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Author Curson, A. ♦ Sumner, M.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2009
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Acoustic distortion ♦ Automotive applications ♦ Sensorless control ♦ Pulse width modulation ♦ Permanent magnets ♦ AC machine ♦ Permanent Magnet motor ♦ Signal resolution ♦ Low voltage ♦ Acoustic noise ♦ Current measurement ♦ Frequency ♦ Automotive Application
Abstract Two encoderless control methods for permanent magnet machines are compared for automotive applications. At low and zero speeds, model based methods cannot be utilised, and therefore a saliency tracking method is needed. A “d-axis injection” method and a “current derivative” method are evaluated in terms of quality of position signal and additional current distortion introduced. The acoustic noise produced by both methods is also compared. The acoustic noise is important in automotive applications as it can affect driver comfort. Experimental tests for a low voltage 1kW SMPM (Surface Mounted Permanent Magnet) machine for a wide range of loads indicate that the current derivative method performs better than the d-axis injection method for quality of position signal, and it also introduces a lower audible noise. However for both techniques the quality of the position estimate is improved at the expense of additional audible noise and additional current distortion.
Description Author affiliation: The University of Nottingham, University Park, Nottingham, U.K (Curson, A.; Sumner, M.)
ISBN 9781424444328
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-09-08
Publisher Place Spain
Size (in Bytes) 627.80 kB
Page Count 10
Starting Page 1
Ending Page 10


Source: IEEE Xplore Digital Library