0000000000435205

AUTHOR

T. Scaffidi

showing 2 related works from this author

Design and Low-Cost Implementation of an Optimally Robust Reduced-Order Rotor Flux Observer for Induction Motor Control

2007

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 …

Lyapunov functionDigital signal processorEngineeringStatorbusiness.industryControl engineeringlaw.inventionsymbols.namesakeMicrocontrollerSettore ING-INF/04 - AutomaticaControl and Systems EngineeringControl theoryRobustness (computer science)lawLookup tablesymbolsInduction motors low-cost implementation rotor flux observers.Electrical and Electronic EngineeringbusinessInduction motorMachine controlIEEE Transactions on Industrial Electronics
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ROTOR FLUX OPTIMAL ESTIMATION FOR INDUCTION MOTOR CONTROL

2005

Abstract The aim of this paper is to analyze and design reduced order observers of the rotor flux of induction motors. The design requirements are: a) the convergence rate of the rotor flux estimation error; b) a low sensitivity to stator and rotor resistance variations; c) a low sensitivity to errors due to the implementation of the observers on microprocessor-based systems. It is shown that, in order to satisfy the requirements a)-c), it is sufficient to solve a constrained optimization problem according to a criterion in which these requirements appear explicitly. The implementation of the observer is discussed. The observer is tested by simulation and experiments.

EngineeringObserver (quantum physics)Optimal estimationbusiness.industryRotor (electric)Statorlaw.inventionQuantitative Biology::Subcellular ProcessesSettore ING-INF/04 - AutomaticaRate of convergenceControl theorylawInduction Motors Reduced Order Observers.Rotor fluxSensitivity (control systems)businessInduction motorIFAC Proceedings Volumes
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