NDLI: Sensorless Vector Control of Induction Machine with Low Speed Capability using MRAS with Drift and Inverter Nonlinearities Compensation

Content Provider	IEEE Xplore Digital Library
Author	Silva, C. Araya, R.
Copyright Year	2007
Description	Author affiliation: Univ. Tecnica Federico Santa Maria, Valparaiso (Silva, C.; Araya, R.)
Abstract	The performance of sensorless vector control schemes is seriously degraded at low speed operation, becoming impossible to operate constantly at standstill. There are three main reasons for this degradation in low speed senseless performance. First, offset on the estimation of the back-EMF that causes drift in the open integration of the stator model of the machine. Second, unaccounted nonlinearities of the inverter distort the back-EMF estimation. Finally, errors on the estimated machine parameters, mainly stator resistance cause phase error on the back-EMF estimation. This paper deals with the first two phenomenon to achieve sensorless stator flux orientation and speed feedback by means of an MRAS observer, down to fractions of a Hertz.
Starting Page	1922
Ending Page	1928
File Size	869784
Page Count	7
File Format	PDF
ISBN	9781424408122
DOI	10.1109/EURCON.2007.4400662
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-09
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Machine vector control Induction machines Inverters Stators Voltage Phase estimation Sensorless control Feedback Current measurement Degradation sensorless control AC machines vector control
Content Type	Text
Resource Type	Article

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