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Detecting the Liquid core in Continuous Casting Slabs by Load Torque Estimation in Unbending Zone
("Dunarea de Jos" University of Galati, 2002)
The development in continuous casting process has been strongly dominated
by the demands of quality improvement and reduced costs for steel products in recent
years. To achieve these goals consideration has been given ...
The Behavior Of Asymmetric Frontal Couplings With Permanent Magnets In Magnetic Powder And High Temperature Environments
("Dunarea de Jos" University of Galati, 2002)
The main purpose of this paper is the comparative analysis of the behavior of
frontal couplings with Nd-Fe-B permanent magnets in difficult environments, specific
to metallurgy – such as environments with magnetic powders ...
Real Time wind Turbine Simulator Based on Frequency Controlled Servomotor
("Dunarea de Jos" University of Galati, 2002)
This paper is a contribution to the development of a real time wind turbine
simulator. The simulator is designed to generate wind power on its shaft, and provide the
static and dynamic characteristics of a given turbine. ...
Numerical Treatment of some Complex Dynamic Processes of Saturated Induction Machine
("Dunarea de Jos" University of Galati, 2002)
Three variants for the mathematical models of the saturated induction machine (the
exact one, the classical one and the simplified one) are used for the analysis of the reversal
process combined with one short mechanical ...
Modeling, Identification and simulation of a Lighting Control System
("Dunarea de Jos" University of Galati, 2002)
This paper presents the results of the first phase in the design of a control
system for closed-loop regulation of the light amount in office-building rooms. This
project is a joint development of Ghent University and ...
Considerations on the Effect of Plastic Deformation Over the Magnetic Behavior of Soft Ferromagnetic alloy FE-3%SI NO
(2002)
The paper synthetically presents the results obtained over the degradation of
magnetic properties of soft ferromagnetic sheets Fe-3%Si NO required mechanically in
plastic deformation area. Chronologically, the evolution ...
Influence of High Performance Voltage Converters Supply Upon the Induction Motors Behaviour
("Dunarea de Jos" University of Galati, 2002)
The induction motors supply by converters leads to a distorted regime
accompanied by some parasite torques and some supplementary losses. These aspects
are emphasized further on because their quantitative determinations ...
Energetic Optimal Control of Adjustable Drive Systems
("Dunareade Jos" University of Galati, 2002)
In the paper is developed a new control strategy for the adjustable speed
drives. The strategy consists in the energetic optimal control of the dynamic regimes as
starting, stopping and reversing. The main developed ...
On the Snubber Influence to the Switching and Conduction Losses in a Converter Using Switched Capacitor
("Dunarea de Jos" University of Galati, 2002)
The paper deals to design and to compute the snubber parameters influence on
the switching and conduction losses of the transistors (IGBT) used as bidirectional
switches in a converter with switched capacitor. The converter ...
Speed and Rotor Flux Estimation in Speed Sensorless Control of Induction Motor
("Dunarea de Jos" University of Galati, 2002)
The paper compares the performances of several adaptive rotor flux and speed
estimation methods used in speed sensorless vector control of induction motor. First, a
short review of Luenberger, Gopinath, MRAS, Torque Error ...