÔÇÿElectric motor drives: Modeling analysis and control-, Prentice Hall, 2001 edition.
[6] Noureddine Guersi, Messaoud Fjeghaba and Messaoud Ramdani, ÔÇÿComparative analysis of intelligent controllers for permanent magnet synchronous motor drive systems, Asian journal of Information Technology, Medwell journals, 2007.
[7] Pragasen Pillay and Ramu Krishnan, ÔÇÿModelling, simulation and analysis of Permanent magnet motor drives, part-1: The permanent magnet synchronous motor drive, IEEE transactions, March/April 1989.
[8] S. Vaez-Zadeh, ÔÇÿHigh performance Control of Permanent Magnet Synchronous Motors-, Tutorial Proposal for MED 2007 Conference.
[9] Mihai Comanescu, ÔÇÿReduced order observers for Rotor Position Estimation of Nonsalient PMSM-, IEEE transactions, 2009.
[10] Jorge A. Solsona and Maria I, ÔÇÿA Nonlinear Reduced Order Observer for Permanent Magnet Synchronous Motors-, IEEE transactions, 2006.
[11] A. B .Dehkordi and M. Gole, ÔÇÿPermanent Magnet Synchronous Machine Model for real time simulation-, International conference on power systems transients, June 19-23, 2005.
[12] Joseph O. Ojo and Thomas A. Lipo, ÔÇÿAn Improved Model for Saturated Salient Pole synchronous motors- Wisconsin Electric Machines and Power Electronics Consortium-, January 1988.
[13] Khwaja M. Rahman and Silva Hiti, ÔÇÿIdentification of Machine parameters of a Synchronous Motor-, IEEE transactions, 2003
[14] P. Brandstetter, P. Rech, and P. Simonik, ÔÇÿSensorless Control of Permanent Magnet Synchronous Motor Using Luenberger Observer-, PIERS Proceedings, Cambridge, USA, July 5-8, 2010.
[15] Pradeep K. Nandam, and Paresh C. Sen, ÔÇÿA Comparative Study of a Luenberger Observer and Adaptive Observer-Based Variable Structure Speed Control System Using a Self-Controlled Synchronous Motor-, IEEE transactions on industrial electronics, APRIL 1990.
[16] Joohn-,Sheok Kim and Seung-,Ki SUI, ÔÇÿHigh Performance PMSM Drives without Rotational Position Sensors Using Reduced Order Observer-, IEEE transactions, 1995.
[17] Jorge A. Solsona and Maria I, ÔÇÿDisturbance and Nonlinear Luenberger Observers for Estimating Mechanical Variables in Permanent Magnet Synchronous Motors Under Mechanical Parameters Uncertainties-, IEEE transactions, August 2003.
[18] Hyungbo Shim and Laurent Praly, ÔÇÿRemarks on equivalence between full order and reduced order nonlinear observers-, Conference on Decision and Control, December 2003.
[19] Fanglai Zhu, ÔÇÿThe Design of Full-order and Reduced-order Adaptive Observers for Nonlinear Systems-, IEEE International Conference on Control and Automation, June 2007.
[20] K. Alice Mary, A. Patra, N. K. De, ÔÇÿA Generalized Approach to the Design of the Speed Control system for Inverter-Driven Permanent Magnet Synchronous Motor-, IET-UK International Conference on Information and Communication Technology in Electrical Sciences (ICTES 2007), Dr. M.G.R. University, Chennai, Tamil Nadu, India. Dec. 20-22, 2007.
[21] Mihai Comanescu and Todd D. Batzel, ÔÇÿFull Order EMF Observer for PMSM Design, Analysis and Performance under Improper Speed Signal-, IEEE transactions, 2010.
[22] C. Elmas and H.Zelaya-De La Parra, ÔÇÿApplication of a full-order extended Luenberger observer for a position sensor less operation of a switched reluctance motor drive-, IEEE transactions, September 1996.
[23] George Ellis, ÔÇÿObservers in Control Systems-, Academic press, 2002.