Browsing 2017 by Title

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  • Methodical approach to weak buses and ties detection in a power system 
    STRATAN, Ion; RADILOV, Tudor; PRIPA, Marin; GROPA, Victor (Institute of Electrical and Electronics Engineers, 2017)
    The paper covers a complex approach to weak buses and ties detection in a power system. The applied method is based on singular value decomposition of sensitivity matrix to identify the weak spots in a power system and the ...
  • 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 ...
  • Mobile Prototype with Solar Panels for Rehabilitation of Natural Reservations Lakes 
    RADULESCU, Victorita (Institute of Electrical and Electronics Engineers, 2017)
    In Romania, there are two Natural Reservations Lakes Mangalia and Techirghiol with salt-water, near the Black Sea, which confront with new environmental problems. In the last decades appeared infiltration with fresh-water, ...
  • The Model of Places for Recreation and Relaxation of People Taking into Account the Urboecological Aspects of Evolution of a Modern City 
    ZICMANE, Inga; BERZINA, Kristina; KUCKOVSKIS, Jevgenijs; BERZINA-NOVIKOVA, Natalija; ZICMANE, Ilga (Institute of Electrical and Electronics Engineers, 2017)
    The main negative factors of urbanization are both, environmental problems (pollution of the urban environment, increase of building density, decrease of the green area, etc.), and the destructive influence of the big city ...
  • Monitoring Photovoltaic Parks for Damage Prevention and Optimal Operation 
    HABA, Cristian-Győző (Institute of Electrical and Electronics Engineers, 2017)
    The effects of climate change due to global warming as a result of increased carbon dioxide emissions are beginning to become more and more visible due to the more frequent occurrences of extreme weather phenomena even in ...
  • 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 ...
  • A Note on Leakage Diagnosis for an Irrigation Network 
    MARZOUGUI, T.; BENELGHALI, S.; OUTBIB, R.; DOUMENC, F. (Institute of Electrical and Electronics Engineers, 2017)
    This note is a contribution to the problem ofb leakage detection in irrigation networks. The main goal is to reduce the lost water due to the leakages. This lost water represents a source of useless electrical energy ...
  • Novel Method for Control of non linear system based on Negative Acceleration 
    BENMILOUD, Tarek (Institute of Electrical and Electronics Engineers, 2017)
    In this paper, a novel method of control of non linear system is presented. The new concept describes a method to obtain a stabilized control of non linear system. This method shows that by imposing a negative value for ...
  • Numerical Model for a Plunger-Type AC Electromagnet 
    POPA, Ioan C.; DOLAN, Alin-Iulian (Institute of Electrical and Electronics Engineers, 2017)
    In this paper we propose an approach for the determination of static force characteristic of a plunger-type AC electromagnet using 2D numerical model developed in QuickField software. The attraction electromagnetic force ...
  • Optimization of a Method to Evaluate the Fundamental Frequency in Real Time 
    COCIU, Voinea Radu; COCIU, Livia (Institute of Electrical and Electronics Engineers, 2017)
    The problem studied in this paper and described in the literature is determining the fundamental frequency of a non-trivial signal in real-time. Using the gradient-descent algorithm, a new optimized method for fundamental ...
  • Optimizing the Design of an Asynchronous Motor Used in the Drive System of a Multiple Unit Train 
    PRESURĂ, Raluca-Cristina; VLAD, Ion; NICOLAE, Marian-Ştefan; NICOLAE, Petre-Marian (Institute of Electrical and Electronics Engineers, 2017)
    Some aspects concerning the optimal design and sizing of an asynchronous traction motor are described. The motor must be integrated with a static converter in the traction system of a locomotive driving a multiple unit ...
  • Permanent Energetic Management a Solution in Rehabilitation of Small Hydropower Plants 
    RADULESCU, Victorita (Institute of Electrical and Electronics Engineers, 2017)
    The paper presents an evaluation of the role, importance, and necessity of the rehabilitation for the main courses of small rivers, equipped with Small Hydropower Plants- SHP. The assurance of a proper management, in ...
  • Photovoltaic Pump System Design for Small Irrigation 
    SOBOR, Ion (Institute of Electrical and Electronics Engineers, 2017)
    A method of PV pump system calculation for small irrigation is presented. The solar radiation calculation was performed with PVGIS software. The numerical example contains pump flow rates, pumped water volumes (daily, ...
  • Pole Magnets Segmentation Effect on Permanent Magnet Synchronous Generators 
    VIRLAN, Bogdan; MUNTEANU, Adrian; LIVADARU, Leonard; SIMION, Alecsandru; NACU, Ionut (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents the analysis of using segmented permanent magnet instead of single pole units on a synchronous generator. The main reason of using such solutions is the fact that smaller, simple shapes permanent magnets ...
  • The potential of micro grids concept implementation in the Republic of Moldova 
    POSTORONCA, Sveatoslav; TIRSU, Mihai (Institute of Electrical and Electronics Engineers, 2017)
    The paper draws attention on the issue of national power system modernization from inside, as a component part included in the multiple set of challenges standing before energy sector development in context of identification ...
  • The principles of determining energy efficiency in the production of agricultural products 
    ERHAN, F.; BANTAS, R. (Institute of Electrical and Electronics Engineers, 2017)
    Various amounts of energy resources are consumed in the process of production and primary processing of agricultural products. This amount of energy resources influences on the production costs and final prices of that ...
  • Quality Assurance in Online Education – in the Tehnical University of Moldova Experience 
    TODOS, Petru; VÎRLAN, Petru; GHENCEA, Cristina (Institute of Electrical and Electronics Engineers, 2017)
    Online education constitutes an important component in the continuous growth / development of higher education and adult education. Its quality largely depends on the design rules and the evaluation standards of the programs ...
  • The quality of online courses in the students perception 
    GHENCEA, Cristina; TODOS, Petru; VÎRLAN, Petru (Institute of Electrical and Electronics Engineers, 2017)
    Ensuring the quality of online learning in higher education institutions is a growing concern in recent years. While several studies have focused on the perception of the quality of online education by academic staff and ...
  • Reduction of Power Consumption for Cathodic Protection of Reinforced Concrete Pillars 
    COLESNIC, Igor; ANISIMOV, Vladimir; POSTORONCA, Sveatoslav; ANISIMOV, Victor (Institute of Electrical and Electronics Engineers, 2017)
    For electrical protection of steel products against corrosion, two protection options are used, named respectively the polarity of the potential supplied to the item: cathodic and anodic. For cathodic protection, which is ...
  • 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 ...

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