DocumentCode :
1920435
Title :
Impact of position sensor accuracy on the performance of IPM drives
Author :
Lei Hao ; Gopalakrishnan, S. ; Namuduri, Chandra ; Rahman, Kaysar
Author_Institution :
Gen. Motors, Warren, MI, USA
fYear :
2013
fDate :
15-19 Sept. 2013
Firstpage :
196
Lastpage :
201
Abstract :
In this paper, the influence of rotor position sensor accuracy on the performance of an Interior Permanent Magnet (IPM) motor drive for automotive propulsion is presented. Analytical equations describing the torque production in IPM machines show the need for rotor position feedback with high accuracy and resolution, especially for operation in the flux weakening region. Finite element analysis was performed to substantiate this conclusion and also to estimate the torque and power degradation due to the position sensor error. The dynamic angle error of various high resolution/accuracy sensors was measured on the test bench at various operating speeds and temperatures and the measured data was used for computing the impact of angle error on the torque ripple. The details of these results are presented in the paper.
Keywords :
finite element analysis; permanent magnet motors; synchronous motor drives; IPM drives; automotive propulsion; dynamic angle error; finite element analysis; flux weakening region; interior permanent magnet motor drive; rotor position feedback; rotor position sensor accuracy; torque production; Accuracy; Finite element analysis; Measurement uncertainty; Rotors; Temperature measurement; Torque; Vehicle dynamics;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2013 IEEE
Conference_Location :
Denver, CO
Type :
conf
DOI :
10.1109/ECCE.2013.6646700
Filename :
6646700
Link To Document :
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