NDLI: Nonlinear high-gain observer design for operation of SPMS machine under saturation

Content Provider	IEEE Xplore Digital Library
Author	Jurkovic, S. Strangas, E.G. Khalil, H.
Copyright Year	2009
Description	Author affiliation: Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824 (Jurkovic, S.; Strangas, E.G.; Khalil, H.)
Abstract	This paper presents modeling, characterization and control of SPMSM under loaded conditions i.e. saturation. Determining the rotor flux position of PMAC machines under no-load is relatively trivial since it is directly related to the rotor position. However under loaded condition, saturation in particular, the flux is comprised of two components: one due to the rotor magnets and the other due to the stator current. This fact causes the magnetic axis to shift from the rotor position, which in turn causes an error in any control algorithm that uses a conventional rotor position estimation. In other words, the rotor flux position under loaded operating conditions is dependent on both rotor position and stator currents. This paper characterizes this error through a non-linear model of the machine, as well as the Finite Element analysis. Design and analysis of a general control algorithm for the PMAC machines which accounts for the saturation is presented, along with its implementation for a specific high frequency injection method for sensor control of PMAC machine. Simulation and experimental results validating the non-linear model of the machine, existence of the saturation induced error and performance of the proposed observer are also given.
Starting Page	1
Ending Page	8
File Size	2640295
Page Count	8
File Format	PDF
ISBN	9781424442416
ISSN	19449925
DOI	10.1109/PES.2009.5275690
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Scanning probe microscopy Stators Algorithm design and analysis Magnets Magnetic flux Saturation magnetization Error correction Finite element methods Frequency Sensor phenomena and characterization
Content Type	Text
Resource Type	Article

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