Browsing 2017 by Title

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  • Environmental Solution with Renewable to restore the Capacity of the Hydropower Lakes 
    RADULESCU, Bogdan Alexandru; RADULESCU, Victorita (Institute of Electrical and Electronics Engineers, 2017)
    The paper structured in six parts intends to present a solution designed and implemented into a hydro-energetic lake confronted with a major problem, the excessive development of the aquatic vegetation. Nowadays it has the ...
  • The Estimation of the Technical and Financial Indicators of Exploitation Combined Heat and Power Plants with Variable Load 
    BERZAN, Vladimir; POSTOLATI, Vitaly; BABICI, Vladimir; BYCOVA, Elena (Institute of Electrical and Electronics Engineers, 2017)
    The paper presented the algorithm for elaboration of the phenomenological model of the generation source, which includes both the technical and financial indices of operation, as well as the costs to the primary energy ...
  • Estimation of the Wind Power Plants Capacity to be Integrated in Actual Power System of Moldova 
    TÎRŞU, Mihai; ZAIŢEV, Dmitrii; GOLUB, Irina; CALININ, Lev; LAZAROIU, George Cristian (Institute of Electrical and Electronics Engineers, 2017)
    Extension of share of renewable energy sources in energy mix is a big challenge for our community. First of all we should fight against global warming by cutting emissions of GHG. Secondly we should increase energy security ...
  • Evaluation of the minimum operating duration of cogeneration units that could ensure economic viability 
    ARION, Valentin; CHELMENCIUC, Corina; NEGURA, Călin (Institute of Electrical and Electronics Engineers, 2017)
    This article touches upon the issue of determining the annual minimum economic operating period of cogeneration units, based on internal combustion engines. The calculation of this important indicator for cogeneration ...
  • 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 ...
  • Experimental Tests Regarding Diagnosis of Some Faults of Car Alternators 
    ENACHE, Sorin; CAMPEANU, Aurel; VLAD, Ion; ENACHE, Monica-Adela (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents a practical way of identifying the defective diodes of an alternator. For this purpose are presented a series of experimental tests of some car alternators. There are detailed the automatic voltage ...
  • 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 ...
  • Faults Diagnosis in Transport and Distribution Lines Based on the Analytic Model 
    IVANOV, Virginia; BROJBOIU, Maria; IVANOV, Sergiu (Institute of Electrical and Electronics Engineers, 2017)
    The method based on analytic models can be used when the system behavior is compared with the results of the mathematical model which reproduces the system in normal operation conditions. The paper applies the diagnosis ...
  • FEM-based Analysis on the Operation of Three-Phase Induction Motor connected to Six-Phase Supply System. Part 1 – Operation under healty conditions 
    LIVADARU, Leonard; BOBU, Alexandra; MUNTEANU, Adrian; VÎRLAN, Bogdan; SIMION, Alecsandru (Institute of Electrical and Electronics Engineers, 2017)
    The paper presents a comparative analysis of a three-phase induction motor that operates connected to the industrial supply system and separately to a six-phase supply source, as well. The design of the electric machine ...
  • FEM-based Analysis on the Operation of Three-Phase Induction Motor connected to Six-Phase Supply System. Part 2 – Study on fault-tolerance capability 
    LIVADARU, Leonard; BOBU, Alexandra; MUNTEANU, Adrian; VÎRLAN, Bogdan; SIMION, Alecsandru (Institute of Electrical and Electronics Engineers, 2017)
    Based on the fact that the three-phase induction machine proves higher performance under six-phase supply, which was demonstrated in Part 1 of the paper, this work investigates the fault-tolerance capability of the six-phase ...
  • Five Phase Permanent Magnet Synchronous Generator Distributed Winding to Fractional Slot Concentrated Winding 
    MUNTEANU, Adrian; VIRLAN, Bogdan; LIVADARU, Leonard; SIMION, Alecsandru (Institute of Electrical and Electronics Engineers, 2017)
    A comparative study of a 5 phase PMSG with classical distributed winding and one with fractional slot winding is presented in this paper. Finite element analysis has been used for both models in order to estimate there ...
  • Fuzzy Control of Cooling Water Pumps related to a Power Plant 
    POPESCU, Daniela; BRATU, Cristian; DINU, Radu Cristian (Institute of Electrical and Electronics Engineers, 2017)
    Optimum operation of cooling water systems means minimum use of water while maintaining proper temperatures to limit algae growth and cool all equipment properly.Combined application of inverters and cooling water pumps ...
  • High-Efficiency Electronic Transformer for Powering of Individual Consumers from the Medium Voltage Grid 
    BERZAN, Vladimir; ERMURACHI, Iurie (Institute of Electrical and Electronics Engineers, 2017)
    The proposed and argued concept for realization includes the possibility of realizing an average of the medium voltage transformer, for example, with 10 / 0.22 kV parameters. Equipment with these parameters is known as ...
  • Hybrid Petri Nets a Framework for Hybrid Systems Modeling 
    DRIGHICIU, Mircea Adrian (Institute of Electrical and Electronics Engineers, 2017)
    The purpose of this paper is to present the achievement of the Hybrid Petri Nets techniques used for modeling and behavioral analysis of a class of hybrid systems. In our sense, a dynamic hybrid system contains at least ...
  • 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 ...
  • The image analysis of Moldavian oak chips 
    CHICIUC, Igor; URSU, Daniel; CHICIUC, Andrei (Institute of Electrical and Electronics Engineers, 2017)
    This study is focused on measuring the oak chips/wine contact surface. Two samples from Moldova were analyzed with the doses used in oenology. The results were compared with the data known for the barrel, oak chips doses ...
  • The Impacts of Distributed Generation Penetration into the Power System 
    DUONG, Minh Quan; TRAN, Ngoc Thien Nam; SAVA, Gabriela Nicoleta; SCRIPCARIU, Mircea (Institute of Electrical and Electronics Engineers, 2017)
    Nowadays, fossil fuels are depleted more and more. Renewable energy is one of the best solutions to replace conventional energy. The significant growth of Renewable energy sources indicates that it plays an important role ...
  • 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 ...
  • Increasing Power Quality in a 6-pulse DC-Traction Substation 
    POPESCU, Mihaela; BITOLEANU, Alexandru; SURU, Vlad; DOBRICEANU, Mircea (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents an active DC-traction substation with six-pulse uncontrolled rectifier, whose structure and control ensure the braking energy recovery and increased power quality in both traction and regeneration ...
  • Influence of energy characteristics of biogas obtained by anaerobic fermentation of animal proteins on combustion performance 
    LĂZĂROIU, Gheorghe; MIHĂESCU, Lucian; MAVRODIN, Mădălina; BONDREA, Andreya (Institute of Electrical and Electronics Engineers, 2017)
    In the worlds need for renewable energies environmental friendly solution, biogas production and usage has become one major interest topic which needs adjustments and research for every application domain. The tests carried ...

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