Browsing 2017 by Title

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  • Simple Control Strategy of the Series Filter within a Unified Power Quality Conditioner (UPQC) 
    IVANOV, Sergiu; CIONTU, Marian; SACERDOTIANU, Dumitru; RADU, Alexandru (Institute of Electrical and Electronics Engineers, 2017)
    Unified power quality conditioner (UPQC) consists of combined shunt and series active power filters which acts both on the source side and on the load side for improving the power quality. The paper presents a simple method ...
  • Simulation of Asynchronous Motor Tests on the Simpowersystems Program Base 
    IAZLOVETCHI, Leonid; IAZLOVETCHI, Maria; BURDUNIUC, Marcel; RUJANSCHI, Dumitru (Institute of Electrical and Electronics Engineers, 2017)
    In the paper is used the Simpowersystems program which is used for calculating the static mechanical characteristic and operating characteristics within the range of variation of rotor slippage. Also, the program can be ...
  • 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 ...
  • Study of a Tiredness Identification System 
    MILICI, Dan Laurențiu; GRAUR, Adrian; POIENAR, Mihaela; CENUȘĂ, Mihai; BARASCU, Andrei (Institute of Electrical and Electronics Engineers, 2017)
    The paper presents a designed, implemented and tested application intended to evaluate the level of attention to people who perform activities that require a high level of concentration, using a measurement system in one ...
  • Study of Conducted Electromagnetic Emissions of a Wireless Power System 
    ANDREICA, Sergiu; GLIGA, Marian; RACASAN, Adina; MUNTEANU, Calin; PACURAR, Claudia; CONSTANTINESCU, Claudia (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents a study regarding the conducted electromagnetic emissions of a wireless power system. Due to the fact that in the last few years there have appeared a lot of devices with wireless systems, it must be ...
  • Study of Direct-on-Line Starting of Low Power Asynchronous Motors 
    VLAD, Ion; CAMPEANU, Aurel; ENACHE, Sorin; ENACHE, Monica-Adela (Institute of Electrical and Electronics Engineers, 2017)
    This paper emphasizes technical and economic parameters at direct-on-line starting of low power asynchronous motors. There are presented a lot of simulations and there are carried out experimental tests, in order to establish ...
  • Study of the aerodynamics of wind rotors with horizontal axis: design, manufacture, testing 
    BOSTAN, Viorel; BOSTAN, Ion; DULGHERU, Valeriu; SOBOR, Ion; VACULENCO, Maxim; ODAINÂI, Valeriu; GLADÎŞ, Vitalie (Institute of Electrical and Electronics Engineers, 2017)
    The paper is dedicated to the study of aerodynamic effects in small power wind turbine rotors using mathematical models to describe the fluid flow physics and modern methods of numerical simulation in the framework of ...
  • Study, Design and Simulation of a Laboratory Module. Related to filters 
    BENTA, Marius Dan; LELUTIU, Laura Mihaela (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents the study, design and simulation of a laboratory module related to filters. With this laboratory platform it was accomplish a comparative study between current feedback (CFA) and voltage feedback (VFA). ...
  • Synchronous Undermodulation Control Modes of System with Three PWM Converters 
    OLESCHUK, Valentin; GRIVA, Giovanni; DERISZADEH, Adel; BURCENCO, Victoria (Institute of Electrical and Electronics Engineers, 2017)
    This paper is focused on the operation analysis of transformer-based ac drive system with three modulated converters connected specifically to windings of power transformer. It provides multilevel voltage to induction ...
  • 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 ...
  • SYSEG – Symbolic State Equation Generation 
    IORDACHE, Mihai; DELEANU, Sorin; CURTEANU, Ciprian; GALAN, Neculai; MOSCU, Atanasie (Institute of Electrical and Electronics Engineers, 2017)
    The main objective of this paper is to present an efficient method for the systematic formulation of the state equations characterizing linear and/or nonlinear, time-invariant analog circuits with elements in excess. The ...
  • A Theoretical Result on Stabilizability of Oxygen Excess Ratio for PEM Fuel Cell 
    NIANE, Moustapha; ZERROUGUI, Mohamed; OUTBIB, Rachid (Institute of Electrical and Electronics Engineers, 2017)
    This paper is a contribution to the problem of the control of PEM Fuel Cell. More precisely, a theoretical result is proposed to prove that the oxygen excess ratio value can controlled by using a continuous state feedback. ...
  • Three Parameters Optimization of Acting Force of DC Electromagnet 
    DOLAN, Alin-Iulian (Institute of Electrical and Electronics Engineers, 2017)
    The paper proposes an optimized geometry for a DC electromagnet combining the experimental design (DOE) and FEM. The optimization problem takes into account three geometrical parameters (coil shape ratio, support thickness ...
  • Three-dimensional models’ usage in courses placed on Moodle platform 
    SHULETEA, Angela; DINTU, Sergiu; VIRLAN, Petru (Institute of Electrical and Electronics Engineers, 2017)
    One of the biggest benefits of virtual education is the ability to easily explain complex processes and principles using animations and interactive 3D models. The purpose of this study is to determine which 3D software ...
  • Three-Phase Voltage Generator for Stands in the Research Concerning Devices Models for Energy Systems Interconnection 
    POSTOLATY, Vitalie; SUVOROV, Alexandr; ANISIMOV, Vladimir (Institute of Electrical and Electronics Engineers, 2017)
    Due to with the actuality of the task of interconnection of non-synchronously operating alternating current energy systems, an experimental comparison of the interconnection devices models, which implement various methods ...
  • 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 ...
  • 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 ...
  • Unbundled Smart meters in the new smart grid era. Assessment on compatibility with European standardisation efforts 
    SANDULEAC, Mihai; TOMA, Lucian (Institute of Electrical and Electronics Engineers, 2017)
    With the new active distribution network where distributed energy resources are increasingly present and where Smart meters will become the most ubiquitous equipment in low voltage (LV) networks, we are presenting a new ...
  • Using Differential Evolution Algorithms for the Analysis of Nonlinear Circuits 
    PETRESCU, Camelia; PLOPA, Olga (Institute of Electrical and Electronics Engineers, 2017)
    The paper presents the analysis of nonlinear resistive networks using a loop current formulation. The solution to the nonlinear algebraic system of equations is sought using several variants of differential evolution (DE) ...
  • Virtual Monitoring of Electrical Circuitry 
    DONOSE, Costel; SCHREINER, Cristina-Mihaela; PODARU, Alexandru-Constantin; PAVEL, Ionel (Institute of Electrical and Electronics Engineers, 2017)
    The use of virtual instruments has a very important role in both specialized laboratories and academic ones. Because it is a modern method, it provides increased comfort in monitoring electrical circuits in the long term, ...

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