Paper Info
Title
Analysis And Compensation Of Inverter Nonlinearity Effect On A Sensorless Pmsm Drive At Very Low And Zero Speed Operation
Abstract
It has been well established in the literature that inverter nonlinearity effects afflict saliency-based sensorless drives. The inverter nonlinearity leads to the generation of signals that corrupt the useful position information. The resulting effect differs depending on the injection approach utilized in the drive. Various compensation techniques to overcome this effect have been published in the literature. This paper is concerned with the zero-vector current-derivative technique. The effect of the varying ON-state resistance of the inverter power devices on the position signal is investigated in detail. Knowledge of the source of the corrupting signals facilitates compensation and determines its applicability. Two approaches for inverter nonlinearity compensation are compared. The first approach utilizes a lookup table from offline-processed data, while the second one is a simpler approach based on the current-dependent resistance characteristic of the inverter switching devices. Experimental performance under sensorless condition is shown for both approaches.
Year
DOI
Venue
2010
10.1109/TIE.2010.2044116
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Keywords
Field
DocType
Inverter nonlinearity, permanent-magnet machines, saliency, sensorless control
Lookup table,Inverter,Nonlinear system,Control theory,Salience (neuroscience),Power semiconductor device,Pulse-width modulation,Electronic engineering,Control engineering,Engineering
Journal
Volume
Issue
ISSN
57
12
0278-0046
Citations 
PageRank 
References 
11
1.36
8
Authors
6
Name
Order
Citations
PageRank
Reiko Raute1122.43
Cedric Caruana2809.87
Cyril Spiteri Staines3629.06
Joseph Cilia4111.36
M. Sumner59920.37
Greg M. Asher6111.36