Căutare Annals of the University "Dunarea de Jos" of Galati. Fascicle III: Electrotechnics, Electronics, Automation Control and Informatics după Titlu

Afișează articolele 50-69 of 230

    • Design of LCL Resonant Converter for Electrolyser 

      Chandrasekhar, P.; Rama Reddy, S. ("Dunarea de Jos" University of Galati, 2010)
      An Electrolyser linked with a DC bus are analyzed and discussed in this paper. An electrolyser is a part of renewable energy system which generates hydrogen from water electrolysis. An LCL series parallel resonant converter ...

    • Designing a Modular Simulator for a Navigation Lock 

      Bărbulescu, Lucian-Florentin; Mînzu, Viorel ("Dunarea de Jos" University of Galati, 2012)
      When building a simulator for an industrial installation, a divide and conquer approach can have very good results. This means that the original installation is divided into smaller components which are simulated independently ...

    • Detecting the Liquid core in Continuous Casting Slabs by Load Torque Estimation in Unbending Zone 

      Bivol, Ion; Roşu, Emil; Ceangă, Emil ("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 ...

    • Determining the Optimal Period for Renewal Within Evolutionary Strategies 

      Mărăşescu, Nicolae ("Dunarea de Jos" of Galati, 2014)
      This paper deals with the determination of the optimal period for renewal of the equipment described by a reliability model with constant parameters. For this purpose use is made of an evolutionary strategy based on a ...

    • Development of a Simulink Toolbox for Friction Control Design and Compensation 

      Dumitriu, Teodor ("Dunarea de Jos" University of Galati, 2005)
      This paper focuses on the development of a MATLAB/Simulink® library for servo-systems with friction as a part of a new simulation platform dedicated to model, analysis and control design of friction. It is well known that ...

    • Development of Wind Turbine Systems with Parallel Connections of Different Types Generators 

      Costin, Mădălin; Voncilă, Elena; Voncilă, Ion; Nichita, Cristian; Fetecău, Grigore ("Dunarea de Jos" University of Galati, 2011)

    • A Diferent Approach in the Parameters' Identification of a Jfet Using Genetic Algorithms 

      Belea, Radu; Beldiman, Liviu ("Dunarea de Jos" University of Galati, 2002)
      The genetic algorithms are developing in three directions: the genetic algorithms theory, the genetic algorithms programming and the study of the problems that can be solved with genetic algorithms. In this paper it is ...

    • Digital Simulation of Closed Loop ZVS-ZCS Bidirectional DC-DC Converter for Fuel Celland Battery Application 

      Kumar Bhajana, V.V. Subrahmanya; Rama Reddy, S. ("Dunarea de Jos" University of Galati, 2010)
      A closed loop ZVS-ZCS bidirectional dc-dc converter is modeled and appropriate digital simulations are provided. With the ZVS-ZCS concept, the MATLAB simulation results of application to a fuel cell and battery application ...

    • A Distortion Input Parameter in Image Denoising Algorithms with Wavelets 

      Gogu, Anista; Aiordăchioaie, Dorel ("Dunarea de Jos" University of Galati, 2009)
      The problem of image denoising based on wavelets is considered. The paper proposes an image denoising method by imposing a distortion input parameter instead of threshold. The method has two algorithms. The first one is ...

    • The Distribution of the Electricfield and of the Current Density in Casa of Electrocorrosion Countermeasures Using the Sacrifice Anodes Technique 

      Voncilă, Ion; Badea, Nicolae; Popa, Dorel ("Dunarea de Jos" University of Galati, 2005)
      An electric field oriented from sea water towards the ship, can develop an extraction work. The corrosion process was thus diminished, by a change in the ship’s hull mass, due to a continuous tore of the material from its ...

    • Distribution Systems Optimization with Computational Intelligence Algorithms 

      Gavrilas, Mihai; Ivanov, Ovidiu ("Dunarea de Jos" University of Galati, 2006)
      A dual particle swarm optimization - immune algorithm solution is presented in this paper to deal with the problem of optimum radial reconfiguration and reactive power compensation in distribution systems. The optimization ...

    • The Disturbance Model in Based Predictive Control 

      De Keyser, Robin ("Dunarea de Jos" Univesity of Galati, 2003)
      Model Based Predictive Control (MBPC) is a control methodology which uses a process model on-line in the control computer; this model is used for calculating output predictions and optimizing control actions. The importance ...

    • An Efficient DC-DC Converter with Bidirectional Power Flow 

      Rajarajeswari, N.; Thanushkodi, K. ("Dunarea de Jos" University of Galati, 2008)
      This paper introduces a Bi-directional DC-DC converter with adaptive fuzzy logic controller. Bidirectional power flow is obtained by same power components and provides a simple, efficient, and galvanically isolated ...

    • Electrical Engineering Guide 

      Marinescu, Cristina-Mihaela ("Dunarea de Jos" University of Galati, 2014)
      This paper describes the steps required to form a future electrical engineer. This guide informs what skills a future electrical engineer and what studies need to follow to meet the needs of an employer. This paper explains ...

    • Energetic Macroscopic Representation Applied to an Electrical Urban Transport System 

      Popa, Ioan Şerban; Popescu, Mihai Octavian; Popescu, Claudia ("Dunarea de Jos" University of Galati, 2002)
      An energetic description of the electric transport urban system ASTRAIK 415T is proposed according to a specific formalism. This is used to simulate the trolleybus system, equipped with a chopper and a direct current ...

    • Energetic Optimal Control of Adjustable Drive Systems 

      Roşu, Emil; Găiceanu, Marian; Bivol, Ion; Călueanu, Dumitru ("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 ...

    • Estimation of Steel Solidified Layer Thickness, for Continuous Casting Control Purposes 

      Munteanu, Mihai; Ceangă, Emil (2008)
      An important goal in continuous casting automation process rest in establishing a proper casting speed being able to assure a compromise between machine productivity and solidified skin cracking protection on the mould ...

    • Evaluation of two Algorithms for Change Detection Based on Vibration Signals Processing 

      Aiordăchioaie, Dorel (Universitatea "Dunărea de Jos" din Galați, 2017)
      Change detection and diagnosis are important activities and research directions, in the field of system engineering and conditional maintenance of the equipment and industrial processes. The processed signals are coming ...

    • Experimental Results of Bridgeless PFC Boost Converter 

      Gopinath, M.; Ramareddy, S. ("Dunarea de Jos" University of Galati, 2010)
      This paper deals with the simulation and implementation of a bridgeless PFC boost converter. The Bridgeless PFC Boost Converter Circuit is analyzed, simulated and implemented. The circuit has advantages like reduced ...

    • Experiments in Distributed Control of Autonomous Mobile Robots 

      Vasiliu, Grigore; Suşnea, Ioan ("Dunarea de Jos" University of Galati, 2012)
      Distributed control is known to produce simple and cost effective solutions for many control applications. This is particularily interesting for controlling autonomous mobile robots, where the designer faces severe constraints ...