Search results for "magnetic saturation"

showing 6 items of 6 documents

GA-based Off-Line Parameter Estimation of the Induction Motor Model Including Magnetic Saturation and Iron Losses

2020

This paper, starting from recent papers in the scientific literature dealing with Rotating Induction Motor (RIM) dynamic modelling, as a first step, improves its space-vector dynamic model, including both the magnetic saturation and iron losses; The main original aspects of the proposed model are the following: 1) the magnetic saturation of the iron core has been described on the basis of both current versus flux and flux versus current functions, 3) it includes the iron losses, separating them in hysteresis and eddy current ones, 4) it includes the effect of the load on the magnetic saturation. Afterwards, it proposes an off-line technique for the estimation of electrical parameters of thi…

EngineeringIdentificationMaterials scienceStatorParameter EstimationSpace-vector dynamic model02 engineering and technologylaw.inventionlawControl theoryIron losses0202 electrical engineering electronic engineering information engineeringEddy current0501 psychology and cognitive sciences050107 human factorsMagnetic saturationLeakage inductanceComputer simulationbusiness.industryEstimation theoryrotating induction motor (rim)05 social sciences020207 software engineeringMagnetic hysteresisInduction Motor (IM)Magnetic fluxFinite element methodMagnetic corelcsh:Electrical engineering. Electronics. Nuclear engineeringbusinesslcsh:TK1-9971Induction motor
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A nonlinear observer for rotor flux estimation considering magnetic saturation effects in induction motor drives

2015

This paper proposes a non-linear observer for In- duction Machine (IM) drives which takes into consideration the saturation effects. The non-linear observer is based on an original formulation of the dynamic model of the IM taking into consideration the magnetic saturation of the iron core. A Lyapunov based convergence analysis is proposed in order to suitably compute the observer gain guaranteeing the stability of the observer. The proposed non-linear observer has been tested in numerical simulation and experimentally on a suitably developed test set-up. Its behaviour has been compared to that obtained with a classic Full-Order Luenberger Observer (FOLO) in variable flux working conditions…

Lyapunov functionEngineeringmag- netic saturation effects.Computer simulationStatorbusiness.industryInduction Motor (IM)law.inventionInductancesymbols.namesakeAmplitudeSettore ING-INF/04 - AutomaticaMagnetic coreControl theorylawnonlinear observersymbolsState observerInduction Motor nonlinear observer magnetic saturation effects.businessInduction motor2015 IEEE Energy Conversion Congress and Exposition (ECCE)
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Self-Heating Induced Instability of a Non-Linear Inductor in a SMPS: a Case Study

2023

This paper proposes a case study to show that the non-linear operation of a power inductor in a SMPS can induce instability of the control system leading to overheating of the inductor beyond its allowable temperature and to an excessive peak of the maximum current. The case study is performed by a commercial ferrite inductor employed in a synchronous boost converter encompassing a control system to adjust the duty cycle, assuring a constant output voltage. The thermal transient is described by the time domain waveforms and thermal images.

Non-linear inductor ferrite inductor magnetic saturation stability power density switched mode power supplySettore ING-INF/01 - Elettronica
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A Nonlinear Control of Synchronous Reluctance Motors (SynRM) Based on Feedback Linearization Considering the Self and Cross-Saturation Effects

2019

This paper proposes a nonlinear controller based on feedback linearization for Synchronous Reluctance Motors (SynRM) drives that takes into consideration the self and cross-saturation effects. Such control technique permits the dynamics of both the speed and flux loops to be maintained constant independently from the load and the saturation of the iron core. The proposed technique has been tested experimentally on a suitably developed test set-up.

feedback linearizationComputer scienceMagnetic reluctance05 social sciencesSynchronous reluctance motors (SynRM)020207 software engineering02 engineering and technologyNonlinear controlNonlinear systemSettore ING-INF/04 - AutomaticaMagnetic coreControl theorymagnetic saturation0202 electrical engineering electronic engineering information engineeringTorque0501 psychology and cognitive sciencesSynchronous reluctance motors (SynRM) Feedback linearization Magnetic saturationFeedback linearizationSaturation (magnetic)050107 human factors2019 IEEE Energy Conversion Congress and Exposition (ECCE)
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Feedback Linearizing Control of Induction Motor Considering Magnetic Saturation Effects

2015

This paper presents an input-output feedback linearization (FL) control technique for rotating induction motors, which takes into consideration the magnetic saturation of the iron core. Starting from a new formulation of the dynamic model taking into consideration the magnetic saturation expressed in a space-state form in the rotor-flux-oriented reference frame, the corresponding FL technique has been developed. To this aim, a particular care has been given to the choice of nonlinear functions interpolating the magnetic parameters versus the rotor magnetizing current and the corresponding magnetic characteristic. The proposed FL technique has been tested experimentally on a suitably develop…

input-output feedback linearizationEngineering020209 energyInduction Motor input-output feedback linearization magnetic saturation effects.02 engineering and technologyIndustrial and Manufacturing Engineeringlaw.inventionSettore ING-INF/04 - AutomaticaControl theorylawmagnetic saturation effects0202 electrical engineering electronic engineering information engineeringTorqueFeedback linearizationInduction motor (IM)Electrical and Electronic Engineeringmagnetic saturation effects.MathematicsVector controlbusiness.industryRotor (electric)020208 electrical & electronic engineeringinput-output feedback linearization (FL)InductanceNonlinear systemMagnetic coreControl and Systems EngineeringbusinessInduction motorReference frame
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Feedback Linearization Based Nonlinear Control of SynRM Drives Accounting for Self- and Cross-Saturation

2022

This article proposes a nonlinear controller based on feedback linearization (FL) for synchronous reluctance motor (SynRM) drives which takes into consideration the magnetic saturation. The proposed nonlinear FL control based control technique has been developed starting from the theoretical definition of an original dynamic model of the SynRM taking into consideration both the self- and the cross-saturation effects. Such a control technique permits the dynamics of both the speed and axis flux loops to be maintained constant independently from the load and the saturation of the iron core in both constant flux and variable direct axis flux operating conditions. Finally, sensitivity of the pe…

synchronous reluctance motors (SynRM)Settore ING-INF/04 - AutomaticaControl and Systems Engineeringmagnetic saturationElectrical and Electronic EngineeringFeedback linearization (FL)Industrial and Manufacturing Engineering
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