Title
Design and Low-Cost Implementation of an Optimally Robust Reduced-Order Rotor Flux Observer for Induction Motor Control
Abstract
The aim of this paper is to design and analyze reduced-order observers of the rotor flux of induction motors. The design is carried out in two steps. In the first step, a boundary of the stability region of the observation error is obtained corresponding to a chosen Lyapunov function. In the second step, the boundary is translated into a performance index that is minimized with respect to stator and rotor resistance variations and differences of voltages supplying the motor and those supplying the observer in order to obtain the largest stability region. Implementation of the observer on a low-cost fixed-point digital signal processor using look-up tables is described. Experimental results are shown with reference to a prototype consisting of a simple proportional-integral controller, the proposed observer, and a 2.2-kW induction motor; the implementations of both the controller and the observer are carried out on a DS1104 dSpace microcontroller using the fixed-point option.
Year
DOI
Venue
2007
10.1109/TIE.2007.905632
IEEE Transactions on Industrial Electronics
Keywords
Field
DocType
Lyapunov methods,PI control,digital signal processing chips,induction motors,machine control,rotors,table lookup,DS1104 dSpace microcontroller,Lyapunov function,fixed-point digital signal processor,induction motor control,look-up tables,low-cost digital signal processor,low-cost implementation,optimally robust rotor flux observer,power 2.2 kW,proportional-integral controller,reduced-order rotor flux observer,rotor resistance,stator resistance,Induction motors,low-cost implementation,rotor flux observers
Lyapunov function,Induction motor,Control theory,Digital signal processor,Control theory,Control engineering,Rotor (electric),Stator,Engineering,Observer (quantum physics),Machine control
Journal
Volume
Issue
ISSN
54
6
0278-0046
Citations 
PageRank 
References 
9
1.03
10
Authors
4
Name
Order
Citations
PageRank
Francesco Alonge1537.09
Filippo D'Ippolito2456.00
Giuseppe Giardina391.03
Tonino Scaffidi491.03