NDLI: Sliding Mode MRAS Speed Estimators for Sensorless Control of Induction Machine under Improper Rotor Time Constant

Content Provider	IEEE Xplore Digital Library
Author	Comanescu, Mihai Batzel, Todd
Copyright Year	2007
Description	Author affiliation: Penn State University - Altoona College, Altoona, Pennsylvania. Email: tdb120@psu.edu (Batzel, Todd) \|\| Penn State University - Altoona College, Altoona, Pennsylvania. Email: muc23@psu.edu (Comanescu, Mihai)
Abstract	The paper discusses the speed estimation accuracy of two Sliding Mode Model Reference Adaptive System observers under improper rotor time constant. The SM MRAS observers are used for speed estimation in a sensorless direct field oriented (DFO) induction machine (IM) drive. In a sensorless DFO drive, the rotor fluxes are estimated based on the measured voltages/currents and are used for field orientation. Speed estimation by the rotor flux MRAS method is attractive since the reference quantities (rotor fluxes) are already available. Classic MRAS or SM MRAS speed estimators are viable alternatives and they work well under ideal conditions. The paper analyzes the speed estimation error of the SM MRAS observers under real conditions (improper rotor time constant and nonideal integration) and compares it with the Classic MRAS method.
Starting Page	2226
Ending Page	2231
File Size	2463265
Page Count	6
File Format	PDF
ISBN	9781424407545
DOI	10.1109/ISIE.2007.4374954
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-04
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensorless control Induction machines Rotors Equations Samarium Voltage Estimation error State estimation Observers Steady-state
Content Type	Text
Resource Type	Article

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