Browsing 2017 by Issue Date

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  • Locus Diagrams of Net Magnetic Field Vector of Dual Winding Induction Motor 
    CANAKOGLU, Ali Ihsan; MURAT, Mehmet; ASIM, Tezcan; YETGIN, Gökhan; CEVHER, Barış; TURAN, Mustafa (Institute of Electrical and Electronics Engineers, 2017)
    The rotating magnetic field is the major concept of induction and synchronous machines. For a three phase induction motor, locus of net magnetic field of single winding stator is a circle which radius is equal to 3/2 times ...
  • 3D FEM Validation of Homo-Heteropolar Synchronous Machine for Wind or Hydro Applications 
    TOPOR, Marcel; DEACONU, Sorin Ioan; TUTELEA, Lucian Nicolae; NUCĂ, Ilie; BURDUNIUC, Marcel (Institute of Electrical and Electronics Engineers, 2017)
    In an effort to introduce a low cost (PM less), low power electric wind or hydro generators, this paper reports on preliminary design aspects, 3D FEM analysis of a 2.5 KVA, 250- 1000 rpm, reactive homo-heteropolar brushless ...
  • About a Matlab Graphical User Interface to Analyze Stresses During the Transient Regimes in the High Voltage Substations 
    BROJBOIU, Maria; IVANOV, Virginia (Institute of Electrical and Electronics Engineers, 2017)
    In this paper is presented a Matlab graphical user interface useful to compute the thermal and dielectric stresses which means the parameters computation of the short circuit currents or transient recovery voltages which ...
  • Design of a Sliding Mode Controller to Eliminate the Limit Cycle in Chaotic Van der Pol System in Comparison with State Feedback Controllers 
    AHMAD, Shahzad; YASIN, Abdul Rehman; PLESCA, Adrian; YOUNIS, Usman (Institute of Electrical and Electronics Engineers, 2017)
    In this paper sliding mode controller is designed in comparison with the linear state space feedback controllers namely the pole placement controller and linear quadratic regulator to eliminate the chaotic limit cycle ...
  • Manufacturing and Clinically Testing Embedded Electrodes in Knitted Textiles for Neurorehabilitation 
    POBORONIUC, Marian-Silviu; IRIMIA, Danut; POBORONIUC, Ioana; IGNAT, Bogdan; CURTEZA, Antonela; MACOVEI, Laura; CRETU, Viorica; BUZDUGAN, Maria (Institute of Electrical and Electronics Engineers, 2017)
    Functional Electrical Stimulation (FES) aims to induce programmed exercises in paralyzed limbs of people who suffered a stroke, in order to improve their rehabilitation process. Nowadays, surface pre-gelled transcutaneous ...
  • About Monitoring of Joint Coils from Electric Traction Railway 
    MUNTEANU, Adrian; ADAM, Maricel; ANDRUŞCĂ, Mihai; DRAGOMIR, Alin; BOGHIU, Elvis (Institute of Electrical and Electronics Engineers, 2017)
    The general structure of the electric traction system highlights the complexity and diversity of electrical equipment from the power supply. The return circuit, part of electric traction railway, consists of the running ...
  • Simultaneous Estimation of Speed and Rotor Resistance in the Sensorless Vector Control Systems with Induction Motors 
    STOICUTA, Olimpiu; PANA, Teodor; MOLNAR, Robin; DEACONU, Daniel (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents a new method of simultaneous estimation of speed and rotor resistance of an induction motor, from a sensorless vector control system. The simultaneous estimation of the speed, rotor flux and of rotor ...
  • Wavelet Transform and Neural Network Based Control Strategy for Hybrid Energy System 
    BACIU, Alina-Georgiana; LIVINT, Gheorghe (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents a control strategy for a hybrid electric vehicle with two energy sources on board: battery and ultracapacitor. For this configuration it is proposed a new method for prediction of power demand time ...
  • Time Delay Evaluation in Printed Circuit Boards based on Timed Hard Petri Nets 
    SUDACEVSCHI, Viorica; ABABII, Victor; CALUGARI, Dmitri; BORDIAN, Dimitrie (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents a synthesis method for delay time evaluation in the printed circuit boards based on Timed Hard Petri Nets. For the specification and modeling of the delay time evaluation system, Timed Synchronous Petri ...
  • Carbon Dioxide Emissions Reduction by Renewable Energy Employment in Romania 
    CIUPĂGEANU, Dana-Alexandra; LĂZĂROIU, Gheorghe; TÎRŞU, Mihai (Institute of Electrical and Electronics Engineers, 2017)
    Meeting environmental constraints represents a particularly important condition that energy systems are currently facing, especially with the emphasis on mitigating global warming process. Reducing carbon dioxide emissions ...
  • Coordinated Reactive Power Control of DFIG to Improve LVRT Charateristics of FSIG in Wind Turbine Generation 
    DUONG, Minh Quan; SAVA, Gabriela Nicoleta (Institute of Electrical and Electronics Engineers, 2017)
    In almost all European countries, the penetration of wind power systems and the wind turbines size continuously increases. Therefore, the grid code requirements are more and more restrictive concerning the necessity that ...
  • A Hybrid System Implementation for Residential Cluster 
    SIMA, Catalina Alexandra; LAZAROIU, George Cristian; DUMBRAVA, Virgil; TIRSU, Mihai (Institute of Electrical and Electronics Engineers, 2017)
    In the current situation, when conventional energy based on fossil fuel combustion are polluting and time-limited, there is an increasing emphasis on the exploitation of nonpolluting renewable sources. At both global and ...
  • Renewable Energy in Morocco: PhotovoltaicWater Pumping System 
    ABDOURRAZIQ, Sarah; ABDOURRAZIQ, Med. Amine (Institute of Electrical and Electronics Engineers, 2017)
    Renewable energies have a major importance of Morocco's new energy strategy. The geographical location of the Kingdom promotes the development of the use of solar energy. The use of this energy reduces the dependence on ...
  • Experimental Results of Photovoltaic Emulator Systems 
    ABDOURRAZIQ, M. A.; ABDOURRAZIQ, S.; MAAROUFI, M.; TLEMCANI, M. (Institute of Electrical and Electronics Engineers, 2017)
    In this paper, we present experimental results of photovoltaic (PV) emulator systems implemented in a low-cost microcontroller. The insufficiency of space for installation of real PV panels and the high costs of the ...
  • An Improved Fuzzy Slide Mode Control Applied to PV Systems 
    ABDOURRAZIQ, M. A.; ABDOURRAZIQ, S.; MAAROUFI, M. (Institute of Electrical and Electronics Engineers, 2017)
    The aim of this work is to present a novel fuzzy slide mode control (FSMC) to extract a maximum power point (MPP) of the photovoltaic (PV) generator. This technique allows tracking the MPP consequently for the different ...
  • Methodologies Regarding the Application of Optimum Criteria to the Vertical Earth Grounding Design, with Rectangular Outline 
    MAIER, Virgil; PAVEL, Sorin Gheorghe; BIROU, Iulian; BELEIU, Horia Gheoghe; CIORCA, Claudiu (Institute of Electrical and Electronics Engineers, 2017)
    The earth grounding (EGR) computation model contained in normative acts has multiple nonlinearities and functions with implicit definitions. In addition, through the values indicated for the utilization coefficients, the ...
  • Synthesis and Analysis of PWM Inverter Output Voltages 
    PICA, Constantin Sorin; MAIER, Virgil; PAVEL, Sorin Gheorghe; BELEIU, Horia Gheorghe (Institute of Electrical and Electronics Engineers, 2017)
    The output voltage analysis of PWM inverter, from the photovoltaic (PV) power plant, represents the first of the objectives of this research. On the one hand, a real voltage wave is analyzed, taken by oscillography and on ...
  • Failures Analysis in the 25 kV/50 Hz Railway Substations 
    CHIRIAC, Gabriel; NITUCA, Costica; CARDASIM, Maricel (Institute of Electrical and Electronics Engineers, 2017)
    This article presents an analysis of the failures recorded data in railway substations from the Romanian Railway system. The data were recorded for 11 years, from 2006 until 2016, for two railway substations. Types of ...
  • New Opportunities for Internship for the Technical University of Moldova’ Students 
    NUCA, Ilie; BURDUNIUC, Marcel; NUCA, Iurie; GRIGORITA, Ana; MIRCO, Valeria (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents a few current difficulties in organizing and executing internships for engineering students, when the national industry is in transition. Until this day, a number of large national enterprises do not ...
  • Trajectories in the Competence Field During Formative Assessment 
    GĂLĂŢANU, Cătălin Daniel (Institute of Electrical and Electronics Engineers, 2017)
    The issue of competence assessment in engineering is analyzed in the context of the lack of motivation for learning. The source of this lack of motivation comes from the distribution of high school students. This assignment ...

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