Title
Mechanical Sensorless Speed Control Of Permanent-Magnet Ac Motors Driving An Unknown Load
Abstract
A new sensorless scheme for high-performance speed control of permanent-magnet ac motors (PMACMs) driving an unknown load is proposed. This scheme uses an extended nonlinear reduced-order observer to estimate the induced electromotive force (EMF) and load torque. From the estimated variables, the rotor position, the rotor speed, and the position derivative of flux are calculated and are used to close the control loop. In order to improve the drive performance, the estimated load torque is incorporated as a feedforward signal in the closed control loop. In addition, the proposed sensorless PMACM drive allows the torque-ripple and copper-loss minimization for motors with an arbitrary EMF waveform. Simulation and experimental results to validate the proposal are presented in this paper.
Year
DOI
Venue
2006
10.1109/TIE.2006.870723
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Keywords
Field
DocType
nonlinear estimation, nonsinusoidal electromotive-force (EMF) waveform, permanent-magnet motors, unknown load torque estimation
Vector control,Torque,Control theory,Direct torque control,AC motor,Control engineering,Rotor (electric),Engineering,Torque ripple,Electronic speed control,Feed forward
Journal
Volume
Issue
ISSN
53
2
0278-0046
Citations 
PageRank 
References 
8
1.40
10
Authors
5
Name
Order
Citations
PageRank
C. De Angelo181.40
G. R. Bossio29612.53
J. Solsona33812.41
G. O. Garcia45611.11
M. I. Valla59421.19