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2011 IEEE Energy Conversion Congress and Exposition
A back-EMF-based reduced-order position observer with stator-resistance adaptation is analyzed for motionsensorless synchronous reluctance motor drives. Analytical equations for steady-state estimation errors and stability conditions are derived (with and without resistance adaptation), taking into account errors in the parameter estimates. The effect of the observer gain on the noise reduction is studied by means of eigenvector analysis. A robust gain selection is proposed, which maximizes thedoi:10.1109/ecce.2011.6063753 fatcat:fqbjdoxyonhs7fzy5xdbchp434